CDMA IF VGAs and I/Q Demodulators
Description
MAX2310/MAX2312/MAX2314/MAX2316
19-1507; Rev 2; 6/07 EVAALVUAAILTAIOBNLEKIT
CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer
General Description
The MAX2310/MAX2312/MAX2314/MAX2316 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 dynamic range of over 110dB, and high input IP3 (-33dBm at 35dB gain, 1.
7dBm at -35dB).
Unlike similar devices, the MAX2310 family of receivers includes dual oscillators and synthesizers to form a self-contained IF subsystem.
The synthesizer’s reference and RF dividers are fully programmable through a 3-wire serial bus, enabling dual-band system architectures using any common reference and IF frequency.
The differential baseband outputs have enough bandwidth to suit both N-CDMA and W-CDMA systems, and offer saturated output levels of 2.
7Vp-p at a low +2.
75V...
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