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.
语言 | 下载文件 | 备注 |
---|---|---|
英文 | MAX2306-MAX2309.pdf | Rev 3; 09/2004 |
Part Number | VSUPPLY (V) | ISUPPLY (mA) | Applications | Band/ Freq. (MHz) | Footprint (mm x mm) | Package/Pins | Budgetary Price |
---|---|---|---|---|---|---|---|
See Notes | |||||||
MAX2306 | 2.7 | 11.4 to 25.9 |
| 40 - 300 | 5.0 x 5.0 |
| $4.73 @1k |
MAX2308 | Single, Dual and Triple Mode CDMA Handsets | 70 - 300 |
| - | |||
MAX2309 | Single, Dual and Triple Mode CDMA Handsets | 70 - 300 |
| $3.92 @1k | |||
型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
---|---|---|---|---|---|
MAX2309EGI | 停止供货 | MAX2309ETI+ | QFN,;28引脚;26mm² | -40°C至+85°C | RoHS/无铅:否 |
MAX2309EGI-T | 停止供货 | MAX2309ETI+T | QFN,;28引脚;26mm² | -40°C至+85°C | RoHS/无铅:否 |
MAX2309ETI+ | 生产中 | TQFN,;28引脚;26mm² | -40°C至+85°C | RoHS/无铅:无铅 | |
MAX2309ETI+T | 生产中 | TQFN,;28引脚;26mm² | -40°C至+85°C | RoHS/无铅:无铅 |