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參數(shù)資料
| 型號： | TDA5251F1 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | ASK/FSK 315MHz Wireless Transceiver |
| 中文描述： | 詢價/ FSK信號315MHz的無線收發(fā)器 |
| 文件頁數(shù)： | 70/88頁 |
| 文件大小： | 2086K |
| 代理商： | TDA5251F1 |
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TDA5251 F1
Version 1.0
Application
Preliminary Specification
70
2003-02-18
Confidential
This gives 15ms ON time of a total period of 150ms which results in max. 0.9mA mean current
consumption in Self Polling Mode. The resulting worst case timing is shown in the following figure:
data_timing021.wmf
Figure 3-33
3 possible timings
Description:
Assumption: the ON time comes right after the first frame (Case A). If OFF time is 135ms the
receiver turns on during Sync-pulses and the PwdDD- pulse wakes up the μP.
If the ON time is in the center of the 50ms gap of transmission (Case B), the Data Detect Logic will
wake up the μP 135ms later.
If ON time is over just before Sync-pulses (Case C), next ON time is during Data transmission and
Data Detect Logic will trigger a PwdDD- pulse to wake up the μP.
Note:
In this example it is recommended to use the Peak Detector for slicer threshold generation,
because of its fast attack and slow release characteristic. To overcome the data zero gap of 50ms
larger external capacitors than noted in
Section 4.4
at pin12 and 13 are recommended. Further
information on calculating these components can be taken from
Section 3.6.2
.
3.10
Sensitivity Measurements
3.10.1
Test Setup
The test setup used for the measurements is shown in the following figure. In case of ASK
modulation the Rohde & Schwarz SMIQ generator, which is a vector signal generator, is connected
to the I/Q modulation source AMIQ. This "baseband signal generator" is in turn controlled by the PC
t [ms]
Data
Data
Data
Data
50ms
135ms
15ms
μP enables Receiver
until Data completed
Interrupt
due PwdDD
Case A:
t [ms]
Data
Data
Data
Data
50ms
Case B:
135ms
15ms
μP enables Receiver
until Data completed
Interrupt
due PwdDD
t [ms]
Data
Data
Data
Data
50ms
Case C:
135ms
15ms
μP enables Receiver
until Data completed
Interrupt
due PwdDD
... Receiver enabled
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相關(guān)代理商/技術(shù)參數(shù) |
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| 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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