ATR0797

www.DataSheet4U.com Features Gain Control in 20-dB Steps Very Low I/Q Amplitude and Phase Errors High Input P1dB Small and Optimized Package for High Reliability and Performance Applications Infrastructure Digital Communication Systems GSM/Cellular Transceivers ISM Band Transceivers Benefits Fully Integrated Device with Reduced External Component Count 65 - 300 MHz SiGe IF Receiver/ Demodulator ATR0797 Electrostatic sensitive device. Observe precautions for handling. Description The ATR0797 is a multi-purpose demodulator RFIC. The silicon monolithic integrated circuit is designed with Atmel’s advanced SiGe technology. This demodulator is capable of both quadrature demodulation or direct IF output. Features include switchable gain control on a frequency range from 65 MHz to 300 MHz. The device performs a very low amplitude as well as phase error and allows high input P1dB. The ATR0797 targets a variety of system applications for communications including 3G wireless. Figure 1. Block Diagram GC1 5 GC2 4 2 1 BBIP BBIN IFP IFN 8 9 ϕ 16 15 13 12 BBQP BBQN LOP LON Rev. 4665D–SIGE–08/04 DataSheet 4 U .com www.DataSheet4U.com Pin Configuration Figure 2. Pinning BBIN BBIP VCC GC2 GC1 GND VCC IFP 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 BBQP BBQN VCC LOP LON GND VCC IFN Pin Description Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol BBIN BBIP VCC GC2 GC1 GND VCC IFP IFN VCC GND LON LOP VCC BBQN BBQP Function Baseband I-axis negative output, self biasing...