TH7121 Datasheet, PDF (22/28 Pages) List of Unclassifed Manufacturers – 300 to 930MHz FSK/FM/ASK Transceiver

TH7121
300 to 930MHz
FSK/FM/ASK Transceiver
Programmable Channel ASK Application Circuit
VCC
RF input
RF output
CB3
CB2 _L0
RB
CF1
CF2
VD1 _RF
RF1
Lock
detect
PRELIMINARY RPS
C0
LTX0
Antenna
matching
network
CB1
CTX0
CRX0
L1
C1
C2
OUT_PA
IN_LNA
VEE
OUT_LNA
GAIN_LNA
IN_MIX
VEE
OUT_MIX
CB6
SDEN
SDTA
RE/SCLK
VCC
ASK/FSK
SCLK
CB7
VCC
IN_DTA
FSK_SW
RO
ASK
CX2 input
CX1
XTAL
VEE
CERFIL
CB5
C3
RSSI
ASK
output
C5
VCC
CB4
CB0
VCC
Figure 6: Test circuit for programmable channel ASK operation
3901007121
Rev. 001
Page 22 of 28
Data Sheet
Jan. 2002