DC1112A - Schematic

1
-10
10
1
0
0
-2.5
2.5
1
0
1
-2.5
11 SCK
10 SCLR
12 RCK
13 G
R14
7.5
100
C24
100pF
D2
BAT54C
11 SCK
10 SCLR
12 RCK
13 G
R15
JP1
G
G
G
G
G
G
G
J1
HD2X7-079-MOLEX
V+ 12
5V
CS 64
SCK/SCL
MOSI/SDA 75
MISO
GND
GND
GND
EEVCC
EESDA
EESCL
EEGND
AUX
13
8
3
A
10
9
11
12
14
100
C25
100pF
16 VCC Q'H
QH
QG
QF
QE
8 GND QD
QC
14 SER QB
QA
CS/ CLK SDI SDO
C23
0.1uF
R6
1K
R7
1K
R8
100
C21
0.1uF
VCC C22
0.1uF
R9
4.99K
U11
24LC025-I /ST
1 A0
2 A1
VCC 8
WP 7
3 A2
4 VSS
R10
20K
R11
R12
4.99K 4.99K
R13
20K
2
4
U10
NC7SZ14P5X
SCL 6
SDA 5
11 SCK
10 SCLR
1
52 S2
47 S1
S0
16 A2
17 A1
18 A0
R4
4.99K
4
D
V+ C9 0805
0.1uF
VOSA
IOUT1B 56
IOUT2B 46
2
-
3
+
VOSB
VOSB 57
U5A
LT1469CS8
1
C12
0.1uF 0805
E5
E6
OUTB
GND
V- C13
30pF
IOUT1C 27
IOUT2C 34
VOSC
VOSC 26
IOUT1D 24
IOUT2D 14
6
-
5
+
VOSD
VOSD 25
E8
7
U5B
LT1469CS8
C14
30pF
E9
C
OUTC
GND
V+ C15 0805
0.1uF
C17
0.01uF
UPD
D_/S
WR_
CLR_
MSPAN
6
-
5
+
3
2
1 NC
2 VIN
C19
10uF,25V 3 NC
1206
4 GND
VOUT 6
TRIM 5
C20
10uF,25V
1206
LT1236ACS8-5
JP6
VOSA
3
2
1
EXT
GND
HD1X3-079
12 RCK
13 G
E15
VOSA
VOSA
JP2
REF2 REF1
VCC
1
2 EXT
3
4
5
6
5V
HD2X3-079
NC 8
NC 7
JP7
VOSB
3
2
1
EXT
GND
HD1X3-079
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
3
REF1
JP5
VCC
REF
JP8
VOSC
3
2
1
EXT
GND
HD1X3-079
APPROVALS
TITLE:
APPROVED:
DESIGNER: KIM T.
SIZE
A
DATE:
2
E11
GND
0805
VCC
JP3
1 6
5
4
3 S1
2
1
0
HD2X3-079
S2
E17
VOSC
VOSC
TECHNOLOGY
DRAWN:
ENGINEER: MARK T.
E10
OUTD
1
C18
0.1uF
MANUAL SPAN CONTROL
E13
REF1
CONTRACT NO.
CHECKED:
+
B
S0
JP4
5 1
3 MSPAN
1
0
HD2X3-079
6
4
2
REG
HD1X3-079
5V
E16
VOSB
VOSB
E12
REF2
E14
VCC
1
2
3
-
3
V-
REF2
D3
BAT54C
2
U7A
LT1469CS8
7
U7B
LT1469CS8
U8
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
IOUT1A 59
IOUT2A 2
VOSA 58
U1
LTC2755CUP-16
R3
4.99K
1
9
7
6
5
4
3
2
1
15
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
DX1
DX0
READ
V+
R16
U9
74VHC595MTC
S2
S1
S0
R5
4.99K
12 RCK
13 G
100
4
5
6
7
8
9
10
11
12
36
37
38
39
40
41
42
43
44
R2
4.99K
11 SCK
10 SCLR
D_/S
READ
WR_
CLR_
MSPAN
UPD
C26
100pF
5V
U6
74VHC595MTC
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
DX1
DX0
A2
A1
A0
R1
4.99K
16 VCC Q'H 9
QH 7
C16
QG 65
0.1uF
QF
QE 43
8 GND QD
QC 21
14 SER QB
QA 15
5
B
G
D15
D13
D11
D9
D7
D5
D3
D1
DX1
S2
S1
A2
A0
3
S0
A1
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
35 36
37 38
39 40
HD2X20-100
GND
8
PARALLEL INTERFACE
OUTA
C8
30pF
8
VC
D14
D12
D10
D8
D6
D4
D2
D0
DX0
U4
74VHC595MTC
16 VCC Q'H 9
QH 7
C11
QG 65
0.1uF
QF
QE 43
8 GND QD
QC 21
14 SER QB
QA 15
C10
10uF,25V
1206
8
1
E2
4
0
U2B
LT1469CS8
REF1
8
5
E1
7
4
-5
+
8
0
-
5
4
1
6
4
0
RFBA 60
10
4
0
REFA 62
ROFSA 61
1
RIN2
RCOM2
REFC
ROFSC
RFBC
REFD
ROFSD
RFBD
0
C6
0805
0.01uF V-
32
31
30
29
28
21
22
23
0
C5 VCC
0.1uF
1
C4
0.1uF
+
4
5
-
REFB 53
ROFSB 54
RFBB 55
0
2
1
E7
0
C7
10uF,25V
1206
5V
AMP V-
0
3
C2
30pF
0805
GND
GND
GND
GND
GND
GND
1
E4
3
GND
D1
BAT54C
0
2
E3
3
AMP V+
V+
SPAN
1
V+ C1
0.1uF
65
19
3
13
35
45
D
FOR JP3 AND JP4
S2 S1 S0
U2A
LT1469CS8
2
16 VCC Q'H 9
QH 7
C3
QG 65
0.1uF
QF
QE 43
8 GND QD
QC 21
14 SER QB
QA 15
RIN1 64
RCOM1 63
2. INSTALL SHUNTS ON JUMPERS AS SHOWN.
U3
74VHC595MTC
VCC
VDD 15
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE IN MICROFARADS, 0402.
2
D_/S
READ
UPD
WR_
CLR_
MSPAN
NOTES: UNLESS OTHERWISE SPECIFIED
3
8
4
48
49
50
51
20
33
5
JP9
VOSD
3
EXT
2
1
GND
HD1X3-079
VOSD
E18
VOSD
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
QUAD, PARALLEL, IOUT, 16-BIT DAC
DWG NO.
DC1112A-1 * LTC2755CUP-16
Tuesday, October 02, 2007
SHEET 1
1
REV
A-1
OF 1
A
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