MAX19700

19-3826; Rev 1; 6/07 KIT ATION EVALU E L B AVAILA 10-Bit, 45Msps, Ultra-Low-Power Analog Front-End Features ♦ Dual, 10-Bit, 45Msps Rx ADC and Dual, 10-Bit, 45Msps Tx DAC ♦ Ultra-Low Power 84.6mW at fCLK = 45MHz, Fast Mode 77.1mW at fCLK = 45MHz, Slow Mode Low-Current Standby and Shutdown Modes ♦ Programmable Tx DAC Common-Mode DC Level and I/Q Offset Trim ♦ Excellent Dynamic Performance SNR = 54.2dB at fIN = 5.5MHz (Rx ADC) SFDR = 73.2dBc at fOUT = 2.2MHz (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 ±0.03° Phase, ±0.01dB Gain (Rx ADC) at fIN = 5.5MHz ♦ Multiplexed Parallel Digital I/O ♦ 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) General Description The MAX19707 is an ultra-low-power, mixed-signal analog front-end (AFE) designed for power-sensitive communication equipment. Optimized for high dynamic performance at ultra-low power, the device integrates a dual, 10-bit, 45Msps receive (Rx) ADC; dual, 10-bit, 45Msps 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. The typical operating power in Tx-Rx FAST mode is 84.6mW at a 45MHz clock frequency. The Rx ADCs feature 54.2dB SNR and 71.2dBc SFDR at fIN = 5.5MHz and fCLK = 45MHz. The analog I/Q input amplifiers are fully differential and acce...