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MICRF022YM-FS48 参数 Datasheet PDF下载

MICRF022YM-FS48图片预览
型号: MICRF022YM-FS48
PDF下载: 下载PDF文件 查看货源
内容描述: 300-440MHz QwikRadio系列? ASK接收器 [300-440MHz QwikRadio? ASK Receiver]
分类和应用: 商用集成电路光电二极管
文件页数/大小: 17 页 / 373 K
品牌: MICREL [ MICREL SEMICONDUCTOR ]
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Micrel, Inc.  
MICRF002/RF022  
Pin Description  
Pin Number  
SOIC-16  
Pin Number  
Pin Name  
Pin Name  
SOIC-8  
1
SEL0  
Bandwidth Selection Bit 0 (Digital Input): Used in conjunction with SEL1 to set  
the desired demodulator filter bandwidth. See Table 1. Internally pulled-up to  
VDDRF.  
2, 3  
4
1
2
VSSRF  
ANT  
RF Power Supply: Ground return to the RF section power supply.  
Antenna (Analog Input): For optimal performance the ANT pin should be  
impedance matched to the antenna. See “Applications Information” for  
information on input impedance and matching techniques.  
5
6
3
VDDRF  
VDDBB  
RF Power Supply: Positive supply input for the RF section of the IC.  
Base-Band Power Supply: Positive supply input for the baseband section  
(digital section) of the IC.  
7
4
CTH  
Data Slicing Threshold Capacitor (Analog I/O): Capacitor connected to this  
pin extracts the dc average value from the demodulated waveform which  
becomes the reference for the internal data slicing comparator.  
8
9
NC  
Not internally connected  
VSSBB  
Base-Band Power Supply: Ground return to the baseband section power  
supply.  
10  
11  
5
6
DO  
Data Output (Digital Output)  
SHUT  
Shutdown (Digital Input): Shutdown-mode logic-level control input. Pull low to  
enable the receiver. Internally pulled-up to VDDRF.  
12  
13  
14  
7
WAKEB  
CAGC  
SEL1  
Wakeup (Digital Output): Active-low output that indicates detection of an  
incoming RF signal.  
Automatic Gain Control (Analog I/O): Connect an external capacitor to set the  
attack/decay rate of the on-chip automatic gain control.  
Bandwidth Selection Bit 1 (Digital Input): Used in conjunction with SEL0 to set  
the desired demodulator filter bandwidth. See Table 1. Internally pulled-up to  
VDDRF.  
15  
16  
8
REFOSC  
SWEN  
Reference Oscillator: Timing reference, sets the RF receive frequency.  
Sweep-Mode Enable (Digital Input): Sweep- or Fixed-mode operation control  
input. SWEN high= sweep mode; SWEN low = conventional superheterodyne  
receiver. Internally pulled-up to VDDRF.  
M9999-070808  
July 2008  
3