th7121 ETC-unknow, th7121 Datasheet - Page 22

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

Programmable Channel ASK Application Circuit
3901007121
Rev. 001
RF output
RF input
matching
Antenna
network
CB1
Figure 6: Test circuit for programmable channel ASK operation
CERFIL
CTX0
CRX0
C1
L1
C2
OUT_MIX
LTX0
CB4
CB2
RPS
OUT_PA
IN_LNA
VEE
OUT_LNA
GAIN_LNA
IN_MIX
VEE
CB3
L0
C0
CB5
VD1
RB
RF1
Page 22 of 28
CF1
RF
CB6
C3
CF2
FSK/FM/ASK Transceiver
RE/SCLK
ASK/FSK
C5
FSK_SW
IN_DTA
VCC
RO
detect
Lock
CB0
VEE
RSSI
CB7
SDEN
SCLK
SDTA
CX2
XTAL
300 to 930MHz
TH7121
VCC
VCC
VCC
CX1
output
VCC
ASK
input
ASK
Data Sheet
Jan. 2002