General Description

The MAX19713 is an ultra-low-power, highly integrated mixed-signal analog front-end (AFE) ideal for wideband communication applications operating in full-duplex (FD) mode. Optimized for high dynamic performance and 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 FD mode is 91.8mW at a 45MHz clock frequency.

The Rx ADCs feature 54dB SINAD and 72.2dBc SFDR at 5.5MHz input frequency with a 45MHz 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 ±0.03 phase and ±0.02dB gain.

Features

● Dual 10-Bit, 45Msps Rx ADC and Dual 10-Bit,

   45Msps Tx DAC

● Ultra-Low Power

   • 91.8mW at fCLK = 45MHz, FD Mode

   • 79.2mW at fCLK = 45MHz, Slow Rx Mode

   • 49.5mW at fCLK = 45MHz, Slow Tx Mode

   • Low-Current Standby and Shutdown Modes

● Programmable Tx DAC Common-Mode DC Level

   and I/Q Offset Trim

● Excellent Dynamic Performance

   • SNR = 54.1dB at fIN = 5.5MHz (Rx ADC)

   • SFDR = 70.3dBc 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, ±0.02dB 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 56-Pin TQFN Package

   (7mm x 7mm x 0.8mm)

Applications

● WiMAX CPEs

● 801.11a/b/g WLAN

● VoIP Terminals

● Portable Communication Equipment