Schematics

1 2 3 4
A
B
C
D
4
321
D
C
B
A
Title
Number RevisionSize
A4
Date: 26-Feb-2020 Sheet of
File: D:\
工作资料 \原理图\原理图\认证线路.D d b
Drawn By:
S1
SW -P B
S2
SW -P B
B+
两通发射原理图
01
1
1 of 1
LIC HONGF A
D1
IN4148
ANT
L2
4.7uH
Q1
c945
Q2
945
R2
220K
C1
47P
VCC
C3
104P
C2
47P
L1
8.2uH
R1
10K
Y1
27.145MHz
L3
2.2uH
U1
TX-3
R2
15K