MAX19712 Datasheet | Maxim Integrated

19-0528; Rev 0; 5/06 KIT ATION EVALU E L B AVAILA 10-Bit, 22Msps, Full-Duplex Analog Front-End General Description Features - Dual 10-Bit, 22Msps Rx ADC and Dual 10-Bit, 22Msps Tx DAC - Ultra-Low Power 50.4m W at f CLK = 22MHz, FD Mode 39.9m W at f CLK = 22MHz, Slow Rx Mode 33.9m W at f CLK = 22MHz, Slow Tx Mode Low-Current Standby and Shutdown Modes - Programmable Tx DAC mon-Mode DC Level and I/Q Offset Trim - Excellent Dynamic Performance SNR = 54.8d B at f IN = 5.5MHz (Rx ADC) SFDR = 72.9d 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 - Excellent Gain/Phase Match ±0.01° 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 56-Pin Thin QFN Package (7mm x 7mm x 0.8mm) The MAX19712 is an ultra-low-power, highly integrated mixed-signal analog front-end (AFE) ideal for wideband munication applications operating in full-duplex (FD) mode. Optimized for high dynamic performance and 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 FD mode is 50.4m W at a 22MHz clock frequency. The Rx ADCs feature 54.7d B SINAD and 75.6d Bc SFDR at 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 ±0.01° phase and ±0.01d B gain. The Tx DACs feature 72.9d Bc SFDR at f OUT = 2.2MHz and f CLK = 22MHz. The analog I-Q full-scale output voltage range is ±400m V differential. The output DC mon-mode voltage is from 0.89V to 1.36V. The I/Q channel offset is adjustable to optimize radio lineup sideband/carrier suppression. Typical...