MAX2900, MAX2901, MAX2902, MAX2903, MAX2904 200mW、单片发送器IC，用于868MHz/915MHz ISM频段

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MAX2900–MAX2904是完备的单片200mW发送器，专为868MHz/915MHz波段的应用而设计。MAX2900/MAX2901/MAX2902符合FCC CFR47的第15.247部分有关902MHz至928MHz ISM波段的规范。MAX2903/MAX2904符合为欧洲868MHz ISM波段设定的ETSI EN330-220规范。

这些发送IC在提供高度集成的同时大大减少了外部元件的数量，这一目标是通过完全集成的发送调制器、功率放大器、RF VCO、8通道频率合成器以及基带PN序列低通滤波器实现的。通过对BPSK调制信号滤波，降低了杂散信号的辐射，在美国ISM波段内能够获得八个独立的发送信道。为扩频BPSK、ASK和OOK提供输入，通过直接调制VCO实现调频(FM)。这些器件适合与外部差分天线配合使用。

关键特性

应用/使用

适合美国902MHz至928MHz波段和欧洲868MHz波段的方案
-7dBm至+23dBm可调节差分RF输出功率
4.5V时输出功率为+23dBm，3.0V时输出功率为+20dBm
支持BPSK、OOK、ASK和FM调制
为高达8Mchips/s的直序BPSK提供调制滤波器
具有内部槽路的、完全集成的VCO
OOK调制中具有极低的频率牵引(典型峰值60kHz、RMS为5kHz)
8通道集成频率合成器(MAX2900)
工作于+2.7V至+4.5V电源
采用焊盘裸露的、小型28引脚QFN封装(5mm x 5mm)

	自动抄表
	无线楼宇控制
	无线数据网络
	无线安全系统/报警装置
	无线传感器

Key Specifications: Transmit System ICs

Part Number

Min. Frequency (MHz)

Max. Frequency (MHz)

Features

Footprint (mm x mm)

Package

Price^**

MAX2900

902

928

•	+23dBm Output Power at 4.5V, +20dBm at 3.0V

•	Integrated Frequency Synthesizer For Up to 8 Channels

•	Integrated VCO with On-Chip Tank

•	Supports Spread-Spectrum BPSK, ASK, OOK, and FM

5.0 x 5.0

QFN/28
THIN QFN/28

$3.34 @ 1k

MAX2901

902

928

•	+23dBm Output Power at 4.5V, +20dBm at 3.0V

•	Integrated Frequency Synthesizer For Up to 2 Channels

•	Integrated VCO with On-Chip Tank

•	Supports Spread-Spectrum BPSK, ASK, OOK, and FM

$3.34 @ 1k

MAX2902

902

928

•	+23dBm Output Power at 4.5V, +20dBm at 3.0V

•	Integrated VCO with On-Chip Tank

•	Off-Chip Synthesizer

•	Supports Spread-Spectrum BPSK, ASK, OOK, and FM

$3.20 @ 1k

MAX2903

867

870

•	+23dBm Output Power at 4.5V, +20dBm at 3.0V

•	Integrated Frequency Synthesizer For Up to 2 Channels

•	Integrated VCO with On-Chip Tank

•	Supports Spread-Spectrum BPSK, ASK, OOK, and FM

$3.34 @ 1k

MAX2904

867

870

•	+23dBm Output Power at 4.5V, +20dBm at 3.0V

•	Integrated VCO with On-Chip Tank

•	Off-Chip Synthesizer

•	Supports Spread-Spectrum BPSK, ASK, OOK, and FM

$3.20 @ 1k

See All Transmit System ICs (19)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.