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INTEGRATED CIRCUITS
DATA SHEET
UBA1702; UBA1702A Line interrupter driver and ringer
Product specification Supersedes data of 1996 Jan 09 File under Integrated Circuits, IC03 1997 Sep 29
Philips Semiconductors
Product specification
Line interrupter driver and ringer
FEATURES Speech part · Driver for the line interrupter that can be either a PMOST when UBA1702 is used or a PNP when UBA1702A is used · Adjustable over-current protection · Adjustable over-voltage protection for transmission circuit · Adjustable mute (dialling mode voltage; DMO or NSA) · Adjustable current loop detection (hook switch status) · Microcontroller supply · Provision for electronic hook switch. Ringer part · Over-voltage protection · Ringer frequency output for frequency discrimination · Adjustable ringer threshold for piezo-driver enable · Three bits ringer volume control · Bridge-tied-load (BTL) output stage for piezo transducer · Fast start-up microcontroller supply. APPLICATIONS Miscellaneous
UBA1702; UBA1702A
· Separated ground pins for transmission circuit interface and control signals (e.g. for TEA1064A) · Possibility to supply the microcontroller with an external voltage source.
· Telephone sets with software controlled ringer function · Telephone sets with electronic hook switch. GENERAL DESCRIPTION The UBA1702; UBA1702A performs the high voltage interface and ringer functions of the corded analog telephone set in close cooperation with a microcontroller and transmission circuit. The UBA1702; UBA1702A incorporates several protections, a driver for the line interrupter and a ringer. Because of the practical division of functions between the microcontroller, the transmission circuit and the UBA1702; UBA1702A, it is possible to have a higher integration level thereby reducing significantly the number of discrete components in a telephone set.
ORDERING INFORMATION PACKAGE TYPE NUMBER NAME UBA1702 UBA1702A UBA1702T UBA1702AT DIP28 DIP28 SO28 SO28 DESCRIPTION plastic dual in-line package; 28 leads (600 mil) plastic dual in-line package; 28 leads (600 mil) plastic small outline package; 28 leads; body width 7.5 mm plastic small outline package; 28 leads; body width 7.5 mm VERSION SOT117-1 SOT117-1 SOT136-1 SOT136-1
1997 Sep 29
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
UBA1702; UBA1702A
QUICK REFERENCE DATA Speech part: lline = 20 mA; DPI = LOW; Tamb = 25 °C; VEE = 0 V; unless otherwise specified. Ringer part: Vline(rms) = 45 V; f = 25 Hz; using an RC combination of 2.2 k and 820 nF and a diode bridge between the line and the RPI input. SYMBOL Speech part SWITCH DRIVER AND REFERENCES (PINS SDI, SDO, EHI AND DPI); UBA1702A ONLY RSDO RSDI-SDO RSDI VSPO(M) VSPO(Z) resistance between pins SDO and VEE resistance between pins SDI and SDO VSDI - VSDO < 12 V resistance between pins SDI and VEE adjustable mute voltage referenced to VEE VSDI = 240 V; DPI = HIGH MSI = HIGH; MSA open-circuit - - 5 - 11 2.2 - - - 3 13 k PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
SWITCH DRIVER AND REFERENCES (PINS SDI, SDO, EHI AND DPI); UBA1702 AND UBA1702A 1.1 - 2.7 12 M M
MUTE SWITCH AND ADJUSTABLE PROTECTION ZENER VOLTAGE (PINS MSI, MSA AND ZPA) V V
adjustable zener voltage referenced to MSI = LOW; VEE ZPA open-circuit current limitation (pin SPI) current detection (pin SPI) CLA shorted to VEE CDA open-circuit VBB > 3.7 V; IDD = -1 mA
CURRENT MANAGEMENT (PINS SPI, SPO, CDA, CLA AND CDO) lSPI(lim) ISPI(det) VDD - 2 120 3 - 4 mA mA
MICROCONTROLLER SUPPLY (VDD AND VBB) supply output voltage referenced to VSS 3.0 3.3 3.6 V
Ringer part PROTECTION (PIN RPI) IRPI(max) VRR(th) maximum input current 70 - - 11 - - mA
RINGER THRESHOLD AND FREQUENCY DETECTION (PINS VRR, RTA AND RFO) ringer supply threshold voltage referenced to VSS step resolution last step resolution RTA open-circuit V
VOLUME CONTROL (PINS RV0, RV1 AND RV2) Gs Gls (RV2, RV1, RV0) from (0, 0, 0) to (1, 1, 0); note 1 (RV2, RV1, RV0) from (1, 1, 0) to (1, 1, 1); note 2 - - 6 9.5 - 12 dB dB
RINGER MELODY INPUT AND PIEZO DRIVER (PINS RMI, ROA AND ROB) Vo(max p-p) maximum output voltage between pins RV2 = 1; RV1 = 1; RV0 = 1 - ROA and ROB (peak-to-peak value) Notes 1. Independent of VRR if greater than 10 V. 2. Without piezo transducer, dependent on VRR. 28.7 32 V
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
BLOCK DIAGRAM
UBA1702; UBA1702A
handbook, full pagewidth
SDI 1
SDO CLA 2 25
CDO CDA 24 26
SPI SPO 5 6
SPEECH
ZENER PROTECTION 14 V VSS VDD SENSE 9 ZPA
DPI
4 Sref
S ref 10 MSA
EHI
28 Sref R ref VSS SWITCH DRIVER LINE CURRENT MANAGEMENT MUTE SWITCH VSS VDD 8 MSI
V BB VDD
19 18
SUPPLY SPO Vref
Sref
17
UBA1702; UBA1702A UBA1702T; UBA1702AT
V SS V EE
7
REFERENCES V SS VRR VRR
V SS
Rref
22
ROA
RINGER FREQUENCY DETECTION VDD RFO 12 V SS VDD
RINGER
V SS V SS
VDD 20
ROB
1/2 VDD
VDD
RINGER MELODY INPUT AND PIEZO DRIVER
RPI
23
V RR
VDD V SS
13
RV0
R ref
DIGITAL -TOANALOG CONVERTER VDD VOLUME CONTROL
VDD V SS VDD V SS
14
RV1
R ref RINGER PROTECTION
VSS RINGER THRESHOLD
15
RV2
21
11
16
MBE184
RTA VRR
RMI
Fig.1 Block diagram.
