MAX19707

10-Bit, 45Msps, Ultra-Low-Power Analog Front-End


Please check latest availability status for a specific part variant.

Description

The MAX19707 is an ultra-low-power, mixed-signal analog front-end (AFE) designed for power-sensitive communication equipment. Optimized for high dynamic performance at 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 Tx-Rx FAST mode is 84.6mW at a 45MHz clock frequency.

The Rx ADCs feature 54.2dB SNR and 71.2dBc SFDR at fIN = 5.5MHz and fCLK = 45MHz. 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 ±0.01dB gain.

The Tx DACs feature 73.2dBc SFDR at fOUT = 2.2MHz and fCLK = 45MHz. The analog I/Q full-scale output voltage is ±400mV differential. The Tx DAC common-mode DC level is programmable from 0.71V to 1.05V. The I/Q channel offset is programmable to optimize radio lineup sideband/carrier suppresion. The typical I/Q channel matching is ±0.01dB gain and ±0.07° phase.

The Rx ADC and Tx DAC share a single, 10-bit parallel, high-speed digital bus allowing half-duplex operation for time-division duplex (TDD) applications. A 3-wire serial interface controls power-management modes, the aux-DAC channels, and the aux-ADC channels.

The MAX19707 operates on a single 2.7V to 3.3V analog supply and 1.8V to 3.3V digital I/O supply. The MAX19707 is specified for the extended (-40°C to +85°C) temperature range and is available in a 48-pin, thin QFN package. The Selector Guide at the end of the data sheet lists other pin-compatible versions in this AFE family.
MAX19707: Functional Diagram MAX19707: Functional Diagram Enlarge+

Key Features

  • Dual, 10-Bit, 45Msps Rx ADC and Dual, 10-Bit, 45Msps Tx DAC
  • Ultra-Low Power
    • 84.6mW at fCLK = 45MHz, Fast Mode
    • 77.1mW at fCLK = 45MHz, Slow Mode
    • Low-Current Standby and Shutdown Modes
  • Programmable Tx DAC Common-Mode DC Level and I/Q Offset Trim
  • Excellent Dynamic Performance
    • SNR = 54.2dB at fIN = 5.5MHz (Rx ADC)
    • SFDR = 73.2dBc 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, ±0.01dB 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 48-Pin Thin QFN Package (7mm × 7mm × 0.8mm)

Applications/Uses

  • 802.11a/b/g WLAN
  • Portable Communication Equipment
  • VoIP Terminals
  • WiMAX CPEs

See parametric specs for Fast CODECs / Analog Front-End (AFE) (7)


Part NumberInput Chan.Conv. Speed
(Msps)
SNR
(dB)
Resolution
(bits)
Output Chan.Speed
(Msps)
SFDR
(dBc)
THD
(dBc)
Noise Spectral Density
(dBFS/Hz)
VSUPPLY
(V)
Package/PinsBudgetary
Price
ADCADC@ fINDACDACDAC@ fOUT@ fOUT@ fOUTSee Notes
MAX19707 24554.2 @ 5.5MHz1024573.2 @ 2.2MHz-71 @ 2.2MHz-130.6 @ 2.2MHz
1.8
2.7 to 3.3
TQFN/48
$10.37 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX19705EVKIT: Evaluation Kit for the MAX19705, MAX19706, MAX19707, and MAX19708
MAX19706EVKIT: Evaluation Kit for the MAX19705, MAX19706, MAX19707, and MAX19708
MAX19707EVKIT: Evaluation Kit for the MAX19705, MAX19706, MAX19707, and MAX19708
MAX19708EVKIT: Evaluation Kit for the MAX19705, MAX19706, MAX19707, and MAX19708

Technical Documents

App Note 3853 Equalizing Techniques Flatten DAC Frequency Response
Product Reliability Reports: MAX19707.pdf 
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.

Quality Management System >
Environmental Management System >

 
Status:
Package:
Temperature:

Related Resources