TH71102
315/433MHz
FSK/FM/ASK Receiver
Pin No.
11
Name
IN_IFA
I/O Type
analog
input
IN_IFA
11
VEE
VCC
Functional Schematic
VCC
VCC
Description
IFA input, approx. 2.2kΩ
input impedance
FBC1
12
12
FBC1
analog I/O
2.2k
2.2k
200µA
VEE
to be connected to external
IFA feedback capacitor
13
FBC2
analog I/O
FBC2
13
VEE
VEE
to be connected to external
IFA feedback capacitor
14
15
VCC_IF
OUT_IFA
supply
analog I/O
OUT_IFA
15
40µA
positive supply of
IFA and DEMOD
IFA output and MIX3 input
(of DEMOD)
16
IN_DEM
analog
input
IN_DEM
16
DEMOD input, to MIX3 core
47k
17
18
VCC_BIAS
OUT_OA
supply
analog
output
OUT_OA
18
50
Ω
positive supply of general
bias system and OA
OA output, 40uA current
drive capability
19
OAN
analog
input
OAN
50
Ω
negative OA input
20µA
50
Ω
OAP
20
OAP
analog
input
positive OA input
19
20
39010 71102
Rev. 013
Page 7 of 22
Data Sheet
June/07
MELEXIS [ Melexis Microelectronic Systems ]