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
PINNING SYMBOL SDI SDO n.c. DPI SPI SPO VEE MSI ZPA MSA RTA RFO RV0 RV1 RV2 RMI VSS VDD VBB ROB VRR ROA RPI CDO CLA CDA n.c. EHI PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 DESCRIPTION switch driver input switch driver output not connected dialling pulse input speech part input speech part output
handbook, halfpage
UBA1702; UBA1702A
ground for transmission circuit mute switch input Zener protection adjustment input mute switch adjustment input ringer threshold adjustment input ringer frequency output ringer volume input; bit 0 ringer volume input; bit 1 ringer volume input; bit 2 ringer melody input ground for microcontroller and ringer microcontroller supply voltage supply voltage from transmission circuit ringer output B ringer supply voltage ringer output A ringer part input current detection output current limitation adjustment input current detection adjustment input not connected electronic hook switch input
SDI SDO n.c. DPI SPI SPO VEE MSI ZPA MSA RTA RFO RV0 RV1
1 2 3 4 5 6 7 8 9 10 11 12 13 14
MBE183
28 EHI 27 n.c. 26 CDA 25 CLA 24 CDO 23 RPI UBA1702 UBA1702T UBA1702A UBA1702AT 22 ROA 21 V RR 20 ROB 19 V BB 18 V DD 17 V SS 16 RMI 15 RV2
Fig.2 Pin configuration.
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5
Philips Semiconductors
Product specification
Line interrupter driver and ringer
FUNCTIONAL DESCRIPTION The values given in this functional description are typical values except when otherwise specified. Speech part The speech part consists of three blocks, the switch driver, the line current management and the mute switch (DMO or NSA) combined with an adjustable over-voltage (zener) protection circuit. The reference block, which generates reference voltages and currents, is also used in the speech part (see Fig.1) by the mute switch block. SWITCH DRIVER (PINS SDI, SDO, EHI AND DPI)
UBA1702; UBA1702A
voltage applied at pin DPI is LOW, the switch driver block turns on the external PMOST interrupter. The external PMOST interrupter is controlled by the voltage between the switch driver input and output (pins SDI and SDO). When the voltage applied at pin EHI is HIGH and the voltage applied at pin DPI is LOW, the voltage at SDO is pulled down to a value less than 0.2 V in order to create a high source-gate voltage (VSG) for the external PMOST. However, in order to avoid break-down of the external PMOST, the voltage difference between SDI and SDO is internally limited to 14 V. When the voltage applied at pin EHI and the one applied at pin DPI are both HIGH, pin SDO can be considered as being connected to pin SDI via a 1.1 M pull-up resistor while the impedance between SDI and VEE becomes very high (a few M). When the voltage applied at pin EHI is LOW, whatever the one applied at DPI is, pin SDO can be considered as being connected to pin SDI via a 1.1 M pull-up resistor while the impedance between SDI and VEE becomes almost infinite.
UBA1702
The UBA1702 switch driver block is intended to generate the appropriate signal to drive an external PMOST interrupter. The source and gate of this PMOST are respectively connected to SDI and SDO. The electronic hook switch input (EHI) and the dialling pulse input (DPI) signals control the state of this PMOST. The EHI pin is provided with high voltage capability. When the voltage applied at pin EHI is HIGH, the switch driver block will start and generate the proper signals to switch on the external PMOST interrupter. When the telephone set is equipped with a mechanical hook switch, pin EHI can be connected directly to the switch driver input (pin SDI). For electronic hook switch applications, the EHI pin can be driven by the microcontroller output. In some special applications, the EHI pin can be current driven. In such a case, the current available at SDO to turn on the PMOST interrupter is approximately 10 times the EHI input current (providing IEHI < 2 µA). The EHI pin presents an impedance of 250 k at low input voltage. When the applied voltage at EHI goes above approximately 30 V, the EHI input current remains constant (see Fig.3) so that the EHI impedance increases. The DPI is designed to switch on or off the external PMOST interrupter (providing EHI is HIGH). When the voltage applied at pin DPI is HIGH, the switch driver block turns off the external PMOST interrupter. When the
MGD178
handbook, halfpage
80
IEHI (µA) 60
40
20
0 0 100 200 300 VEHI (V) 400
Fig.3 EHI input characteristics.
