Maxim Integrated MAX19705ETM

Description
The MAX19705 is an ultra-low-power, mixed-signal analog front-end (AFE) designed for power-sensitive communication equipment. It integrates a dual 10-bit, 7.5Msps receive (Rx) ADC; dual 10-bit, 7.5Msps transmit (Tx) DAC; three fast-settling 12-bit aux-DAC channels for ancillary RF front-end control; and a 10-bit, 333ksps housekeeping aux-ADC.

Features
Dual 10-Bit, 7.5Msps Rx ADC and Dual 10-Bit, 7.5Msps Tx DAC
Ultra-Low Power
28.2mW at fCLK = 7.5MHz, Fast Mode
21mW at fCLK 7.5MHz, Slow Mode
Low-Current Standby and Shutdown Modes
Programmable Tx DAC Common-Mode DC Level and I/Q Offset Trim
Excellent Dynamic Performance
SNR 55.1dB at fiN = 1.875MHz (Rx ADC)
SFDR = 77.2dBc at four = 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, ±0.02dB Gain (Rx ADC) at fin = 1.875MHz
Multiplexed Parallel Digital I/Os
Serial-Interface Control
Versatile Power-Control Circuits
Shutdown, Standby, Idle, Tx/Rx Disable
Miniature 48-Pin Thin QFN Package (7mm x 7mm x 0.8mm)

Applications
Broadband Access Radio
Private Mobile Radio (PMR)
Portable Communication Equipment