MAX2395
Description
Features o 5% EVM for POUT = +6d Bm o 1920MHz to 1980MHz Operation o +2.7V to +3.3V Single-Supply Operation o +6d Bm Output Power at 72m A o 81d B Minimum Automatic Gain-Control (AGC) Range o Automatic ICC Throttle Back for Optimal Power Consumption o No IF SAW Filter Necessary o On-Chip RF PLL, with Fully Monolithic VCO o Ultra-Low External ponent Count
The MAX2395 fully monolithic quasi-direct modulator IC is designed for use in WCDMA/UMTS transmitters. The quasi-direct modulation architecture reduces system cost, ponent count, and board space pared to transmitters using an IF SAW filter with IF VCO and IF synthesizer blocks. The MAX2395 includes I/Q baseband filters, an IF I/Q modulator with VGA, a fully monolithic VCO with PLL, an upconverter mixer, an RF VGA, and a power amplifier (PA) driver. The use of the quasi-direct modulator scheme ensures 5% (typ) EVM and a 30d B (min) carrier suppression. The RF VGA and IF VGA provide a nominal 90d B of output power...