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
UBA1702A
The UBA1702A switch driver block is intended to generate the appropriate signal to drive an external PNP interrupter. The emitter and base of this PNP are respectively connected to SDI and SDO. The EHI and DPI signals control the state of this PNP. The EHI pin is provided with high voltage capability. When the voltage applied at pin EHI is HIGH, the switch driver block will start and generate the appropriate signals to switch on the external PNP interrupter. When the telephone set is equipped with a mechanical hook switch, pin EHI can be connected directly to pin SDI. For electronic hook switch applications, the EHI pin can be driven by the microcontroller output. The EHI pin presents an impedance of 250 k at low input voltage. When the applied voltage at EHI goes above approximately 30 V, the EHI input current remains constant (see Fig.3) so that the EHI impedance increases. The DPI is designed to switch on or off the external PNP interrupter (providing EHI is HIGH). When the voltage applied at pin DPI is HIGH, the switch driver block turns off the external PNP interrupter. When the voltage applied at pin DPI is LOW, the switch driver block turns on the external PNP interrupter. The external PNP interrupter is controlled by the current flowing into pin SDO. When the voltage applied at pin EHI is HIGH and the voltage applied at pin DPI is LOW, pin SDO can be considered as being connected to pin VEE via a 2.2 k resistor in order to create a base current for the external PNP. When the voltage applied at pin EHI and the one applied at pin DPI are both HIGH, pin SDO can be considered as being connected to pin SDI via a 1.1 M pull-up resistor while the impedance between SDI and VEE becomes very high (a few M). When the voltage applied at pin EHI is LOW, whatever the one applied at DPI is, pin SDO can be considered as being connected to pin SDI via a 1.1 M pull-up resistor while the impedance between SDI and VEE becomes almost infinite.
UBA1702; UBA1702A
LINE CURRENT MANAGEMENT (PINS SPI, SPO, CDA, CLA AND CDO) The line current is measured by an internal 2 resistor and a sense circuit connected between the speech part input and output (pins SPI and SPO). The circuit delivers information about the hook switch status at the current detection output (pin CDO) and controls the line current limitation. When the SPI current exceeds a certain level (3 mA), the sense circuit injects some image of the SPI current into an internal resistor (see Fig.1). The created voltage becomes higher than an internal reference (approximately 0.3 V) and CDO goes HIGH. This current detection level can be increased by connecting a resistor between pins CDA (current detection adjustment) and VEE. It is also possible to connect a capacitor between pins CDA and VEE to filter unwanted AC components of the line current signal. Line current interruption during pulse dialling influences the CDO output. When the SPI current exceeds another current level (45 mA), the sense circuit injects some image of the SPI current into an internal resistor (see Fig.1). The created voltage becomes higher than an internal reference (approximately 0.4 V) and an internal signal is generated in order to limit the current in the external interrupter thus resulting in a line current limitation. This line current limitation level can be increased up to a maximum value of 120 mA by connecting a resistor between pins CLA (current limitation adjustment) and VEE. When a PMOST (UBA1702) is used as an interrupter, the SPI current equals the drain or source current of the PMOST and thus also equals the line current. When a PNP (UBA1702A) is used as an interrupter, the SPI current equals the collector current of the PNP and thus differs from the line current (the PNP base current does not flow into the SPI pin).
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
MUTE SWITCH AND ZENER PROTECTION (PINS MSI, MSA AND ZPA) The mute switch is, in fact, a switchable and electronic zener diode connected between the speech part output (pin SPO) and VEE. When the voltage applied at the mute switch input (pin MSI) is LOW, the switch is in over-voltage protection mode and the maximum SPO voltage is limited to 12 V. This level can be increased or decreased by connecting a resistor between pins ZPA (zener protection adjustment) and VEE or ZPA and SPO respectively. When the voltage applied at pin MSI is HIGH, the switch is in mute mode (DMO or NSA) resulting in a SPO voltage below 3 V. This level can be decreased by connecting a resistor between pins MSA (mute switch adjustment) and SPO. It should be noted that the mute switch stage is supplied from VDD thus a minimum voltage of approximately 2.1 V is required on VDD. REFERENCE The bias currents and voltages for the various speech blocks are generated by the reference block which is, in most cases, supplied from pin SPO. This block guarantees a high AC impedance at the SPO pin operating down to a low SPO voltage. Therefore, most speech part blocks operate independently from VDD. Ringer part The ringer part consists of five blocks, the ringer protection, the ringer threshold, the ringer frequency detection, the volume control and the piezo driver. The reference block which generates reference voltages and currents is also used in the ringer part (see Fig.1). RINGER PROTECTION (PINS RPI AND VRR) The ringer protection block converts the ringing current into a limited voltage between the ringer part input (pin RPI) and VEE. This voltage is used (via an internal diode) to generate the ringer supply voltage VRR which is mainly used for all ringer parts. The voltage at pin VRR must be filtered with a 22 µF capacitor connected between pins VRR and VSS. In electronic hook switch applications and also in speech mode (see Fig.8), pin RPI is always connected to the telephone line (through a series RC network and a diode bridge). In order not to disturb normal speech operation, a high AC impedance is present at pin RPI (providing the speech level is less than 1.5 V (RMS) i.e. 5.7 dBm).
