th7122 Melexis Company, th7122 Datasheet - Page 33

• Manufacturer Part Number: th7122
• Description: Transceiver - 27 To 930mhz, Fsk/fm/ask, Multi-channel Lqfp32
• Manufacturer: Melexis Company

7.3
Note:
39010 07122
Rev. 008
CERDIS
CERFIL
CRX0
CTX0
CTX4
Part
XTAL
LTX0
RPS
CB0
CB1
CB2
CB4
CB5
CB6
CB7
CF1
CF2
CX1
CX2
RB1
C0
C1
C2
C3
C4
C5
RF
L0
L1
FSK Test Circuit Component List (Fig. 14 and Fig. 15)
- NIP – not in place, may be used optionally
- Antenna matching network according to paragraph 9
3.45x3.1
HC49
Size
4.5x2
1210
0603
0603
0603
0603
0603
0603
0805
0805
0603
0603
0603
0603
0603
0603
0603
0603
SMD
SMD
SMD
0603
0603
0603
0603
0603
0805
0603
0603
0603
7x5
315 MHz
Value @
0.47 pF
330 pF
330 pF
100 nF
100 pF
100 nF
100 pF
150 pF
100 pF
3.9 pF
1.5 pF
1.5 nF
8.2 pF
100 Ω
33 kΩ
18 kΩ
56 nH
33 nH
15 nH
10 nF
10 μF
10 nF
10 nF
10 pF
12 pF
1 nF
433.92 MHz
Value @
330 pF
330 pF
100 nF
100 pF
100 nF
100 pF
4.7 pF
1.5 pF
1.5 nF
4.7 pF
100 Ω
10 nF
10 μF
10 nF
10 nF
68 pF
10 pF
56 pF
10 pF
33 kΩ
33 kΩ
33 nH
15 nH
15 nH
1 nF
NIP
±20ppm cal., ±20ppm temp.
CDSCB10M7GA136
SFECF10M7HA00
B
7.1505 MHz
3dB
= 180 kHz
868.3 MHz
Value @
330 pF
330 pF
100 nF
100 pF
100 nF
150 pF
100 pF
4.7 nH
4.7 nH
3.9 nH
1.8 pF
1.8 pF
1.5 pF
1.5 nF
2.2 pF
100 Ω
33 kΩ
39 kΩ
10 nF
10 μF
10 nF
10 nF
12 pF
18 pF
10 pF
Page 33 of 44
1 nF
915 MHz
Value @
330 pF
330 pF
100 nF
100 pF
100 nF
100 pF
3.9 nH
4.7 nH
3.9 nH
1.5 pF
1.5 pF
1.5 nF
1.8 pF
100 Ω
10 nF
10 μF
10 nF
10 nF
82 pF
12 pF
15 pF
10 pF
33 kΩ
39 kΩ
1 pF
1 nF
FSK/FM/ASK Transceiver
±5%
±10% data slicer capacitor
±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
Tol.
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
VCO tank capacitor
LNA output tank capacitor
MIX input matching capacitor
demodulator output low-pass
capacitor, depending on data rate
loop filter capacitor
RO capacitor for FSK (Δf = ±20 kHz)
RO capacitor for FSK (Δf = ±20 kHz)
RX coupling capacitor
TX coupling capacitor
TX impedance matching capacitor
protection resistor
loop filter resistor
power-select resistor
VCO tank inductor
from Würth-Elektronik (WE-KI series)
or equivalent part
LNA output tank inductor
from Würth-Elektronik (WE-KI series)
or equivalent part
impedance matching inductor
from Würth-Elektronik (WE-KI series)
or equivalent part
fundamental-mode crystal,
C
R
ceramic filter from Murata,
or equivalent part
ceramic Discriminator from Murata,
or equivalent part
load
m, max
= 10 pF to 15pF, C
= 70 Ω
Description
27 to 930MHz
TH7122
0, max
Data Sheet
= 7 pF,
June/07