TH7122 Datasheet, PDF (33/44 Pages) Melexis Microelectronic Systems – 27 to 930MHz FSK/FM/ASK Transceiver

TH7122
27 to 930MHz
FSK/FM/ASK Transceiver
7.3 FSK Test Circuit Component List (Fig. 14 and Fig. 15)
Part
Size
Value @ Value @ Value @
315 MHz 433.92 MHz 868.3 MHz
Value @
915 MHz
Tol.
Description
C0
C1
C2
C3
C4
C5
CB0
CB1
CB2
CB4
CB5
CB6
CB7
CF1
CF2
CX1
CX2
CRX0
CTX0
CTX4
RB1
RF
RPS
L0
0603
0603
0603
0603
0603
0805
1210
0603
0603
0603
0603
0603
0603
0603
0603
0805
0805
0603
0603
0603
0603
0603
0603
0603
0.47 pF
3.9 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μF
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
100 pF
8.2 pF
150 pF
100 pF
10 pF
12 pF
100 Ω
33 kΩ
18 kΩ
56 nH
L1
0603
33 nH
LTX0
0603
XTAL
CERFIL
CERDIS
HC49
SMD
7x5
SMD
3.45x3.1
SMD
4.5x2
15 nH
NIP
4.7 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μF
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
68 pF
10 pF
56 pF
100 pF
10 pF
4.7 pF
100 Ω
33 kΩ
33 kΩ
33 nH
1.8 pF
1.8 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μF
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
150 pF
12 pF
18 pF
100 pF
10 pF
2.2 pF
100 Ω
33 kΩ
39 kΩ
4.7 nH
1.5 pF
1 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μF
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
82 pF
12 pF
15 pF
100 pF
10 pF
1.8 pF
100 Ω
33 kΩ
39 kΩ
3.9 nH
15 nH
4.7 nH
4.7 nH
15 nH
3.9 nH
3.9 nH
7.1505 MHz
±20ppm cal., ±20ppm temp.
SFECF10M7HA00
B_3dB = 180 kHz
CDSCB10M7GA136
±5% VCO tank capacitor
±5% ^{LNA output tank capacitor}
±5% MIX input matching capacitor
±10% data slicer capacitor
±5% demodulator output low-pass
capacitor, depending on data rate
±10% RSSI output low pass capacitor
±20% de-coupling capacitor
±10% de-coupling capacitor
±10% de-coupling capacitor
±10% de-coupling capacitor
±10% de-coupling capacitor
±10% de-coupling capacitor
±10% de-coupling capacitor
±10% loop filter capacitor
±5% loop filter capacitor
±5% RO capacitor for FSK (Δf = ±20 kHz)
±5% RO capacitor for FSK (Δf = ±20 kHz)
±5% RX coupling capacitor
±5% TX coupling capacitor
±5% TX impedance matching capacitor
±5% protection resistor
±5% loop filter resistor
±5% power-select resistor
VCO tank inductor
±5% from Würth-Elektronik (WE-KI series)
or equivalent part
LNA output tank inductor
±5% from Würth-Elektronik (WE-KI series)
or equivalent part
impedance matching inductor
±5% from Würth-Elektronik (WE-KI series)
or equivalent part
fundamental-mode crystal,
C_load = 10 pF to 15pF, C_{0, max} = 7 pF,
R_{m, max} = 70 Ω
ceramic filter from Murata,
or equivalent part
ceramic Discriminator from Murata,
or equivalent part
Note: - NIP – not in place, may be used optionally
- Antenna matching network according to paragraph 9
39010 07122
Rev. 008
Page 33 of 44
Data Sheet
June/07