UBA1702; UBA1702A
In the DMO or NSA mode (i.e. MSI is HIGH), the voltage across RPI and VEE is limited to 2.1 V. With this feature and in electronic hook switch applications, several additional ringers can be placed in parallel without tinkling during pulse dialling phase. RINGER THRESHOLD (PIN RTA) The piezo driver is internally enabled when the voltage at pin VRR exceeds a threshold level of 11 V. This threshold level can be increased or decreased by connecting a resistor between pins RTA (ringer threshold adjustment) and VSS or RTA and VRR respectively. Because of the built-in 6.5 V hysteresis, a voltage change at pin VRR (coming from current consumption increase when the piezo output is driven with a melody) will have no influence on this internal enabling signal. RINGER FREQUENCY DETECTION (PIN RFO) The ringer frequency detection block generates a square wave signal at the ringer frequency output (pin RFO) with twice the ringer signal frequency. This RFO signal can be used by the microcontroller for frequency discrimination. When the voltage at pin RPI drops below the voltage at pin VDD, RFO goes LOW. Pin RFO goes HIGH when the voltage at pin RPI exceeds the voltage at pin VRR. This VRR - VDD hysteresis allows the frequency detection circuit to ignore parasitic signals superimposed on the ringing signal. The voltage at pin EHI must be LOW to get a square wave at pin RFO. When the voltage at pin EHI is LOW, the voltage at pin RFO is always HIGH whatever the one at pin RPI is. VOLUME CONTROL (PINS RV0, RV1 AND RV2) The volume control input has three bits RV2, RV1 and RV0 to realize eight volume levels. The volume is controlled by regulating the supply voltage of the piezo output stage. The first six steps have a fixed value of 6 dB, the value of the last step (maximum volume) is dependent on the available voltage at pin VRR. Default setting during start-up is (RV2 = 0, RV1 = 0, RV0 = 0) which corresponds to minimum volume. In order not to damage the piezo transducer, the differential output ROA - ROB is internally limited to a value less than 32 V (p-p).
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
RINGER MELODY INPUT AND PIEZO DRIVER (PINS RMI, ROA AND ROB) The input signal at the ringer melody input (pin RMI) may be a square wave or a sine wave which is generated by the microcontroller. The input stage incorporates a small hysteresis (between 0.48VDD and 0.52VDD) and is referenced to 1/2VDD which is also the DC level of the signal coming from the microcontroller. Nevertheless, when a sine wave is used, a coupling capacitor of 10 nF (connected between pin RMI and the output of the microcontroller) is required. This 10 nF capacitor value is enough since the RMI input impedance is approximately 250 k. The piezo driver is an output stage for a piezo transducer which has to be connected between ringer output A and ringer output B (pins ROA and ROB) as a Bridged Tied Load (BTL) or between ROA and VSS as a Single-Ended Load (SEL). The ROA and ROB output signals are square wave and in opposite phase driven by the ringer melody input stage. The minimum output current capability of the ROA and ROB outputs is greater than 80 mA at maximum volume setting (RV2 = 1, RV1 = 1, RV0 = 1) and becomes even greater during output switching. This gives fast rise and fall times resulting in a lot of harmonics. To obtain maximum efficiency, the piezo driver stage is supplied in series with the VDD supply. REFERENCE The bias current for the various ringer blocks is generated by the reference block while this block is supplied from pin VRR or VDD.
UBA1702; UBA1702A
Supply part (pins VBB and VDD) The supply block regulates the voltage at pin VDD, referenced to VSS, to a typical value of 3.3 V and can deliver a minimum of 2 mA. This is sufficient to supply most normal microcontrollers. The voltage at pin VDD must be filtered with a 22 µF capacitor connected between pins VDD and VSS. In speech mode, this block is supplied from the transmission circuit using pin VBB. The voltage drop between VBB and VDD has been minimized (100 mV at 1 mA, providing 2.5 V < VBB < 3.0 V) in order to allow low voltage operation of the transmission circuit. In ringer mode, this block is supplied from the ringer part using pin VRR and pin VBB which are tied together through an internal diode (see Fig.1). When an external (mains or battery) supply is connected to VBB and no speech or ringer signal is applied, VDD (3.3 V) is still present. During on-hook phase, and when a small current is derived from the line to the microcontroller supply, the circuit stays in a kind of stand-by mode to provide sufficient voltage at pin VDD. This is done to ensure memory retention in the microcontroller.
