MAXIM MAX2306/MAX2308/MAX2309 CDMA IF VGAs I/Q Demodulators with VCO Synthesizer Manual
The MAX2306/MAX2308/MAX2309 are IF receivers designed for dual-band, dual-mode, and single-mode N-CDMA and W-CDMA cellular phone systems. The signal path consists of a variable-gain amplifier (VGA) and I/Q demodulator. The devices feature guaranteed +2.7V operation, a gain control range of over 110dB, and high input IP3 (-31dBm at 35dB gain, 3.4dBm at -35dB gain). Unlike similar devices, the MAX2306 family of receivers includes dual oscillators and synthesizers to form a self-contained IF subsystem. The synthesizer’s refer- ence and RF dividers are fully programmable through a 3-wire serial bus, enabling dual-band system architec- tures using any common reference and IF frequency. The differential baseband outputs have enough band- width to suit both N-CDMA and W-CDMA systems, and offer saturated output levels of 2.7Vp-p at a low +2.75V supply voltage. Including the low-noise voltage-con- trolled oscillator (VCO) and synthesizer, the MAX2306 draws only 26mA from a +2.75V supply in CDMA (dif- ferential IF) mode. The MAX2306/MAX2308/MAX2309 are available in 28- pin Thin QFN and QFN packages.
Brand: MAXIM
File format: PDF
Size: 193 KB
MD5 Checksum: 3790DDF101E5052C81FDAA1ED5A09014
Publication date: 21 March, 2012
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PDF Link: MAXIM MAX2306/MAX2308/MAX2309 CDMA IF VGAs I/Q Demodulators with VCO Synthesizer Manual PDF