TH7107 データシートの表示（PDF） - Melexis Microelectronic Systems
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TH7107 Datasheet PDF : 16 Pages
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6 Test Circuit
Fig. 4: Test circuit for FSK, ASK and FM;
with 50Ω matching network
TH7107
315/433MHz
FSK/FM/ASK Transmitter
OUT
C4
L3
C1
C3
C2 C5 L1
L2
C6
RPS
RF2
CX2
RF1
CX3
XTAL
R3
CF2
CF1
CX1
V1
R1
R2
C7
12 12 12
12 12 3 12
6.1 Test circuit component list (Fig. 4)
Part Size
Value
Tolerance
CF1
CF2
CX1_FSK
CX1_ASK
CX2
CX3
C1
C2
C3
C4
C5
C6
C7
L1
L2
L3
RF1
RF2
RPS
R1
R2
R3
V1
XTAL
0603
0603
0603
0603
0603
0603
0603
0805
0805
0603
0603
0603
1206
0603
0603
0805
0805
0805
0805
0805
0805
0805
SOD323
HC49/S
10 nF
12 pF
39 pF
68 pF
1 nF
1 nF
2.7 pF
0.68 pF
3.9 pF
150 pF
330 pF
330 pF
220 nF
22 nH
22 nH
33 nH
2.0 kΩ
4.3 kΩ
56 kΩ
470 kΩ
30 kΩ
0Ω
BB535
13.55 MHz
fundamental wave
±10%
±10%
±5%
±5%
±5%
±10%
±5%
±5%
±5%
±5%
±10%
±10%
±20%
±5%
±5%
±5%
±10%
±10%
±10%
±10%
±10%
±10%
±30ppm calibr.
±30ppm temp.
Note 1: value depends on crystal parameters
Description
loop filter capacitor
loop filter capacitor
XOSC capacitor for FSK (∆f = ±20 kHz), note 1
XOSC capacitor for ASK, trimmed to fC, note 1
XOSC capacitor (for FSK only), note 1
XOSC capacitor (for FM only)
impedance matching capacitor
impedance matching capacitor
impedance matching capacitor
impedance matching capacitor
blocking capacitor
blocking capacitor
blocking capacitor
impedance matching inductor
impedance matching inductor
impedance matching inductor
loop filter resistor
loop filter resistor
power-select resistor
optional pull-up resistor
varactor bias resistor, (for FM only)
ASK jumper, (for ASK only)
varactor diode (for FM only)
crystal, Cload = 12 pF to 15 pF, C0, max = 7 pF,
Rm, max = 40 Ω
3901007107
Rev. 008
Page 11 of 16
Data Sheet
May/03
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