Teilenummer : MAX19700
Function : 7.5Msps, Ultra-Low-Power Analog Front-End
Hersteller : Maxim Integrated
Pinout :
Beschreibung :
General Description
The MAX19700 is an ultra-low-power, mixed-signal analog front-end (AFE) designed for TD-SCDMA handsets and data cards. Optimized for high dynamic performance at ultra-low power, the MAX19700 integrates a dual 10-bit, 7.5Msps receive (Rx) ADC, dual 10-bit,
7.5Msps transmit (Tx) DAC with TD-SCDMA baseband filters, and three fast-settling 12-bit aux-DAC channels for ancillary RF front-end control. The typical operating power in Tx-Rx FAST mode is 36.3mW at a 5.12Msps clock frequency.
The Rx ADCs feature 54.9dB SINAD and 78dBc SFDR at a 1.87MHz input frequency with a 7.5Msps sample frequency. The analog I/Q input amplifiers are fully differential and accept 1.024VP-Pfull-scale signals.Typical I/Q channel matching is ±0.22° phase and±0.02dB gain.
♦Dual 10-Bit Rx ADC and Dual 10-Bit Tx DAC
♦Ultra-Low Power
36.3mW at fCLK= 5.12Msps, Fast Mode
19.8mW at fCLK= 5.12Msps, Slow Mode
Low Standby and Shutdown Current
♦Integrated TD-SCDMA Filters with >55dB
Stopband Rejection
♦Excellent Dynamic Performance
SINAD = 54.9dB at fIN = 1.87MHz (Rx ADC)
SFDR = 76.5dBc at fOUT= 620kHz (Tx DAC)
♦Excellent Gain/Phase Match
±0.22° Phase, ±0.02dB Gain (Rx ADC) at
fIN = 1.87MHz at -0.5dBFS
♦Three 12-Bit, 1µs Aux-DACs
♦Single-Supply Operation
♦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 :
MAX19700,MAX19700ETM,MAX19700ETM+