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TH72002KDC Fiches technique(PDF) 17 Page - Melexis Microelectronic Systems

No de pièce TH72002KDC
Description  ASK Transmitter
PDF  20 Pages
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Fabricant  MELEXIS [Melexis Microelectronic Systems]
Site Internet  http://www.melexis.com
Logo MELEXIS - Melexis Microelectronic Systems

TH72002KDC Fiches technique(HTML) 17 Page - Melexis Microelectronic Systems

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TH72002
315MHz
ASK Transmitter
3901072002
Page 17 of 20
Data Sheet
Rev. 007
June/07
6
Test Circuit
Fig. 17: Test circuit for ASK with 50
Ω matching network
6.1
Test circuit component list to Fig. 18
Part
Size
Value @
315 MHz
Tolerance
Description
CM1
0805
10 pF
±5%
impedance matching capacitor
CM2
0805
15 pF
±5%
impedance matching capacitor
CM3
0805
82 pF
±5%
impedance matching capacitor
LM
0805
47 nH
±5%
impedance matching inductor, note 2
LT
0805
33 nH
±5%
output tank inductor, note 2
CX1
0805
27 pF
±5%
XOSC capacitor, note 1
RPS
0805
see section 4.6
±5%
power-select resistor
CB0
1206
220 nF
±20%
de-coupling capacitor
CB1
0805
330 pF
±10%
de-coupling capacitor
XTAL
HC49/S
9.84375MHz
±30ppm calibr.
±30ppm temp.
fundamental wave crystal,
CL = 12 pF, C0, max = 7 pF, R1 = 60 Ω
Note 1: value depending on crystal parameters
Note 2: for high-power applications high-Q wire-wound inductors should be used
RPS
XTAL
6
7
8
5
CX1
CM1
LT
CM3
CM2
OUT
LM
CB1
CB0
2 3
1
2
1
23
1



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