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)： 52/88頁
文件大小： 2086K
代理商： TDA5251F1
TDA5251 F1
Version 1.0
Application
Preliminary Specification
52
2003-02-18
Confidential
In
receive
mode the crystal oscillator frequency is set to yield a direct-to-zero conversion of the
receive data. Thus the frequency may be calculated as
f
COSC
= f
RF
/ 24,
e.g.
f
COSC
= 315E6 / 24= 13.123MHz
which is identical to the ASK transmit case.
QOSC_ASK.wmf
Figure 3-16
FSK receive
In this case the ASK-switch is closed. The necessary C
vm
is given by:
The C-bank C
tune2
can be varied over a range of 16 pF in steps of 250fF for finetuning of the FSK
receive frequency. In this case the switches of the C-bank are controlled by the bits
D0
to
D5
of the
XTAL_TUNING
register (subaddress 02H,
see Table 3-5
).
3.2.2.2
ASK-mode:
In
transmit
mode the crystal oscillator frequency is the same as in the FSK receive case,
see
Figure 3-16
.
In
receive
mode a receive frequency offset is necessary as the limiters feedback is AC-coupled.
This offset is achieved by setting the oscillator frequency to the FSK HIGH transmit frequency,
see
Figure 3-15
.
[3 – 22]
XOUT 19
XIN 21
XSWF 20
XSWA 22
XGND 23
-R
L
A
s
F
s
C
V1
C
V2
C
V3
f, C
L
C
tune1
C
tune2
Cvm
Cv1
Cv1
Ctune1
+
Cv2
Cv2
C
+
v3
Ctune2
Ctune2
+
+
C
+
v3
+
+
------------------Ctune1
=
[3 – 23]
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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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