TH71101_13 Datasheet, PDF (16/20 Pages) Melexis Microelectronic Systems – FSK/ASK Receiver

4.3 ASK Reception
4.3.1 ASK Application Circuit
TH71101
315/433MHz
FSK/ASK Receiver
RSSI
C16 C17
ASK output
R4
VCC
XTAL
25 VEE
C1
26 RO
VCC
27 VCC
ENRX
R1
28 ENRX
C3 _{29 LF}
30 VEE
31 IN_LNA
32 VCC
VCC
L2
1
64
1 3 ^SAWFIL
16
OUT_IFA 15
VCC 14
TH71101 FBC2 13
FBC1 12
IN_IFA 11
VEE 10
OUT_MIX2 9
23456 78
C7
VCC
C11
C9
R2 ^C10
CERFIL
L1
50
RF input
L3
C6
CB*
VCC
* each Vcc pin with blocking cap of 330pF
* one global Vcc blocking cap of 33nF
Fig. 5: Test circuit for ASK reception
39010 71101
Rev. 018
Page 16 of 21
Data Sheet
Jun/13