DC1620A - Schematic

5
4
3
2
1
REVISION HISTORY
VDD
ECO
R17
100
0201
CLARENCE M.
GND
10 1%
1
2
3
4
0.01uF
R39
33.2
1%
10 1%
C51
R28
OPT
2
R27
OPT
4.7pF
4
C9
C10
8.2pF
8.2pF
1
R40
33.2
1%
C7
0.01uF
R83
OPT
R82
OPT
C23
R59
AIN1+
R20
100
0201
2.2uF
10 1%
R10
VDD
10 1%
R60
C11
OPT
C13
C20
C12
0.1uF
0.01uF
0.1uF
VCM1
C
CN1
2.2uF
C15
0.1uF
1
8
2
7
3
6
4
5
*U2
VCM1
49.9 1%
AIN1+
AIN1-
C21
PAR/SER
AIN2+
AIN2-
0.1uF
PAR/SER
VCM2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
VDD
VCM1
GND
AIN1+
AIN1GND
REFH
REFL
REFH
REFL
PAR/SER
AIN2+
AIN2GND
VCM2
VDD
24
R21
100
0201
D1_4_5+
D1_4_5D1_2_3+
D1_2_3D1_0_1+
D1_0_1OVDD
OGND
CLKOUT+
CLKOUTD2_14_15+
D2_14_15D2_12_13+
D2_12_13D2_10_11+
D2_10_11-
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
R66
L6
T5
MABAES0060
5
3
T4
MABA-007159-000000
5
1
2
4
3
56uH
AIN2
0.01uF
R67
33.2
1%
C62
R32
OPT
2
OVDD
R62
100
0201
0.1uF
R61
100
0201
1
R70
33.2
1%
C57
0.01uF
R31
OPT
8.2pF
R71
AIN2+
10 1%
10 1%
VCM2
49.9 1%
OPT
C65
C66
C67
0.01uF
0.1uF
0.1uF
BEAD
8
7
6
5
R46 100 1%
R76
100
0201
3
22
27
46
13
24
EN12
EN34
EN56
EN78
EN
IN1IN1+
IN2+
IN2IN3IN3+
IN4+
IN4IN5IN5+
IN6+
IN6IN7IN7+
IN8+
IN8VBB
OUT1OUT1+
OUT2+
OUT2OUT3OUT3+
OUR4+
OUT4OUT5OUT5+
OUT6+
OUT6OUT7OUT7+
OUT8+
OUT8-
T3
5
C60
OPT
A
C59
4
OPT
MABA-007159-000000
0.01uF
J4
1
2
3
R2
49.9
1%
R1
49.9
1%
R51
OPT
0.01uF
C27 0.1uF
VCC_IN
1
2
3
4
SCL
SCL
SHT 2
SCL
SDA
SDA SHT 2
NOTES: UNLESSOTHERWISE SPECIFIED,
1. ALL CAPACITORS AND RESISTORS ARE 0402.
R79 0
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
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
R52
OPT
R54 0
R55
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
R25 4.99K 1%
SDA
100 1%
0
U1 24LC025-I/ST
8
A0 VCC 7
A1
WP 6
A2 SCL 5
A3 SDA
R26 4.99K 1%
CUSTOMER NOTICE
R4
OPT
R53 0
VSS
OPT
C3
ENCC1
+3.3V
FAST DAACS BOARD ID CIRCUITRY
45
44
43
42
41
40
39
38
35
34
33
32
31
30
29
28
R78 0
R50
VCC_IN
R29 4.99K 1%
