參數(shù)資料
型號(hào): TDA5251F1
廠商: INFINEON TECHNOLOGIES AG
英文描述: ASK/FSK 315MHz Wireless Transceiver
中文描述: 詢價(jià)/ FSK信號(hào)315MHz的無線收發(fā)器
文件頁數(shù): 65/88頁
文件大?。?/td> 2086K
代理商: TDA5251F1
TDA5251 F1
Version 1.0
Application
Preliminary Specification
65
2003-02-18
Confidential
PKD_PWDN.wmff
Figure 3-27
Peak detector - power down mode
PkD_PWDN3.wmf
Figure 3-28
Power down mode
3.7
Data Valid Detection
In order to detect valid data two criteria must be fulfilled.
One criteria is the data rate, which can be set in register 06h and 07h. The other one is the received
RF power level, which can be set in register 08h in form of the RSSI threshold voltage. Thus for
using the data valid detection FSK modulation is recommended.
+ Peak
Detector
- Peak
Detector
12
13
14
PDP
SLC
PDN
Data
Filter
100k
100k
Vcc
C
P
C
N
off
off
Power Down Mode
R1
R2
Logic
0V
Vcc
Vcc
Neg. Peak Detector (pin12)
Signal
t
Threshold (pin14)
Pos. Peak Detector (pin13)
Power ON
Power Down
Vcc
0
Peak Detector Power ON
Data Signal
Power ON
2,2ms
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