TH72011_12 Datasheet, PDF (17/20 Pages) Melexis Microelectronic Systems – FSK Transmitter

6 Test Circuit
CM2
CM1
OUT
LM CM3
LT
CB1
RPS
8
7
6
5
TH72011
433MHz
FSK Transmitter
CX2
XTAL
CX1
12 3
CB0
12 3 12
Fig. 18: Test circuit for FSK with 50 Ω matching network
6.1 Test circuit component list to Fig. 18
Part Size
Value @
433.92 MHz
Tolerance
Description
CM1
CM2
CM3
LM
LT
CX1
CX2
RPS
CB0
CB1
XTAL
0805
0805
0805
0805
0805
0805
0805
0805
1206
0805
HC49/S
5.6 pF
10 pF
82 pF
33 nH
33 nH
12 pF
33 pF
see para. 4.6
220 nF
330 pF
13.56000 MHz
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±20%
±10%
±30ppm calibr.
±30ppm temp.
impedance matching capacitor
impedance matching capacitor
impedance matching capacitor
impedance matching inductor, note 2
output tank inductor, note 2
XOSC capacitor (∆f = ±28 kHz), note 1
XOSC capacitor (∆f = ±28 kHz), note 1
power-select resistor
blocking capacitor
blocking capacitor
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
3901072011
Rev. 011
Page 17 of 20
Data Sheet
Jun/12