B
1
2
23
36
37
R5
J3
SDA
R24
100K
4
5
6
7
8
9
10
11
14
15
16
17
18
19
20
21
R75
100
0201
R49
OPT
ENC+
VSS
SCL
R68
100
0201
R48 0
C2
0.01uF
C
OUT-ENABLE1
C61
0.01uF
R47 0
RIN+
VCC
DOUT+
DOUT-
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
79
81
83
85
87
89
91
93
95
97
99
+3.3V
R77
100
0201
VDD
L5
RINGND
EN
GND
FIN1101K8X
OUT-ENABLE1
R74
C16
R64
100
0201
R72
100
0201
R73
B
1
2
3
4
U8
FIN1108
CS
SCK
SDI
C64
8.2pF
R84
OPT
65
R69
100
0201
SHT 2
C63
R85
OPT
PAD
U7
OUT-ENABLE1
ENC+
ENCCS
SCK
SDI
4
R56
86.6
1%
12
25
26
47
48
+3.3V
10 1%
4.7pF
R57
86.6
1%
45
44
43
42
41
40
39
38
35
34
33
32
31
30
29
28
C56
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
C58
VDD
AIN2-
VDD
ENC+
ENCCS
SCK
SDI
D2_0_1D2_0_1+
S2_2_3S2_0_3+
D2_4_5D2_4_5+
D2_6_7D2_6_7+
D2_8_9D2_8_9+
10 1%
VBB
OUT1OUT1+
OUT2+
OUT2OUT3OUT3+
OUR4+
OUT4OUT5OUT5+
OUT6+
OUT6OUT7OUT7+
OUT8+
OUT8-
R23
100
0201
R22
100
0201
R63
R65 86.6 1%
IN1IN1+
IN2+
IN2IN3IN3+
IN4+
IN4IN5IN5+
IN6+
IN6IN7IN7+
IN8+
IN8-
1
2
23
36
37
R44
86.6
1%
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
R36
86.6
1%
4
5
6
7
8
9
10
11
14
15
16
17
18
19
20
21
D
EDGE-CON-100
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
12
25
26
47
48
5
AIN1
T2
MABAES0060
5
3
R30
100
0201
P1
EN12
EN34
EN56
EN78
EN
VC1
VC2
VC3
VC4
VC5
56uH
OUT-ENABLE1
R16
100
AIN1-
VDO
SENSE
VREF
SDO
OF2_1+
OF2_1D1_14_15+
D1_14_15D1_12_13+
D1_12_13D1_10_11+
D1_10_11D1_8_9+
D1_8_9D1_6_7+
D1_6_7-
L1
R58
3
22
27
46
13
VE1
VE2
VE3
VE4
VE5
T1
MABA-007159-000000
C6
SD0
R9
R45 86.6 1%
R19
100
0201
VC1
VC2
VC3
VC4
VC5
U3
FIN1108
SHT 2
SD0
VE1
VE2
VE3
VE4
VE5
2.2uF
TP4
J2
APPROVED
01/31/11
+3.3V
C17
SHT 2
DATE
PRODUCTION
R18
100
0201
EXT REF
J1
DESCRIPTION
4
R14
1K
TP1
D
REV
4
3
2
CONTRACT NO.
APPROVALS
TECHNOLOGY
PCB DES. MI
ENG. CLARENCE M.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
2-CHANNEL, HIGH SPEED LOW POWER
ADC FAMILY, LVDS
SIZE
B
DATE:
IC NO.
