th7120 ETC-unknow, th7120 Datasheet - Page 26

• Manufacturer Part Number: th7120
• Description: 930mhz Fsk/fm/ask Transceiver
• Manufacturer: ETC-unknow

Fixed-Frequency FSK Application Circuit with AFC
3901007120
Rev. 005
Circuit Features
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Automatic Frequency Control (AFC)
Increases input frequency acceptance range up to RF
Compensation of calibration tolerances of ceramic resonator
Compensation of temperature tolerances of ceramic resonator
Figure 9: Test circuit for fixed-frequency FSK operation at 433 MHz with AFC
RF output
RF input
matching
Antenna
network
CB1
CERFIL
CTX0
CRX0
C1
L1
C2
OUT_MIX
LTX0
CB4
RPS
CB2
VEE
OUT_LNA
GAIN_LNA
IN_MIX
VEE
CB3
OUT_PA
IN_LNA
C0
CB5
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RB
L0
CF2
CP1
VD
CB6
C3
R2
RF
CF1
C4
nom
FSK/FM/ASK Transceiver
50 kHz
RE/SCLK
ASK/FSK
C5
FSK_SW
IN_DTA
VCC
RO
CB0
VEE
RSSI
300 to 930MHz
CB7
CX2
XTAL
TH7120
VCC
VCC
VCC
CX1
enable
enable
output
VCC
input
FSK
FSK
RX
TX
Data Sheet
Jan. 2002