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参数资料
| 型号： | MICRF009BM |
| 厂商： | Micrel Inc |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC RECEIVER UHF LOW POWER 16SOIC |
| 标准包装： | 48 |
| 频率： | 300MHz ~ 440MHz |
| 灵敏度： | -102dBm |
| 数据传输率 - 最大： | 2 kbps |
| 调制或协议： | ASK，OOK |
| 应用： | RKE |
| 电流 - 接收： | 2.9mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 特点： | 自动调谐 |
| 电源电压： | 4.75 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
Micrel
Functional Diagram
Figure 1. MICRF009 Block Diagram
MICRF009
Application Information and Function
Description
Refer to “MICRF009 Block Diagram.” Identified in the block
diagram are the three sections of the IC: 1) UHF
Downconverter, 2) OOK Demodulator, 3) Reference and
Control. Also shown in the figure are two capacitors (C TH ,
C AGC ) and one timing component, which is usually a
crystal or ceramic resonator. With the exception of a supply
decoupling capacitor and antenna impedance matching
network, these are the only external components needed
by the MICRF009 to assemble a complete UHF receiver.
For optimal performance it is highly recommended that the
MICRF009 is impedance-matched to the antenna. The
matching network will add additional two or three
components.
Four control inputs are shown in the block diagram: SEL0,
SEL1, SWEN, and SHUT. Using these logic inputs, the
user can control the operating mode and selectable
features of the IC. These inputs are CMOS compatible and
are internally pulled-up. The IF Bandpass Filter Roll-off
response of the IF Filter is 5th order, while the demodulator
data filter exhibits a 2nd order response.
Design Steps
The following steps are the basic design steps for using the
MICRF009 receiver:
1. Select the operating mode (sweep or fixed)
2. Select the reference oscillator
3. Select the demodulator filter bandwidth
4. Select the CTH capacitor
5. Select the CAGC capacitor
Step 1: Selecting The Operating Mode
Fixed-Mode Operation
For applications where the transmit frequency is set
accurately (that is, applications where a SAW or crystal-
based transmitter is used), the MICRF009 may be
configured as a standard superheterodyne receiver (fixed-
mode). In fixed-mode operation, the RF bandwidth is
narrower making the receiver less susceptible to interfering
signals. Fixed-mode is selected by connecting SWEN to
ground.
Sweep-Mode Operation
When used in conjunction with low-cost LC transmitters,
the MICRF009 should be configured in sweep-mode. In
sweep-mode, while the topology is still superheterodynes,
the local oscillator (LO) is swept over a range of
frequencies at rates greater than the data rate. This
technique effectively increases the RF bandwidth of the
January 18, 2005
6
M9999-011805
(408) 955-1690
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MICRF009BM TR | 功能描述:IC RCVR UHF 300-440MHZ 16-SOIC RoHS:否 类别:RF/IF 和 RFID >> RF 接收器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 09/Jan/2012 标准包装:50 系列:* 频率:850MHz ~ 2.175GHz 灵敏度:- 数据传输率 - 最大:- 调制或协议:- 应用:* 电流 - 接收:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特点:- 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 85°C 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| MICRF009YM | 功能描述:射频接收器 300-440MHz High Sensitivity Receiver( Lead Free) 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 |
| MICRF009YM TR | 功能描述:射频接收器 300-440MHz High Sensitivity Receiver( Lead Free) 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 |
| MICRF010 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:QwikRadio Low-Power UHF Receiver |
| MICRF010BM | 功能描述:IC RCVR UHF 300-440MHZ 8-SOIC RoHS:否 类别:RF/IF 和 RFID >> RF 接收器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 09/Jan/2012 标准包装:50 系列:* 频率:850MHz ~ 2.175GHz 灵敏度:- 数据传输率 - 最大:- 调制或协议:- 应用:* 电流 - 接收:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特点:- 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 85°C 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
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