Philips Semiconductors TDA9901 free download

File name TDA9901.pdf

INTEGRATED CIRCUITS DATA SHEET TDA9901 Wideband differential digital controlled variable gain amplifier Product specification Supersedes data of 1998 Apr 15 File under Integrated Circuits, IC02 1999 Oct 08 Philips Semiconductors Product specification Wideband differential digital controlled variable gain amplifier FEATURES · 130 MHz, -3 dB small signal bandwidth · Digitally controlled gain · TTL/CMOS compatible digital inputs (3.3 or 5 V) · TTL single ended or differential clock input with PECL compatibility · 24 dB gain control range · Five steps of 6 dB plus 6 dB fixed gain · 30 dB gain maximum · High impedance differential inputs · Low impedance differential outputs · High power supply rejection · 125 nV/Hz output voltage noise density at 30 dB gain · Fast gain settling · Dual control modes: transparent or latched. APPLICATIONS · Linear AGC systems · IF amplifier in IF conversion systems (e.g. base stations or satellite receivers) · Instrumentation · Multi-purpose amplifier · Driver for differential ADCs (e.g. TDA8768). QUICK REFERENCE DATA SYMBOL VDDA VDDD IDDA IDDD Gdif B-3dB Ptot PARAMETER analog supply voltage digital supply voltage analog supply current digital supply current differential gain -3 dB small signal bandwidth total power dissipation minimum gain maximum gain Vo(dif)(p-p) = 0.125 V; Tamb = 25 °C CONDITIONS MIN. 4.75 3.0 - - 5.7 29.3 110 - TYP. 5.0 3.3 30 3.0 6.11 30.5 130 160 GENERAL DESCRIPTION TDA9901 The TDA9901 is a wideband, low noise amplifier with differential inputs and outputs. The TDA9901 incorporates an AGC function with digital control. The TDA9901 is optimized for fast switching between different gain settings, preserving small phase and amplitude error. The TDA9901 presents an excellent combination of low noise and good linearity for a wide input frequency range. The TDA9901 is optimized for processing IF signals in GSM base stations. It is also suited for many other applications as a general purpose digitally controlled variable gain amplifier. The TDA9901 is able to operate from 4.75 to 5.25 V supply for the analog part and from 3.0 to 5.25 V for the digital part. MAX. 5.25 5.25 36 5.0 6.46 31.5 - 216 V V UNIT mA mA dB dB MHz mW ORDERING INFORMATION TYPE NUMBER TDA9901TS PACKAGE NAME SSOP20 DESCRIPTION plastic shrink small outline package; 20 leads; body width 4.4 mm VERSION SOT266-1 1999 Oct 08 2 Philips Semiconductors Product specification Wideband differential digital controlled variable gain amplifier BLOCK DIAGRAM TDA9901 handbook, full pagewidth VDDD TE 18 2 GRAY2 19 GRAY1 20 GRAY0 CLK CLKN VSSD 1 3 4 17 DECODER LATCHES TDA9901 IN INN 6 7 0, 6, 12, 18 or 24 dB 5 REFERENCE GENERATOR 11 VDDA 8, 9, 10, 13 n.c. 6 dB REFERENCE GENERATOR 12 MGM962 15 14 OUT OUTN CMVGA 16 CMADC VSSA Fig.1 Block diagram. 1999 Oct 08 3 Philips Semiconductors Product specification Wideband differential digital controlled variable gain amplifier PINNING SYMBOL GRAY0 TE CLK CLKN CMVGA IN INN n.c.