General Description
The MAX19711 is an ultra-low-power, highly integrated mixed-signal analog front-end (AFE) ideal for CDMA communication applications operating in full-duplex (FD) mode. Optimized for high dynamic performance and ultra-low power, the device integrates a dual 10-bit, 11Msps receive (Rx) ADC; dual 10-bit, 11Msps transmit (Tx) DAC with CDMA baseband filters; three fast-settling 12-bit aux-DAC channels for ancillary RF front-end control; and a 10-bit, 333ksps housekeeping aux-ADC. The typical operating power in FD mode is 37.5mW/42.7mW at a 4.915MHz/11MHz clock frequency.

Features
♦ Dual 10-Bit, 11Msps Rx ADC and Dual 10-Bit,
   11Msps Tx DAC
♦ Ultra-Low Power
   37.5mW/42.7mW at fCLK = 4.915MHz/11MHz,
   FD Mode
   24.3mW at fCLK = 11MHz, Slow Rx Mode
   34.5mW at fCLK = 11MHz, Slow Tx Mode
   Low-Current Standby and Shutdown Modes
♦ Integrated CDMA Filters with > 64dBc Stopband
   Rejection
♦ Programmable Tx DAC Common-Mode DC Level
   and I/Q Offset Trim
♦ Excellent Dynamic Performance
   SNR = 54.8dB at fIN = 1.875MHz (Rx ADC)
   SFDR = 75dBc at fOUT = 620kHz (Tx DAC)
♦ Three 12-Bit, 1µs Aux-DACs
♦ 10-Bit, 333ksps Aux-ADC with 4:1 Input Mux and
   Data Averaging
♦ Excellent Gain/Phase Match
   ±0.01° Phase, ±0.01dB Gain (Rx ADC) at
   fIN = 1.87MHz
♦ Multiplexed Parallel Digital I/O
♦ Serial-Interface Control
♦ Versatile Power-Control Circuits
   Shutdown, Standby, Idle, Tx/Rx Disable
♦ Miniature 56-Pin Thin QFN Package
   (7mm x 7mm x 0.8mm)

Applications
   CDMA Handsets
   CDMA Data Cards
   Portable Communication Equipment