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VSDI, VSDO VEHI Vi(max) Vn(max) ISPI(max) IRPI(max) Ptot PARAMETER maximum input/output switch driver voltage (pins SDI or SDO) maximum hook switch input voltage (pin EHI) maximum voltage at all logic inputs (pins DPI, MSI, RV0, RV1, RV2 and RMI) maximum voltage at all other pins maximum speech part input current (pin SPI) maximum ringer part input current (pin RPI) total power dissipation UBA1702 UBA1702T Tstg Tamb Notes 1. Continuous. 2. 2 kV surge: IC storage temperature operating ambient temperature Tamb = 75 °C CONDITIONS DC; note 1 pulsed; note 2 DC; note 1 pulsed; note 2
UBA1702; UBA1702A
MIN. - - - - VSS - 0.4 - - - - - -40 -25
MAX. 240 400 240 400 VDD + 0.4 24 150 70 1 0.625 +150 +75 V V V V V V
UNIT
mA mA W W °C °C
a) according to IEC 805-1 part 5. Test generator 10 µs/700 µs according to CCITT (Rm1 = 15 and Rm2 = 25 ). b) pulse sequence > 60 s. c) number of surges: 10. d) polarity change after 5 surges. e) test circuit in combination with 150 V Voltage Dependent Resistor (VDR) and a 3.9 resistor connected in series with the source of the PMOST interrupter (UBA1702). THERMAL CHARACTERISTICS SYMBOL Rth j-a UBA1702, UBA1702A UBA1702T, UBA1702AT PARAMETER thermal resistance from junction to ambient in free air 45 70 K/W K/W VALUE UNIT
1997 Sep 29
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
UBA1702; UBA1702A
CHARACTERISTICS Speech part: lline = 20 mA; DPI = LOW; Tamb = 25 °C; VEE = 0 V; unless otherwise specified. Ringer part: Vline(rms) = 45 V; f = 25 Hz; using an RC combination of 2.2 k and 820 nF and a diode bridge between the line and the RPI input. SYMBOL Speech Part SWITCH DRIVER AND REFERENCES (PINS SDI, SDO, EHI AND DPI); UBA1702 ONLY IEE VSDO IEE RSDO ISDO(max) ISS VSDI-SDO RSDI-SDO RSDI VEE current consumption switch driver output voltage VSPO = 4.2 V VSDI < 12 V - - - - 7.0 - - VSDI - VSDO < 12 V VSDI = VEHI = 48 V; DPI = HIGH VSDI = VEHI = 240 V; DPI = HIGH REHI resistance between pins EHI and VEE VEHI = 4.2 V VEHI = 48 V VEHI = 240 V ZSPO ZVSS VIH VIL IIH IIL VIH VIL IIH IIL impedance between pins SPO and VEE impedance between pins VSS and VEE HIGH-level input voltage (pin EHI) LOW-level input voltage (pin EHI) HIGH-level input current (pin EHI) LOW-level input current (pin EHI) HIGH-level input voltage (pin DPI) LOW-level input voltage (pin DPI) HIGH-level input current (pin DPI) LOW-level input current (pin DPI) VDPI = HIGH VDPI = LOW VEHI = 4.2 V VEHI = LOW f = 0.3 to 3.4 kHz f = 0.3 to 3.4 kHz - - 5 170 - - 20 10 VSS 0 - VSS 0 - -330 - -510 2.2 - -280 14 1.1 4 20 420 740 3.5 - - - 10 0 - - 0 - 0.2 - - - - - - - - - - - - - 240 20 - VDD 10 - µA V µA k mA µA V M M M k k M k k V µA µA V µA µA PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
SWITCH DRIVER AND REFERENCES (PINS SDI, SDO, EHI AND DPI); UBA1702A ONLY VEE current consumption; excluding PNP VSDO = 4.2 V interrupter base current resistance between pins SDO and VEE maximum input current (pin SDO)
SWITCH DRIVER AND REFERENCES (PINS SDI, SDO, EHI AND DPI); UBA1702 AND UBA1702A VSS current consumption internal voltage limitation between pins SDI and SDO resistance between pins SDI and SDO resistance between pins SDI and VEE VSPO = 4.2 V; note 1
VSS + 1.5 -
VSS + 0.3 V
VSS + 1.5 -
VSS + 0.3 V
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
UBA1702; UBA1702A
SYMBOL
PARAMETER
CONDITIONS - -
MIN.
TYP.
MAX.
