th7122 Melexis Company, th7122 Datasheet - Page 31

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

7
7.1
39010 07122
Rev. 008
Application Circuit Examples
FSK Application Circuit Programmable User Mode (internal AFC option)
Fig. 14: Test circuit for FSK operation in Programmable User Mode (internal AFC option)
TX_OUT
RX_IN
Combining
network
L1
CB1
RB1
C1
LTX0
CRX0
CTX0
C2
CB2
CB4
CTX4
25
26
27
28
29
30
32
31
RPS
OUT_PA
IN_LNA
VEE_LNA
OUT_LNA
GAIN_LNA
IN_MIX
VEE_IF
OUT_MIX
CB5
CF2
1
2
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TH7122
3
RF
CF1
RP
C0
C3
4
L0
CB6
5
6
C4
7
detect
Lock
C5
VCC_DIG
RE/SCLK
ASK/FSK
FSK_SW
IN_DTA
8
RO
FSK/FM/ASK Transceiver
16
15
14
13
12
10
VEE_RO
11
9
RSSI
SDEN
CB7
SCLK
SDTA
CX2
XTAL CX1
VCC
3wire bus
output
input
FSK
FSK
27 to 930MHz
CB0
TH7122
Data Sheet
June/07