MAX2306EGI

MAX2306EGI Features

♦ Complete IF Subsystem Includes VCO andSynthesizer♦ 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 and300MHz♦ 3-Wire Programmable Interface♦ Low Supply Voltage (+2.7V)

MAX2306EGI General Description

The MAX2306/MAX2308/MAX2309 are IF receiversdesigned for dual-band, dual-mode, and single-modeN-CDMA and W-CDMA cellular phone systems. Thesignal 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 receiversincludes dual oscillators and synthesizers to form aself-contained IF subsystem. The synthesizer’s refer-ence and RF dividers are fully programmable through a3-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, andoffer saturated output levels of 2.7Vp-p at a low +2.75Vsupply voltage. Including the low-noise voltage-con-trolled oscillator (VCO) and synthesizer, the MAX2306draws 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.

MAX2306EGI Applications

Single/Dual/Triple-Mode CDMA HandsetsGlobalstar Dual-Mode HandsetsWireless Data LinksW-CDMA HandsetsWireless Local Loop (WLL)