Philips UBA1707 free download

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INTEGRATED CIRCUITS DATA SHEET UBA1707 Cordless telephone, answering machine line interface Objective specification File under Integrated Circuits, IC03 1997 Nov 07 Philips Semiconductors Objective specification Cordless telephone, answering machine line interface FEATURES Line interface · Low DC line voltage; operates down to 1.2 V (excluding polarity guard) · Voltage regulator with adjustable DC voltage · DC mask for voltage and current regulation · Line current limitation for protection · Electronic hook switch control input · Transmit amplifier with: ­ Symmetrical inputs ­ Fixed gain ­ Large signals handling capability. · Receive amplifier with fixed gain · Transmit and receive amplifiers AGC for line loss compensation. Auxiliary amplifier · Fixed gain. Loudspeaker channel · Dual inputs · Rail-to-rail output stage for single-ended load drive · High output current capability · Dynamic limiter to prevent distortion · Digital volume control · Fixed maximum gain. General purpose switches · Three switches with open-collector. 3-wires serial bus interface Allows to control: · DC mask (voltage or current regulation) · Receive amplifier mute function ORDERING INFORMATION TYPE NUMBER UBA1707T UBA1707TS PACKAGE NAME SO28 SSOP28 DESCRIPTION plastic small outline package; 28 leads; body width 7.5 mm plastic shrink small outline package; 28 leads; body width 5.3 mm · AGC: ­ On/off ­ Slope ­ Istart line current. · Auxiliary amplifier mute function · Loudspeaker channel: ­ Input selection ­ Volume setting ­ Dynamic limiter inhibition ­ Power-down mode. · General purpose switches state · Global power-down mode. Supply UBA1707 Operates with external supply voltage from 3.0 to 5.5 V. APPLICATIONS · Cordless base stations · Answering machines · Mains or battery-powered telephone sets. GENERAL DESCRIPTION The UBA1707 is a BiCMOS integrated circuit intended for use in mains-powered telecom terminals. It performs all speech and line interface functions, DC mask for voltage or current regulation and electronic hook switch control. The device includes an auxiliary amplifier, a loudspeaker channel and general purpose switches. Most of the characteristics are programmable via a 3-wire serial bus interface. VERSION SOT136-1 SOT341-1 1997 Nov 07 2 Philips Semiconductors Objective specification Cordless telephone, answering machine line interface UBA1707 QUICK REFERENCE DATA Iline = 15 mA; VCC = 3.3 V; RSLPE = 10 ; AGC pin connected to GND; Zline = 600 ; ZSET = 619 ; EHI = HIGH; f = 1 kHz; Tamb = 25 °C; bit AGC at logic 1, all other configuration bits at logic 0; measured in test circuit of Fig.17; unless otherwise specified. SYMBOL VCC ICC Iline VLN RREGC PARAMETER operating voltage range current consumption from pin VCC line current operating range DC line voltage DC mask slope in current regulation mode voltage gain transmit amplifier from TXI to LN Gv(trx) gain control range for transmit and receive amplifiers with respect to Iline = 15 mA voltage gain