參數資料
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： 51/88頁
文件大小： 2086K
代理商： TDA5251F1
TDA5251 F1
Version 1.0
Application
Preliminary Specification
51
2003-02-18
Confidential
e.g.
f
COSC HI
f
COSC LOW
= (315E6 + 30E3) / 24= 13.12625MHz
= (315E6 - 30E3) / 24= 13.12375MHz
with a frequency deviation of 30kHz.
Figure 3-15
shows the configuration of the switches and the capacitors to achieve the 2 desired
frequencies. Gray parts of the schematics indicate inactive parts. For FSK modulation the ASK-
switch is always open.
For
FSK LOW
the FSK-switch is closed and C
v2
and C
tune2
are bypassed. The effective C
v-
is given
by:
For finetuning C
tune1
can be varied over a range of 8 pF in steps of 125fF. The switches of this C-
bank are controlled by the bits
D0
to
D5
in the
FSK
register (subaddress 01H, see
Table 3-6
).
For
FSK HIGH
the FSK-switch is open. So the effective C
v+
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
HIGH frequency. The switches of this C-bank are controlled by the bits
D8
to
D13
in the
FSK
register (subaddress 01H,
see Table 3-6
).
QOSC_FSK.wmf
Figure 3-15
FSK modulation
1
1
tune
v
V
C
C
C
[3 – 20]
Cv+
Cv1
Ctune1
Ctune1
+
Cv2
Cv2
Ctune2
Ctune2
+
+
+
+
-Cv1
=
[3 – 21]
FSK HIGH
XOUT 19
XIN 21
XSWF 20
XSWA 22
XGND 23
-R
L
A
s
F
s
FSK LOW
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
V1
C
V2
C
V3
f, C
L
C
tune1
C
tune2
C
tune1
C
tune2
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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
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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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