Teilenummer : MAX19705
Function : 10-Bit, 7.5Msps, Ultra-Low-Power Analog Front-End
Hersteller : Maxim Integrated
Pinout :
Beschreibung :
General Description
The MAX19705 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, 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 Tx-Rx FAST mode is 28.2mW at a 7.5MHz clock frequency.
The Rx ADCs feature 55.1dB SNR and 73.4dBc SFDR at a 1.875MHz input frequency with a 7.5MHz clock frequency. The analog I/Q input amplifiers are fully differential and accept 1.024VP-Pfull-scale signals. Typical I/Qchannel matching is ±0.01° phase and ±0.02dB gain.
♦Dual 10-Bit, 7.5Msps Rx ADC and Dual 10-Bit,
7.5Msps Tx DAC
♦Ultra-Low Power
28.2mW at fCLK= 7.5MHz, Fast Mode
21mW at fCLK= 7.5MHz, Slow Mode
Low-Current Standby and Shutdown Modes
♦Programmable Tx DAC Common-Mode DC Level
and I/Q Offset Trim
♦Excellent Dynamic Performance
SNR = 55.1dB at fIN = 1.875MHz (Rx ADC)
SFDR = 77.2dBc 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, ±0.02dB Gain (Rx ADC) at
fIN = 1.875MHz
♦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 x 7mm x 0.8mm)
Datenblatt PDF Download
Andere Datenblätter in der Datei :
MAX19705,MAX19705ETM,MAX19705ETM+