MAX19706 Datasheet | Maxim Integrated

19-3867; Rev 0; 10/05 KIT ATION EVALU E L B A AVAIL 10-Bit, 22Msps, Ultra-Low-Power Analog Front-End General Description Features - Dual, 10-Bit, 22Msps Rx ADC and Dual, 10-Bit, 22Msps Tx DAC - Ultra-Low Power 49.5m W at f CLK = 22MHz, Fast Mode 39.3m W at f CLK = 22MHz, Slow Mode Low-Current Standby and Shutdown Modes - Programmable Tx DAC mon-Mode DC Level and I/Q Offset Trim - Excellent Dynamic Performance SNR = 54.6d B at f IN = 5.5MHz (Rx ADC) SFDR = 72.6d Bc at f OUT = 2.2MHz (Tx DAC) - Three 12-Bit, 1µs Aux-DACs - 10-Bit, 333ksps Aux-ADC with 4:1 Input Mux and Data Averaging Mode - Excellent Gain/Phase Match ±0.12° Phase, ±0.01d B Gain (Rx ADC) at f IN = 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) The MAX19706 is an ultra-low-power, mixed-signal analog front-end (AFE) designed for power-sensitive munication equipment. Optimized for high dynamic performance at ultra-low power, the device integrates a dual, 10-bit, 22Msps receive (Rx) ADC; dual, 10-bit, 22Msps 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 49.5m W at a 22MHz clock frequency. The Rx ADCs feature 54.6d B SNR and 75.6d Bc SFDR at a 5.5MHz input frequency with a 22MHz clock frequency. The analog I/Q input amplifiers are fully differential and accept 1.024VP-P full-scale signals. Typical I/Q channel matching is ±0.12° phase and ±0.01d B gain. The Tx DACs feature 72.6d Bc SFDR at f OUT = 2.2MHz and f CLK = 22MHz. The analog I/Q full-scale output voltage is ±400m V differential. The Tx DAC mon-mode DC level is programmable from 0.9V to 1.35V. The I/Q channel offset is adjustable. The typical I/Q channel matching is ±0.02d B gain and ±0.1° phase. The Rx ADC and Tx DAC share a single, 10-bit parallel,...