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MAX19710

MAX19710

10-Bit, 7.5Msps, Full-Duplex, Analog Front-End

Ultra-Low Power AFE with Integrated Tx DACs, Rx ADCs, and Auxiliary Control Data Converters

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Overview

Description

The MAX19710 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, 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. The typical operating power in FD mode is 30mW at a 7.5MHz clock frequency.

The Rx ADCs feature 54.8dB SINAD and 79.8dBc SFDR at 3.3MHz input frequency with a 7.5MHz 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 ±0.01dB gain.

The Tx DACs feature 73.8dBc SFDR at fOUT = 620kHz and fCLK = 7.5MHz. The analog I-Q full-scale output voltage range is ±400mV differential. The output DC common- mode voltage is from 0.89V to 1.36V. The I/Q channel offset is adjustable to optimize radio lineup sideband/ carrier suppression. Typical I-Q channel matching is ±0.01dB gain and ±0.15° phase.

Two independent 10-bit parallel, high-speed digital buses used by the Rx ADC and Tx DAC allow full-duplex operation for frequency-division duplex applications. The Rx ADC and Tx DAC can be disabled independently to optimize power management. A 3-wire serial interface controls power-management modes, the aux-DAC channels, and the aux-ADC channels.

The MAX19710 operates on a single 2.7V to 3.3V analog supply and 1.8V to 3.3V digital I/O supply. The MAX19710 is specified for the extended (-40°C to +85°C) temperature range and is available in a 56-pin, thin QFN package. The Selector Guide at the end of the data sheet lists other pin-compatible versions in this AFE family. For time-division duplex (TDD) applications, refer to the MAX19705–MAX19708 AFE family of products.

MAX19710: Typical Operating Circuit MAX19710: Typical Operating Circuit Enlarge+

Key Features

  • Dual 10-Bit, 7.5Msps Rx ADC and Dual 10-Bit, 7.5Msps Tx DAC
  • Ultra-Low Power
    30mW at fCLK = 7.5MHz, FD Mode
    21.3mW at fCLK = 7.5MHz, Slow Rx Mode
    21.9mW at fCLK = 7.5MHz, 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 = 54.9dB at fIN = 3.3MHz (Rx ADC)
    SFDR = 73.8dBc at fOUT = 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, ±0.01dB Gain (Rx ADC) at fIN = 1.8MHz
  • 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)

    • Applications/Uses

    • Broadband Access Radio
    • Portable Communication Equipment
    • Private Mobile Radio

    Design Resources


    MAX19710EVCMODU: Evaluation Kits/Evaluation Systems for the MAX19710, MAX19712, and MAX19713
    MAX19710EVKIT: Evaluation Kits/Evaluation Systems for the MAX19710, MAX19712, and MAX19713
    MAX19711EVCMODU: Evaluation Kits/Evaluation Systems for the MAX19710, MAX19712, and MAX19713
    MAX19711EVKIT: Evaluation Kits/Evaluation Systems for the MAX19710, MAX19712, and MAX19713
    MAX19712EVCMODU: Evaluation Kits/Evaluation Systems for the MAX19710, MAX19712, and MAX19713
    MAX19712EVKIT: Evaluation Kits/Evaluation Systems for the MAX19710, MAX19712, and MAX19713
    MAX19713EVCMODU: Evaluation Kits/Evaluation Systems for the MAX19710, MAX19712, and MAX19713
    MAX19713EVKIT: Evaluation Kits/Evaluation Systems for the MAX19710, MAX19712, and MAX19713

    Quality And Environmental

    Request Reliability Report for: MAX19710 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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