MAX2308:CDMA IF VGA及I/Q解调器,带有VCO及合成器

完备的CDMA IF子系统

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 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 MAX2306 draws only 26mA from a +2.75V supply in CDMA (differential IF) mode. The MAX2306/MAX2308/MAX2309 are available in 28-pin QFN packages.

关键特性
  • 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)
MAX2306、MAX2308、MAX2309:功能框图
MAX2306、MAX2308、MAX2309:功能框图
应用
  • 全球星双模手机
  • 单/双/三模CDMA手机
  • WCDMA手机
  • 无线数据链接
  • 无线本地环路(WLL)
数据手册DataSheet
语言下载文件备注
英文MAX2306-MAX2309.pdfRev 3; 09/2004
关键参数
Part NumberVSUPPLY
(V)
ISUPPLY
(mA)
ApplicationsBand/ Freq.
(MHz)
Footprint
(mm x mm)
Package/PinsBudgetary
Price
See Notes
MAX23062.711.4 to 25.9
  • 450MHz-Band
  • IS-2000
  • IS-95
  • OFDM
  • Single, Dual and Triple Mode CDMA Handsets
  • WCDMA
40 - 3005.0 x 5.0
  • QFN/28
  • TQFN/28
$4.73 @1k
MAX2308Single, Dual and Triple Mode CDMA Handsets70 - 300
  • QFN/28
  • TQFN/28
-
MAX2309Single, Dual and Triple Mode CDMA Handsets70 - 300
  • QFN/28
  • TQFN/28
$3.92 @1k
开发工具
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX2308EGI停止供货MAX2308ETI+QFN,;28引脚;26mm²-40°C至+85°CRoHS/无铅:否
MAX2308EGI-T停止供货MAX2308ETI+QFN;28引脚-40°C至+85°C参考数据资料
MAX2308ETI停止供货MAX2308ETI+TQFN,;28引脚;26mm²-40°C至+85°CRoHS/无铅:否
MAX2308ETI+生产中TQFN,;28引脚;26mm²-40°C至+85°CRoHS/无铅:无铅
MAX2308ETI+T生产中TQFN,;28引脚;26mm²-40°C至+85°CRoHS/无铅:无铅
MAX2308ETI-T停止供货MAX2308ETI+TQFN;28引脚-40°C至+85°C参考数据资料
MAX2306-MAX2309.pdf MAX2309
MAX2306-MAX2309.pdf MAX2309