TH71081 查看數據表（PDF） - Unspecified
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TH71081 Datasheet PDF : 6 Pages
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TH71081
868/915MHz ASK Transmitter / LO Source
Test Circuit
Fig. 2: test circuit for ASK, OOK or CW mode; with 50Ω matching network
test circuit component list
Part
Size
Value
CF1
0603
5.6 nF
CF2
0603
4.7 pF
CX
0603
15 – 470 pF
C1
0603
TBD pF
C2
0603
TBD pF
C3
0805
TBD pF
C4
0603
330 pF
C5
0603
330 pF
C6
0805
33 nF
L1
0603
TBD nH
L2
0603
TBD nH
L3
0603
TBD nH
RF1
0603
3.6 kΩ
R1
0603
TBD
R2
0603
TBD
XTAL
HC49/S
27.1344 MHz
fundamental wave
Tolerance
±10%
±10%
±5%
±5%
±5%
±5%
±10%
±10%
±20%
±5%
±5%
±5%
±10%
±10%
±10%
±30ppm calibration
±30ppm temp.
Description
loopfilter capacitor
loopfilter capacitor
optional XOSC capacitor, to trim carrier frequency
balun capacitor
balun capacitor
impedance matching capacitor
blocking capacitor
blocking capacitor
blocking capacitor
balun inductor
balun inductor
impedance matching inductor
loopfilter resistor
ASK power-select resistor, not required at CW mode
ASK or CW mode power-select resistor
crystal, Cload = 12pF, C0,max = 4pF, Cm = 20fF, Rm= 10 -20Ω
Rev. 1.0
Preliminary Datasheet
6
March 2000
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