蓝牙音箱原理图

P3.5(T1) (A13)P2.5
P3.6(WR) (A12)P2.4
P3.7(RD) (A11)P2.3
XTAL2 (A10)P2.2
XTAL1
(A9)P2.1
GND
(A8)P2.0
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
VCC
GND
1 3 2
PWR.5
4
5
GND
GND
U6
VCC
RP4
B
1
2
3
4
VCC
5
6
7
C5
8
0.1F
9
RX 10
R23
TX 11
1K
P3.2 12
13
14
15
GND
P3.6 16
C9
P3.7 17
18
19
22pF Y2
20
C10
12MHz
P1.0
VCC
P1.1
(AD0)P0.0
P1.2
(AD1)P0.1
R6 R7 R8 10K 10K 10K
Relay2
GND
GND
D 1
GND 2
Title
D
Size
Number
Revision
A4
Date: File:
2019/5/26 D:\Documents\..\原理图.SchDoc
Sheet of Drawn By:
3
4
L 蓝牙音频接收模块
GND VCC MUTE KEY
C
VCC
VCC
Байду номын сангаас
VCC
P3.4
1
4
23
KEY1
P3.5
1
4
23
KEY2 GND
R20
P2.0
1K
b
Buzzer
+
e Q3 PNP
c
LED1
R1 1K
R3 P3.2
1K
e Q1
PNP R5
R4
b
10K P3.3 1K
c
Relay1
e Q2 PNP
b c
C P0.0 1 P0.1 2 P0.2 3 P0.3 4 P0.4 5 P0.5 6 P0.6 7 P0.7 8 VCC
排阻
P2.7 P2.6 P2.5 P2.4 P2.3 P2.2 P2.1 P2.0
GND
STC89C51/52 GND
22pF C
6
LS1
GND
功放
VCC
LS2
B
GND VCC
R
P1.3
(AD2)P0.2
P1.4
(AD3)P0.3
P1.5
(AD4)P0.4
P1.6
(AD5)P0.5
P1.7
(AD6)P0.6
RST
(AD7)P0.7
P3.0(RXD) EA/VPP
P3.1(TXD)ALE/PROG
P3.2(INT0) PSEN
P3.3(INT1) (A15)P2.7
P3.4(T0) (A14)P2.6
1
2
3
4
VCC
1
2
3
LCD1602
A
电源开关
A
VSS VDD V0 RS RW EN D0 D1 D2 D3 D4 D5 D6 D7 A K
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
GND
VCC
3.3K
P2.6 P2.7 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7