GENERAL DESCRIPTION

This monolithic 3 V CMOS device is a low power, two-channel, input port with signal conditioning. The receive path is composed of two high performance sigma-delta ADCs with digital filtering. A common bandgap reference feeds the ADCs.

FEATURES

+3 V Supply Voltage

Baseband Serial Port (BSPORT)

Differential IRx and QRx

ADC Channels

Two 15-Bit Sigma-Delta A/D Converters

FIR Digital Filters

64 dB SNR

Output Word Rate 270.83 kHz

Twos Complement Coding

On-Chip Offset Calibration

Power-Down Mode

Auxiliary D/A Converter

Auxiliary Serial Port (ASPORT)

On-Chip Voltage Reference

Low Power

28-Lead TSSOP/28-Lead SOIC

APPLICATIONS

GSM Basestations

Pagers