th7122 Melexis Company, th7122 Datasheet - Page 35

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

7.5
Note:
39010 07122
Rev. 008
CERFIL
CRX0
Part
CTX0
CTX4
XTAL
LTX0
CPS
RPS
CB0
CB1
CB2
CB5
CB6
CB7
CF1
CF2
CX1
RB1
C0
C1
C2
C3
C5
RF
L0
L1
ASK Test Circuit Component List (Fig. 16)
- Antenna matching network according to paragraph 9
3.45x3.1
HC49
Size
0603
0603
0603
0603
0603
1210
0603
0603
0603
0603
0603
0603
0603
0603
0805
0603
0603
0603
0603
0603
0603
0603
0603
0603
SMD
SMD
7x5
Value @
315 MHz
330 pF
100 nF
100 pF
100 nF
100 pF
100 pF
1.8 pF
3.9 pF
1.5 pF
1.5 nF
100 Ω
33 kΩ
18 kΩ
47 nH
33 nH
15 nH
10 nF
10 μF
10 nF
39 pF
18 pF
10 pF
12 pF
1 nF
±20ppm cal., ±20ppm temp.
434 MHz
Value @
330 pF
100 nF
100 pF
100 nF
100 pF
100 pF
2.2 pF
4.7 pF
1.0 pF
1.5 nF
4.7 pF
100 Ω
33 kΩ
33 kΩ
27 nH
15 nH
15 nH
10 nF
10 μF
10 nF
39 pF
18 pF
10 pF
SFECF10M7HA00
1 nF
B
8.0000 MHz
3dB
= 180 kHz
Page 35 of 44
915 MHz
Value @
330 pF
100 nF
100 pF
100 nF
100 pF
3.9 nH
4.7 nH
3.9 nH
1.8 pF
1.5 pF
1.5 nF
1.8 pF
100 Ω
33 kΩ
43 kΩ
10 nF
10 μF
10 nF
39 pF
18 pF
10 pF
10 pF
1 pF
1 nF
±10%
±10%
±20%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
Tol.
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
FSK/FM/ASK Transceiver
VCO tank capacitor
LNA output tank capacitor
MIX input matching capacitor
data slicer capacitor
RSSI output low pass capacitor
de-coupling capacitor
de-coupling capacitor
de-coupling capacitor
de-coupling capacitor
de-coupling capacitor
de-coupling capacitor
loop filter capacitor
loop filter capacitor
power-select capacitor
RO capacitor
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
load
m, max
= 10 pF to 15pF, C
= 70 Ω
Description
27 to 930MHz
TH7122
0, max
Data Sheet
= 7 pF,
June/07