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MICRF219A
300MHz to 450MHz ASK/OOK Receiver with
Auto-Poll, RSSI, and Squelch
General Description
Features
The MICRF219A is a 300MHz to 450MHz super-
heterodyne, image-reject, RF receiver with automatic gain
control, ASK/OOK demodulator, analog RSSI output, and
integrated squelch features. It only requires a crystal and a
minimum number of external components to implement.
The MICRF219A is ideal for low-cost, low-power, RKE,
TPMS, and remote actuation applications.
The MICRF219A achieves ? 110dBm sensitivity at a bit
rate of 1kbps with 0.1% BER. Four demodulator filter
bandwidths are selectable in binary steps from 1625Hz to
13kHz at 433.92MHz, allowing the device to support bit
rates up to 20kbps. The device operates from a supply
voltage of 3.0V to 3.6V, and typically consumes 4.3mA of
supply current at 315MHz and 6.0mA at 433.92MHz. A
shutdown mode reduces supply current to 0.1 μ A typical.
The squelch feature decreases the activity on the data
output pin until valid bits are detected while maintaining
overall receiver sensitivity.
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–110dBm sensitivity at 1kbps with 0.1% BER
Auto-polling mode with bit checking
Supports bit rates up to 20kbps at 433.92MHz
25dB image-reject mixer
No IF filter required
60dB analog RSSI output range
3.0V to 3.6V supply voltage range
4.3mA supply current at 315MHz
6.0mA supply current at 434MHz
13 μ A supply current in sleep mode
0.1 μ A supply current in shutdown mode
16-pin QSOP package (4.9mm x 6.0mm)
? 40 ° C to +105 ° C temperature range
3kV HBM ESD Rating
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com .
Ordering Information
Part Number Temperature Range
Package
MICRF219AAYQS
–40 ° C to +105 ° C
16-Pin QSOP
_________________________________________________________________________________________________________________________
Typical Application
MICRF219A Typical Application Circuit (433.92MHz, 1kbps)
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
July 2011
M9999-071811-A
RadioTech@micrel.com or (408) 944-0800
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MICRF219AAYQS-TR 功能描述:- RF Receiver ASK, OOK 300MHz ~ 450MHz -112.5dBm PCB, Surface Mount 16-QSOP 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 频率:300MHz ~ 450MHz 灵敏度:-112.5dBm 数据速率（最大值）:- 调制或协议:ASK，OOK 应用:通用 电流 - 接收:4.3mA 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特性:配有 RSSI 电压 - 电源:3 V ~ 3.6 V 工作温度:-40°C ~ 105°C 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 供应商器件封装:16-QSOP 标准包装:1
MICRF219AYQS 功能描述:射频接收器 QwikRadio Receiver (Not Recommended for New Designs) RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel
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MICRF220 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:300MHz to 450MHz, 3.3V ASK/OOK Receiver with RSSI and Squelch
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MICRF220-433-EV 功能描述:EVAL BOARD FOR MICRF220 制造商:microchip technology 系列:- 零件状态:有效 类型:接收器 频率:433.92MHz 配套使用产品/相关产品:MICRF220 所含物品:板 标准包装:1
MICRF220AYQS 功能描述:射频接收器 300MHz to 450MHz, 3.0V to 3.6V, 6mA, <10kbps ASK Receiver with RSSI and Shutdown RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel
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