1
1
2
2
3
3
4
4
5
5
6
6
D
D
C
C
B
B
A
A
Title
Number
Revision
Size
B
Date:
2010-7-2
Sheet of
File:
C:\Documents and Settings\..\LTDN42-47T18GAU_KEY_1959_B.SCHDOC
Drawn By:
C1
47uF/10V
C2
0.1uF
C6
0.1uF
VSS
14
RST/NMI/SBWTDIO
10
TEST/SBWTCK
11
XIN/P2.6/TA1
13
XOUT/P2.7
12
P1.7/CAOUT/CA7/TDO/TDI
9
P1.6/TA1/CA6/TDI/TCLK
8
P1.5/TA0/CA5/TMS
7
P1.4/SMCLK/CA4/TCK
6
P1.3/CAOUT/CA3
5
P1.2/TA1/CA2
4
P1.1/TA0/CA1
3
P1.0/TACLK/ACLK/CA0
2
VCC
1
N1
MSP430F2011PW
R14
3.3K
3.3V
RST
TEST
R12
4.7K
PWM_1
1
2
P1
MENU
1
2
P2
INPUT
1
2
P3
VOL+
1
2
P4
VOL-
1
2
P5
CH+
1
2
P6
CH-
C7
0.1uF
R27
4.7K
PWM_2
PWM_1
LED_CON
R1
100K
R2
100K
R3
100K
R4
100K
3.3V
R9
100K
R8
100K
R7
100K
Sensor_1
Sensor_2
Sensor_3
Sensor_4
Ca_Out
Ca_Ref
Sensor_1
Sensor_2
Sensor_3
Sensor_4
Ca_Out
Ca_Ref
PWM_2
R15
3.3K
V1
BC847BW
R16
100
R17
100
R18
100
R19
100
R20
100
R21
100
1
2
LED1
1
1
2
2
LED2
1
2
LED3
1
2
LED4
1
2
LED5
1
2
LED6
3.3V
LED_CON
1
2
3
4
XPA1
PIN4
3.3V
TEST
RST
3.3V
AD_1
AD_2
AD_1
AD_2
接口部分:
1
、
XPA2
、
XPA3
接口为为
2.0
间距卧式直插插座;
2
、
XPA1
为调试接口,留出焊盘,方便调试;
3
、
I2C
接口也为后期调试接口,最好有;如果影响
PCB
布局,
可以不要,上面的两个电阻也可一并舍去;
LED
封装为
0603
,位于按键下方,
抠孔透光;
Sensor_5
Sensor_5
R5
100K
3.3V
3.3V
MARK
M
MARK
1
MARK
2
MARK
3
MARK
4
MARK
5
MARK
6
MARK
7
MARK
8
MARK
9
MARK
10
MARK
11
MARK
12
MARK
13
MARK
14
MARK
15
MARK
Designator15
MARK
Designator18
MARK
Designator20
1
2
P7
POWER
R22
100
1
1
2
2
LED7
V2
BC847BW
1
1
1
1
2
2
4
4
LS1
Buzzer
C4
1uF
R13
R750
D2
IN4148
3.3V
LED_CON
R11
3.3k
R10
R680
D1
IN4148
1
1
2
2
LS2
Buzzer
1
2
3
4
5
6
XPA2
PIN4
ARROW
AR2
RSAG7.820.1959
(VER.B)