th7120 ETC-unknow, th7120 Datasheet - Page 4

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

3901007120
Rev. 005
Pin Definition and Description
Pin No.
1
2
3
4
8
5
6
7
IN_IFA
VCC_IF
IN_DEM
INT2
OUT_DTA output
INT1
OUT_DEM analog I/O
RSSI
Name
input
supply
analog I/O
output
input
output
I/O Type
INT1
5
VEE
RSSI
OA1
7
VCC
IN_DEM
OUT_DTA
Functional Schematic
IN_IFA
3
INT2
1
77k
4
8
200k
2.2k
VCC
VEE
Page 4 of 28
+
120
1.5p
VCC
VEE
VCC
10µA
3.1k
VEE
VCC
VCC
VEE
OA2
bias
VEE
VCC
140µA
VCC
3.1k
100µA
5µA
5µA
OUT_DEM
VEE
VEE
FSK/FM/ASK Transceiver
6
positive supply of LNA, MIX,
inverting inputs OA1 and
IF amplifier input, approx.
2 k
IFA, FSK Demodulator, PA,
OA1 and OA2
IF amplifier output and de-
modulator input, connection
to external ceramic discrimi-
nator
integrator output OA2
output OA1
OA2
demodulator output and non-
inverting input OA1
RSSI output
single-ended
300 to 930MHz
Description
TH7120
Data Sheet
Jan. 2002