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Mod. ESVA-1C
1.0
Microcontroller
B
1 1Friday, October 24, 2003
Title
Size Document Number Rev
Date: Sheet of
N COM
PLL_DTA
CH3
PLL_EN
EN
RW
ADC_EN
RX
SW1
TXD
RXD
SW1
RW
TXD
CH0
RS
SW1RXD
PLL_LOCK
PLL_CLK
SDTA
SETUP
RS
EN
CH2
PLL_EN
RF_ONOFF
PLL_LOCK
SCLK
ADC_EN
SETUP
SDTA
CH1
PROG.
TX
RF_ONOFF
SCLK
LAMP
D1
LAMP
D4
D3
D1
D5
D0
D6
D2
D4
D7
D[0:7]
D2
D3
D6
D1
D7
D5
D0
D2
SW2
D0
D7
SW2
D4
D3
D5
D6
SW2
PLL_CLK
PLL_DTA
+5V
+5V
+5V
+5V
+5V
+5V
+5V
LCD1 DISPLAY V20350
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
GND
VCC
V0
RS
RW
EN
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
LED -
LED +
NC
_GND
_VCC
_V0
_RS
_RW
_EN
_DB0
_DB1
_DB2
_DB3
_DB4
_DB5
_DB6
_DB7
_LED-
_LED+
_NC
JP1
J16
DJ2
Q1
BC327
+
C50
22MF / 16V
U6 T89C51RD2
2
3
4
5
6
7
8
9
10
11
13
14
15
16
17
18
19
20
21
24
25
26
27
28
29
30
31
32
33
36
37
38
39
40
41
42
43
35
22
231
12
34
44
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
RxD
TxD
INT0
INT1
T0
T1
WR
RT
XTAL2
XTAL1
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
PSEN
ALE
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
EA
GND
CA
B
D
VCC
U7 MAX232
1
2
3
4
5 6
7
8
16
15
14
13 12
11
10
9
C1+
V+
C1-
C2+
C2- V-
T2 OUT
R2 IN
VCC
GND
T1 OUT
R1 IN R1 OUT
T1 IN
T2 IN
R2 OUT
U4 ADC0834
3
4
5
6
1
9
8
7
11
2
12
13
10
14
CH0
CH1
CH2
CH3
Vref OUT
Vref IN
AGND
DGND
SARS
CS
CLK
DI
DO
VCC
C
R53
10K
12
3
4
5
6
7
8
9
C49
33pF
C48
33pF
Y1
11.0592MHz
R60 NC
C52
0.1MF
R59 NC
R62 10K
C55
0.1MF
C47
0.1MF
+
C46
10MF / 35V
J17
DJ2
+
C51 100MF / 25V
R64
10K
+
C59 1MF / 16V
R55 10K
R65
1K2
R61 NC
R58 10K
R56 10K
R57 10K
+
C54
1MF / 16V
C53
0.1MF
+
C56 1MF / 16V
+
C58 1MF / 16V
+
C57 1MF / 16V
R66 6k8
R72 6k8
R70 6k8
R69 6k8
R68 6k8
R67 6k8
R71 6k8
R63 1K5 R54 1K
D9 LL4148
U5
MAX810L
1
2
3
GND
RST
VCC
VU Meter
ENABLE
RX RS232
TX RS232
PLL LOCK
SW2
DATA
RF ON/OFF
GND
CLOCK
Temperature
Reflected PW
SW1
Forward PW
+5V