UNIT
MUTE SWITCH AND ZENER PROTECTION (PINS MSI, MSA AND ZPA) VSPO(M) adjustable mute voltage referenced to VEE MSI = HIGH; MSA open-circuit MSI = HIGH; MSA shorted to SPO VSPO(Z) adjustable zener voltage referenced to VEE MSI = LOW; ZPA open-circuit MSI = LOW; ZPA shorted to SPO MSI = LOW; ZPA shorted to VEE ISPI VIH VIL IIH IIL ISPI(lim) ISPI(det) RSPI-SPO IOH IOL VDD VDD/T IDD VBB-VDD VDDM current capability (pin SPI) HIGH-level input voltage (pin MSI) LOW-level input voltage (pin MSI) HIGH-level input current (pin MSI) LOW-level input current (pin MSI) VMSI = HIGH VMSI = LOW CLA open-circuit CLA shorted to VEE current detection (pin SPI) series resistance between pins SPI and SPO HIGH level output current (pin CDO) LOW level output current (pin CDO) VCDO = VDD - 0.5 V VCDO = VSS + 0.5 V VBB > 3.7 V; IDD = -1 mA CDA open-circuit 2.7 1.7 12.0 9.0 18.0 - - - - 0 3 - 13.0 9.7 19.6 - VDD 10 - - - 4 - -100 - 3.6 - -2 - - V V V V V mA V µA µA mA mA mA µA µA V mV/K mA mV V
11.0 8.3 16.4 150 0.7VDD VSS 0 - - - 2 - - 100
VSS + 0.3 V
CURRENT MANAGEMENT (PINS SPI, SPO, CDA, CLA AND CDO) current limitation (pin SPI) 45 120 3 2 - - 3.3 -0.2 - 100 1.4
MICROCONTROLLER SUPPLY (PINS VDD AND VBB) supply output voltage referenced to VSS supply output voltage temperature gradient supply output current capability voltage drop between VBB and VDD voltage at pin VDD when neither speech nor ringer signal is applied VBB > 3.7 V IDD = -1 mA; 2.5 V < VBB < 3.0 V IDD = 9 µA 3.0 - - - -
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
UBA1702; UBA1702A
SYMBOL Ringer part PROTECTION (PIN RPI) ISS IRPI(max) VRPI VRPId ZRPI
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
current consumption maximum input current voltage limit referenced to VEE voltage limit in DMO or NSA mode referenced to VEE AC input impedance referenced to VEE
RV2 = 0; RV1 = 0; RV0 = 0
- 70 -
-850 - 21 2.1 220
- - - - -
µA mA V V k
IRPI = 30 mA; MSI = HIGH f = 0.3 to 3.4 kHz; VRPI < 1.5 V (RMS) RTA open-circuit;
- 100
RINGER THRESHOLD AND FREQUENCY DETECTION (PINS VRR, RTA AND RFO) VRRth VRRhys VRPIhys IOH IOL G ringer supply threshold voltage referenced to VSS ringer threshold hysteresis voltage ringer frequency detection hysteresis voltage referenced to VEE HIGH-level output current (pin RFO) LOW-level output current (pin RFO) RFO = HIGH RFO = LOW VRFO = VDD - 0.5 V VRFO = VSS + 0.5 V (RV2, RV1, RV0) from (0, 0, 0) to (1 ,1, 0); note 2 (RV2, RV1, RV0) from (0, 0, 0) to (1, 1, 0); note 2 (RV2, RV1, RV0) from (1, 1, 0) to (1, 1, 1); note 3 - - - - - 100 - 11 6.5 VRR VDD - - 36 - - - - -100 - - V V V V µA µA dB
VOLUME CONTROL (PINS RV0, RV1 AND RV2) gain adjustment range
Gs
step resolution
-
6
-
dB
Gls
last step resolution
-
9.5
12
dB
VIH VIL IIH IIL
HIGH-level input voltage (pins RVx) LOW-level input voltage (pins RVx) HIGH-level input current (pins RVx) LOW-level input current (pins RVx) VRVx = HIGH VRVx = LOW
0.7VDD VSS 0 0
- - - -
VDD 0.3VDD 5 5
V V µA µA
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Philips Semiconductors
Product specification
Line interrupter driver and ringer
UBA1702; UBA1702A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. - - - - 0.15 9.6 28.7 -
MAX.
UNIT
RINGER MELODY INPUT AND PIEZO DRIVER (PINS RMI, ROA AND ROB) VIH VIL IIH IIL Vo(min p-p) Vo(p-p) HIGH-level input voltage (pin RMI) LOW-level input voltage (pin RMI) HIGH-level input current (pin RMI) LOW-level input current (pin RMI) minimum output voltage between pins ROA and ROB (peak-to-peak value) output voltage between pins ROA and ROB (peak-to-peak value) VRMI = HIGH VRMI = LOW RV2 = 0; RV1 = 0; RV0 = 0 RV2 = 1; RV1 = 1; RV0 = 0 RV2 = 1; RV1 = 1; RV0 = 1 sink and source; RV2 = 1; RV1 = 1; RV0 = 1 IDD = -1 mA 0.52VDD VSS 0 -10 - - - 80 VDD 0.48VDD 10 0 - - 32 - V V µA µA V V V mA
Vo(max p-p) maximum output voltage between pins ROA and ROB (peak-to-peak value) |IRO| ROA or ROB output current capability
REGULATED MICROCONTROLLER SUPPLY (PIN VDD) VDD VDD/T IDD Notes 1. ISS has no influence on AGC characteristics of the TEA106x transmission circuit when VSS is connected to the SLPE pin of TEA106x. 2. Independent of VRR if greater than 10 V. 3. Without piezo transducer, dependent on VRR. supply output voltage referenced to VSS supply output voltage temperature gradient supply output current capability 3.0 - - 3.35 0 - 3.6 - -2 V mV/K mA
1997 Sep 29
14
UBA1702; UBA1702A
Product specification
Fig.4 Test circuit.
