MAX2314

CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer

Complete CDMA IF Subsystem

Data Sheet (Rev. 2)
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Overview

  • Complete IF Subsystem Includes VCO and Synthesizer
  • Supports Dual-Band, Triple-Mode Operation
  • VGA with >110dB Gain Control
  • Quadrature Demodulator
  • High Output Level (2.7V)
  • Programmable Charge-Pump Current
  • Supports Any IF Frequency Between 40MHz and 300MHz
  • 3-Wire Programmable Interface
  • Low Supply Voltage (+2.7V)

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 supply voltage. Including the low-noise voltage-controlled oscillator (VCO) and synthesizer, the MAX2310 draws only 26mA from a +2.75V supply in CDMA (differential IF) mode.

The MAX2310/MAX2312/MAX2314/MAX2316 are available in 28-pin QSOP packages.

Applications

  • Globalstar Dual-Mode Handsets
  • Single/Dual/Triple-Mode CDMA Handsets
  • Tetra Direct-Conversion Receivers
  • Wireless Data Links
  • Wireless Local Loop (WLL)
MAX2314
CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer
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Documentation

Data Sheet 1

Technical Articles 2

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Low-Noise Amplifiers (LNAs) & Power Amplifiers 1
MAX2320
Adjustable, High-Linearity, SiGe, Dual-Band, LNA/Mixer ICs
RF Mixers 2
MAX2323
Triple/Dual-Mode CDMA LNA/Mixers
MAX2325
Triple/Dual-Mode CDMA LNA/Mixers
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