th7121 ETC-unknow, th7121 Datasheet - Page 23

• Manufacturer Part Number: th7121
• Description: 300 To 930mhz Fsk/fm/ask Transceiver
• Manufacturer: ETC-unknow

Fixed-Frequency ASK Application Circuit
3901007121
Rev. 001
RF output
RF input
matching
Antenna
network
CB1
Figure 7: Test circuit for fixed-frequency ASK operation at 868 MHz
CERFIL
CTX0
CRX0
C1
L1
C2
OUT_MIX
LTX0
CB4
CB2
RPS
VEE
OUT_LNA
GAIN_LNA
IN_MIX
VEE
OUT_PA
IN_LNA
CB3
L0
C0
CB5
VD1
Page 23 of 28
RB
RF1
CF1
RF
CB6
C3
CF2
FSK/FM/ASK Transceiver
RE/SCLK
ASK/FSK
C5
FSK_SW
IN_DTA
VCC
RO
CB0
VEE
RSSI
300 to 930MHz
CB7
CX2
XTAL
TH7121
VCC
VCC
VCC
CX1
enable
enable
output
VCC
ASK
input
ASK
RX
TX
Data Sheet
Jan. 2002