handbook, full pagewidth
1997 Sep 29
RCDA RRTA RTA SP0 VBB VRR VDD VSS VEE RV1 RV2 RF0 CD0 MSI DPI VBB CVRR 22 µF CVDD 22 µF 20 VSPO 4.2 V CLA CDA MSA ZPA SPI SDO SDI EHI RPI ROA CRO ROB RMI RV0 80 nF
Philips Semiconductors
TEST AND APPLICATION INFORMATION
Line interrupter driver and ringer
Rring
UBA1702 UBA1702A
15
2.2 k
Cring
820 nF
BRIDGE 4 x BAS11
Vline 45 V (RMS)
240 V
MBE750
UBA1702; UBA1702A
Product specification
Fig.5 Simplified basic application of the UBA1702 with the TEA106x.
handbook, full pagewidth
1997 Sep 29
CLA CDA MSA ZPA RTA Rprot M1 BSP254 3.9 SDO SDI VRR CVRR 22 µF SPI VBB VCC D1 BAT85 R1 620 LN SP0
Philips Semiconductors
double hook switch
820 nF 2.2 k
a/b
Cring
Rring
TEA106X
PD VEE SLPE C1 100 µF
Line interrupter driver and ringer
UBA1702
CVDD 22 µF VDD VSS VEE DPI
b/a RPI buzzer RMI RVO RV1 RV2 RFO CDO MSI ROA ROB
BRIDGE BOD 4 x BAS11 BR211-240 EHI
R9 20
16
MDT RV0 XTAL1 3.58 MHz RV1 RV2 CE T1 NSA DP VDD
PCD33xx
XTAL2
VSS
MBE746
UBA1702; UBA1702A
Product specification
Fig.6 Simplified basic application of the UBA1702 with the TEA1064A.
handbook, full pagewidth
1997 Sep 29
CLA CDA MSA ZPA RTA Rprot M1 BSP254 3.9 SDO SDI VRR CVRR SPI VBB D1 BAT85 R16 390 R1 620 VCC2 LN VCC1 SP0
Philips Semiconductors
double hook switch
820 nF 2.2 k
a/b
Line interrupter driver and ringer
Cring
Rring
UBA1702
CVDD VDD VSS VEE RV1 RV2 RF0 CD0 MSI DPI 22 µF
22 µF
TEA1064A
C15 220 µF PD VEE SLPE C1 100 µF
b/a RPI buzzer RMI RV0 ROA ROB
BOD BR211-240
BRIDGE 4 x BAS11 EHI
17
MDT RV0 XTAL1 3.58 MHz RV1 RV2 CE T1 NSA DP VDD
R9 20
PCD33xx
XTAL2
VSS
MBE747
UBA1702; UBA1702A
Product specification
Fig.7 Simplified basic application of the UBA1702A with the TEA106x.
handbook, full pagewidth
1997 Sep 29
TP1 MPSA92 SPI VBB CVRR VRR VCC D1 BAT85 R1 620 LN CLA CDA MSA ZPA RTA SP0 SDO SDI
Philips Semiconductors
double hook switch
820 nF 2.2 k
a/b
Cring
Rring
UBA1702A
CVDD VDD VSS VEE RV1 RV2 RF0 CD0 MSI DPI 22 µF
22 µF
TEA106X
PD VEE SLPE C1 100 µF R9 20
Line interrupter driver and ringer
BRIDGE BOD 4 x BAS11 BR211-240 EHI RPI buzzer RMI RV0 ROA ROB
b/a
18
MDT RV0 XTAL1 3.58 MHz RV1 RV2 CE T1 NSA DP VDD
PCD33xx
XTAL2
VSS
MBE748
handbook, full pagewidth
1997 Sep 29
CLA CDA MSA ZPA RTA Rprot M1 BSP254 BRIDGE 4 x BAS11 a/b BOD BR211-240 b/a 1.8 µF 1.8 µF 2.2 k D4 buzzer D5 3.3 V CRMI 10 nF BRIDGE 4 x BAS11 EHD MHD EHT XTAL1 3.58 MHz XTAL2 RV0 RV1 RV2 CE T1 TONE VDD Loudspeaking SUP LSP1 speaker-phone button D2 3.9 SPI SP0 VBB CVRR 22 µF VRR D1 BAT85 R1 620 LN VCC QR SDO SDI cradle D3 EHI VDD RPI ROA ROB RMI RV0 RV1 RV2 RF0 CD0 MSI VSS VEE DPI
Philips Semiconductors
Line interrupter driver and ringer
TEA106x
CVDD 22 µF DTMF VEE C1 100 µF SLPE
UBA1702
100 nF
R9 20
19
PCD33xx
TEA1093 RIN
LSP2 GND
VSS
UBA1702; UBA1702A
MHD: Mechanical Hook switch Detection EHD: Electronic Hook switch Detection EHT: Electronic Hook switch Take-over
MBE749
Product specification
Fig.8 Simplified proposal for electronic hook switch application of the UBA1702 in combination with a transmission and a hands-free circuit.
