MAX19710

Obsolete

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

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

Data Sheet (Rev. 0) Product Selection Table

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Overview

Dual 10-Bit, 7.5Msps Rx ADC and Dual 10-Bit, 7.5Msps Tx DAC

Ultra-Low Power

30mW at f_CLK = 7.5MHz, FD Mode

21.3mW at f_CLK = 7.5MHz, Slow Rx Mode

21.9mW at f_CLK = 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 f_IN = 3.3MHz (Rx ADC)

SFDR = 73.8dBc at f_OUT = 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 f_IN = 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)

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 1.024V_P-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 f_OUT = 620kHz and f_CLK = 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.

Applications

Broadband Access Radio
Portable Communication Equipment
Private Mobile Radio

Documentation

Data Sheet 1

MAX19710: 10-Bit, 7.5Msps, Full-Duplex, Analog Front-End Data Sheet (Rev.0) 05/24/2006

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
ADC/DAC Combo Converters 7
MAX19708	Obsolete	10-bit, 11Msps, Ultra-Low-Power Analog Front-End
MAX19705	Obsolete	10-bit, 7.5Msps, Ultra-Low-Power Analog Front-End
MAX19706	Obsolete	10-Bit, 22Msps, Ultra-Low-Power Analog Front-End
MAX19707	PRODUCTION	10-Bit, 45Msps, Ultra-Low-Power Analog Front-End

MAX19711	Obsolete	10-Bit, 11Msps, Full-Duplex, Analog Front-End
MAX19712	Obsolete	10-Bit, 22Msps, Full-Duplex, Analog Front-End
MAX19713	PRODUCTION	10-Bit, 45Msps, Full-Duplex, Analog Front-End

Evaluation Kits

Evaluation Kits/Evaluation Systems for the MAX19710, MAX19712, and MAX19713

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Features and Benefits

ADC/DAC Sampling Rates from 7.5Msps to 45Msps
Low-Voltage and Low-Power Operation
Adjustable-Gain, Low-Speed DAC Buffers
On-Board Clock-Shaping Circuitry
On-Board Level-Translating I/O Drivers
Assembled and Tested
Downloadable Windows 98SE/2000/XP-Compatible Software

Product Details

The MAX19710–MAX19713 evaluation systems (EV systems) consist of MAX19710–MAX19713 evaluation kits (EV kits), a companion Maxim command module (CMODUSB) interface board, and software. Order the complete EV system (see the Ordering Information in the full data sheet) for comprehensive evaluation of the MAX19710–MAX19713 using a personal computer. Order the EV kit if the command module has already been purchased with a previous Maxim EV system, or for custom use in other microcontroller-based (µC) systems.

The MAX19710–MAX19713 EV kits are fully assembled and tested PCBs that contain all the components necessary to evaluate the performance of the MAX19710–MAX19713 analog front-ends (AFEs). These AFEs integrate a dual-receive analog-to-digital converter (Rx ADC), a dual-transmit digital-to-analog converter (Tx DAC), a 1.024V internal voltage reference, three low-speed serial DACs, and one low-speed serial ADC. The EV kit boards accept AC- or DC-coupled, differential or single-ended analog inputs for the Rx ADC and include circuitry that converts the Tx DAC differential output signals to single-ended analog outputs. The EV kits include circuitry that generates a clock signal from an AC sine-wave input signal. The EV kits operate from a +3.0V analog power supply, a +1.8V digital power supply, a +3.0V clock power supply, and ±5V bipolar power supplies.

The Maxim command module interface board (CMODUSB) allows a PC to use its USB port to emulate an SPI™ 3-wire interface. Windows® 98SE/2000/XP-compatible software, which can be downloaded from www.maximintegrated.com/evkitsoftware, provides a user-friendly interface to exercise the features of the MAX19710–MAX19713. The program is menu driven and offers a graphical user interface (GUI) with control buttons and a status display.

Applications