OUTN
GND
OUTP
GND
RSSI
GND
OUT_OA
GND
FM输出
C_OPT
1 2
C14
C16
L_OPT
R5
1 2
R4
R3
CB3
VCC
R6
C15
24
VEE 22
OAP 20
OAN 19
1 2
OUTP 23
RSSI 21
VCC 17
VCC
ENRX
1 2
CB2
27 VCC
28 ENRX
VEE
GAIN_LNA
OUT_LNA
IN_MIX1
VEE
IF1P
IF1N
C5
1
CB1
2
3
4
5
6
7
8
C7
C8
CB5
L4
C6
L5
1 2
VCC
图。 3： FM接收电路原理图
8 16
C13
16
OUT_IFA 15
VCC 14
FBC2 13
VCC
C_RO
26 RO
OUT_OA 18
390127112101
修订版004
1 2
1 2
XTAL
C1
R_Q
CERRES
CP
C12
CB4
C9
FBC1 12
IN_IFA 11
VEE 10
OUT_MIX2 9
25 VEE
电路图FM接收
GND
RO
VCC
C11
C10
R2
R1
29 LF
30 VEE
31 IN_LNA
C3
TH71112
IN_LNA
C2
SAWFIL
L2
32 VCC
L1
C4
CERFIL
CB8
VCC
L3
CB6
CB7
868 / 915MHz的接收器
评估板说明
EVB71112
EVB说明
Aug/02
GND
VCC
