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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