FEATURES
24 dB Gain 4 dB Noise Figure Easy Match to SAW Filters Output Limiter Adjustable +8.5 dBm to +12 dBm 700 MHz Bandwidth 10 V Single or Dual 5 V Power Supply 300 mW Power Dissipation APPLICATIONS
ADC IF Drive Amp Communications Receivers PCS/Cellular Base Stations GSM, CDMA, TDMA Differential, Low Noise IF Gain Block with Output Clamping AD6630 FUNCTIONAL BLOCK DIAGRAM NC 1 NC 2 IP2 3 IP1 4 IP1 5 IP2 6 CLLO 7 CLHI 8 NC = NO CONNECT + + + AD6630 16 15 14 13 12 11 10 9 VCC CD1 OP VEE CMD OP CD2 VCC PRODUCT DESCRIPTION
Taking advantage of the differential nature of SAW filters, the AD6630 has been designed as a differential in/differential out gain block. The AD6630 provides output limiting for ADC and SAW protection with Ͻ10° phase variation in recovery from overdrive situations. Designed for “narrow-band” cellular/PCS receivers, the high linearity and low noise performance of the AD6630 allows for implementation in a wide range of applications ranging from GSM to CDMA to AMPS. The clamping circuitry also maintains the phase integrity of an overdriven signal.
Analog Devices