LTC21XXCUP FAMILY
DEMO CIRCUIT 1620A
Tuesday, March 15, 2011
SHEET
1
REV
4
1 OF 2
A
5
4
VDD
VDD
VDD
3
VDD
2
VDD
+3.3V
*
+3.3V
JP3
1
PAR
2
SER
PAR/SER
3
EN
DIS
JP4
1
2
EN
CS
3
SDI
3
EN
2
LVDS
3
DIS
SHDN
1
SD0
2
1
SCK
3
CMOS
NAP
SCL
SDA
2
4
3
8
6
7
9
LVDS/CMOS
INT
SCL
SDA
NC
NC
A0
A1
A2
P0
P1
P2
P3
P4
P5
P6
P7
NC
NC
RN2
1
2
3
4
10
11
12
14
16
17
19
20
18
13
33
8
7
6
5
SCK
SDI
SD0
CS
C74
C68
C69
22pF
22pF
22pF
VIN
VDD
OVDD
VDD
U4
TP2
C
7
8
TP3
GND
U2
SAMPLE RATE
No. of BITS
FREQUENCY R
-A
LTC2185CUP
125Msps
16
5MHz < AIN < 140MHz
-B
LTC2184CUP
105Msps
16
5MHz < AIN < 140MHz
-C
LTC2183CUP
80Msps
16
5MHz < AIN < 140MHz
-D
LTC2182CUP
65Msps
16
5MHz < AIN < 140MHz
-E
LTC2181CUP
40Msps
16
5MHz < AIN < 140MHz
-F
LTC2180CUP
25Msps
16
5MHz < AIN < 140MHz
-G
LTC2145-14CUP
125Msps
14
5MHz < AIN < 140MHz
-H
LTC2144-14CUP
105Msps
14
5MHz < AIN < 140MHz
-I
LTC2143-14CUP
80Msps
14
5MHz < AIN < 140MHz
-J
LTC2142-14CUP
65Msps
14
5MHz < AIN < 140MHz
-K
LTC2141-14CUP
40Msps
14
5MHz < AIN < 140MHz
-L
LTC2140-14CUP
25Msps
14
5MHz < AIN < 140MHz
-M
LTC2145-12CUP
125Msps
12
5MHz < AIN < 140MHz
-N
LTC2144-12CUP
105Msps
12
5MHz < AIN < 140MHz
-O
LTC2143-12CUP
80Msps
12
5MHz < AIN < 140MHz
-P
LTC2142-12CUP
65Msps
12
5MHz < AIN < 140MHz
-Q
LTC2141-12CUP
40Msps
12
5MHz < AIN < 140MHz
-R
LTC2140-12CUP
25Msps
12
5MHz < AIN < 140MHz
D
L2
V+
4.5V - 6V
ASSY
15
PAR/SER
CS
SDI
SD0
SCK
SCL
SDA
SHT 2
R6
10k
U5
PCF8574TS/3
JP6
1
2
DIS
R81
1K
JP5
1
DUTY CYCLE STAB.
PAR/SER
R80
1K
5
JP2
D
R35
1K
VDD
R34
1K
GND
R33
1K
1
C24
C14
4.7uF
0603
1uF
0603
6
VIN
VIN
VOUT
VOUT
VOUT
VOUT
1
2
3
9
C54
10uF
0805
NC
C72
1uF
0603
BEAD
L4
R11
3k
1%
BEAD
5
TP5
VCTRL
SET
4
C26
0.1uF
0603
C18
C19
C33
C70
C71
0.1uF
0603
0.1uF
0603
OPT
0603
OPT
0603
OPT
0603
C37
R7
0.1uF
180k 1%
GND
LT3080EDD
+3.3V
U6
+3.3V
L3
7
8
C22
1uF
0603
6
5
VIN
VIN
VOUT
VOUT
VOUT
VOUT
1
2
3
9
C55
10uF
0805
NC
VCTRL
SET
4
C
C73
1uF
0603
BEAD
R12
3k
1%
C28
C29
C30
C31
C32
C34
C35
C36
C75
C76
0.1uF
0603
0.1uF
0603
0.1uF
0603
0.1uF
0603
0.1uF
0603
0.1uF
0603
0.1uF
0603
0.1uF
0603
0.1uF
0603
0.1uF
0603
R8
330k
1%
LT3080EDD
B
B
A
USED TO MANUFACTURE PCB
MH1
MH2
MH3
MH4
1
1
1
1
REPRESENTS STAND OFFS
5
4
3
CUSTOMER NOTICE
CONTRACT NO.
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
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
APPROVALS
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
2
TECHNOLOGY
PCB DES. MI
ENG. CLARENCE M.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
2-CHANNEL, HIGH SPEED LOW POWER
ADC FAMILY, LVDS
SIZE
N/A
DATE:
IC NO.
LTC21XXCUP FAMILY
DEMO CIRCUIT 1620A
Wednesday, May 11, 2011
SHEET
1
REV
2
4
OF
2
A
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