Philips Semiconductors
Product specification
Line interrupter driver and ringer
PACKAGE OUTLINES
handbook, plastic dual in-line package; 28 leads (600 mil) DIP28: full pagewidth
UBA1702; UBA1702A
SOT117-1
seating plane
D
ME
A2
A
L
A1 c Z e b1 b 28 15 MH w M (e 1)
pin 1 index E
1
14
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT117-1 REFERENCES IEC 051G05 JEDEC MO-015AH EIAJ EUROPEAN PROJECTION A max. 5.1 0.20 A1 min. 0.51 0.020 A2 max. 4.0 0.16 b 1.7 1.3 0.066 0.051 b1 0.53 0.38 0.020 0.014 c 0.32 0.23 0.013 0.009 D (1) 36.0 35.0 1.41 1.34 E (1) 14.1 13.7 0.56 0.54 e 2.54 0.10 e1 15.24 0.60 L 3.9 3.4 0.15 0.13 ME 15.80 15.24 0.62 0.60 MH 17.15 15.90 0.68 0.63 w 0.25 0.01 Z (1) max. 1.7 0.067
ISSUE DATE 92-11-17 95-01-14
1997 Sep 29
20
Philips Semiconductors
Product specification
Line interrupter driver and ringer
UBA1702; UBA1702A
SO28: plastic small outline package; 28 leads; body width 7.5 mm
SOT136-1
D
E
A X
c y HE v M A
Z 28 15
Q A2 A1 pin 1 index Lp L 1 e bp 14 w M detail X (A 3) A
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 2.65 0.10 A1 0.30 0.10 A2 2.45 2.25 A3 0.25 0.01 bp 0.49 0.36 c 0.32 0.23 D (1) 18.1 17.7 0.71 0.69 E (1) 7.6 7.4 0.30 0.29 e 1.27 0.050 HE 10.65 10.00 L 1.4 Lp 1.1 0.4 Q 1.1 1.0 0.043 0.039 v 0.25 0.01 w 0.25 0.01 y 0.1 0.004 Z
(1)
0.9 0.4 0.035 0.016
0.012 0.096 0.004 0.089
0.019 0.013 0.014 0.009
0.419 0.043 0.055 0.394 0.016
8 0o
o
Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. OUTLINE VERSION SOT136-1 REFERENCES IEC 075E06 JEDEC MS-013AE EIAJ EUROPEAN PROJECTION
ISSUE DATE 95-01-24 97-05-22
1997 Sep 29
21
Philips Semiconductors
Product specification
Line interrupter driver and ringer
SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used. This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our "IC Package Databook" (order code 9398 652 90011). DIP SOLDERING BY DIPPING OR BY WAVE The maximum permissible temperature of the solder is 260 °C; solder at this temperature must not be in contact with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg max). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. REPAIRING SOLDERED JOINTS Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 °C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 °C, contact may be up to 5 seconds. SO REFLOW SOLDERING Reflow soldering techniques are suitable for all SO packages. Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement.
UBA1702; UBA1702A
Several techniques exist for reflowing; for example, thermal conduction by heated belt. Dwell times vary between 50 and 300 seconds depending on heating method. Typical reflow temperatures range from 215 to 250 °C. Preheating is necessary to dry the paste and evaporate the binding agent. Preheating duration: 45 minutes at 45 °C. WAVE SOLDERING Wave soldering techniques can be used for all SO packages if the following conditions are observed: · A double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. · The longitudinal axis of the package footprint must be parallel to the solder flow. · The package footprint must incorporate solder thieves at the downstream end. During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. Maximum permissible solder temperature is 260 °C, and maximum duration of package immersion in solder is 10 seconds, if cooled to less than 150 °C within 6 seconds. Typical dwell time is 4 seconds at 250 °C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. REPAIRING SOLDERED JOINTS Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 °C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 °C.
1997 Sep 29
22
Philips Semiconductors
Product specification
Line interrupter driver and ringer
DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
UBA1702; UBA1702A
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale
1997 Sep 29
23
Philips Semiconductors a worldwide company
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For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 © Philips Electronics N.V. 1997
Internet: http://www.semiconductors.philips.com
SCA55
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
417027/1200/03/pp24
Date of release: 1997 Sep 29
Document order number:
9397 750 02514