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(wú)線收發(fā)器
文件頁(yè)數(shù)： 64/88頁(yè)
文件大小： 2086K
代理商： TDA5251F1
TDA5251 F1
Version 1.0
Application
Preliminary Specification
64
2003-02-18
Confidential
Component calculation: (rule of thumb)
T
L1
– longest period of no signal change (LOW signal)
T
L2
– longest period of no signal change (HIGH signal)
3.6.3
Peak Detector - Analog output signal
The TDA5251 data output can be digital (pin 28) or in analog form by using the peak detector output
and changing some settings.
To get an analog data output the slicer must be set to
lowpass mode (Reg. 0, D15 = LP = 0)
and
the peak detector capacitor at pin 12 or 13 has to be changed to a resistor of about 47kOhm.
PkD_analog.wmf
Figure 3-26
Peak Detector as analog Buffer (v=1)
3.6.4
Peak Detector – Power Down Mode
For a safe and fast threshold value generation the peak detector is turned on by the sequencer
circuit (see
Section 2.4.18
) only after the entire receiving path is active.
In the off state the output of the positive peak detector is tied down to GND and the output of the
negative peak detector is pulled up to VCC.
k
L
T
P
C
100
1
*
2
[3 – 34]
k
L
T
n
C
100
2
*
2
[3 – 35]
+ Peak
Detector
- Peak
Detector
12
14
SLC
PDN
100k
100k
Vcc
13
PDP
Data
Filter
100k
R
DataSlicer
+
-
28
DATA
Contr.
Logic
Slicer Threshold
C
SLC
Signal
47k
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA5251F1_07 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ASK/FSK 315MHz Wireless Transceiver
TDA5251XUMA1 制造商:Infineon Technologies AG 功能描述:RF Transceiver ASK/FSK 2.5V/3.3V/5V T/R 制造商:Infineon Technologies AG 功能描述:CONTROL - Tape and Reel 制造商:Infineon Technologies AG 功能描述:TXRX FSK/ASK SGL LP TSSOP-38
TDA5252 功能描述:射頻接收器 ASK/FSK WIRELESS TRANSCEIVER RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel
TDA5252G2 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ASK/FSK 915MHz Wireless Transceiver
TDA5252XUMA1 制造商:Infineon Technologies AG 功能描述:RF Transceiver ASK/FSK 2.5V/3.3V/5V 38-Pin TSSOP T/R 制造商:Infineon Technologies AG 功能描述:CONTROL - Tape and Reel 制造商:Infineon Technologies AG 功能描述:TXRX FSK/ASK SGL LP TSSOP-38
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