EVB71101
315/433MHz Receiver
Evaluation Board Description
2
2.1
2.1.1
Application Circuits
FSK Application Circuit
Circuit Diagram for FSK Reception
OUT_OA
GND
1 2
FSK output
CB3
VCC
OAN 19
OUT_OA 18
VCC 17
OUTP
GND
1 2
C15
C16
C17
XTAL
C1
R5
R4
OUTP 23
RSSI 21
24
OAP 20
VEE 22
RSSI
GND
1 2
GND
RO
VCC
ENRX
GND
IN_LNA
1 2
CERDIS
16
VCC
1 2 3
C_RO
CB2
R1
C3
25 VEE
26 RO
27 VCC
28 ENRX
29 LF
30 VEE
OUT_IFA 15
VCC 14
C12
VCC
CB4
C9
C11
C10
TH71101
GAIN_LNA
OUT_LNA
IN_MIX1
FBC2 13
FBC1 12
IN_IFA 11
VEE 10
OUT_MIX2 9
IF1N
VCC
R2
L1
50
6
1
SAWFIL
3
4
L2
31 IN_LNA
32 VCC
VEE
IF1P
VEE
CERFIL
CB1
1
2
3
4
5
6
7
8
C7
CB5
RL1
RL2
CB6
L3
VCC
CB8
C6
CB7
GND
VCC
2 1
Circuit Features
•
•
Tolerates input frequency variations
Well-suited for NRZ, Manchester and similar codes
39012 71101 01
Rev. 011
Page 6 of 14
EVB Description
June/07
MELEXIS [ Melexis Microelectronic Systems ]
