DC1600A - Schematic

5
4
3
2
1
REVISION HISTORY
SHDN EN
VCC
TP6
ECO
TP7
REV
DESCRIPTION
DATE
2
PRODUCTION
03/02/10
APPROVED
VCC
R61
1K
WALTER S.
R62
[1]
D
D
R63
[1]
R64
1K
NOTES: UNLESS OTHERWISE SPECIFIED,
[1] DO NOT STUFF.
VCC
R65
1K
C73 0.1uF
[1]
10nF
6
VCC
C82
C81
0.1uF
1000pF
VCC
19
20
VCC
GND
21
SHDN
EN
23
22
VCM
GND
VCM
DECL2
VCC
VCC
17
AIN+ SHT 2
16
C
AIN- SHT 2
15
14
13
C80
VCC
C83
1000pF
0.1uF
25
C79
0.1uF
18
GND
5
C86
-OUT
12
4
10nF
R69
0
-IN
-VG
0dB
-IN
+OUT
VREF
1:1
+IN
11
3
+VG
C78
GND
10
3
GND
2
4
GND
9
10nF
8
1
2
GND
24
1
7
T1
VCC
U9
LTC6412CUF
C75
5
J3
C74
C72 1000pF
J1
+IN
C
VCC
C71 1000pF
DECL1
R67
[1]
R66
1K
CA1
1uF
R70 [1]
C84
B
B
0.1uF
TP10
R71 0
GND
C77
0.1uF
TP8
R72 100
C87 [1]
C88 1uF
R75 100
TP9
+VG
-VG
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
TECHNOLOGY
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
MI
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG. WALTER S. TITLE: SCHEMATIC
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
A
DIRECT-TO-DIGITAL IF RECEIVER
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
N/A
SCALE = NONE
IC NO.
LTC6412CUF / LTC2261CUJ
DEMO CIRCUIT 1600A
DATE: Tuesday, March 02, 2010
2
SHEET 1
1
REV.
2
OF 2
5
4
3
2
1
VDD
R14
1K
TP1
EXT REF
C17
VCC
C89
[1]
VCC
R45
D
C7
4.7pF
100
U3
FIN1108
3
22
27
46
13
C13
L1
[1]
C51
1uF
C62
68pF
ENABLE
R40
49.9
1%
1000pF
C63
VCC 22pF
R44
0
R16
100
C23
R10
0
C21
1uF
7
C29
C30
C31
C32
C34
C35
C36
8
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
9
PAR/SER
VDD
R47 0
R48 0
GND
R56
OPT
31
33
D10_11-
D10_11+
32
D12_13-
34
OF-
D12_13+
35
36
OF+
VREF
VCM
38
39
D6_7-
VDD
D4_5+
VDD
D4_5-
28
24
26
25
24
23
22
21
U2
LTC2261CUJ
R22
100
OPT
1
VOUT
0.01uF
R52
U5
PCF8574TS/3
0 W
1
OPT
R4 OPT
R55 OPT
VDD
VDD
VDD
SCL
SDA
1
2
ENCC60
R53 OPT
R57
0
R54 0
R33
1K
0.01uF
JP2
PAR
U4 LT1763CDE-1.8
TP3
2
PAR/SER
EN
R35
1K
6
7
9
JP4
1
2
1
CS
EN
2
SDI
L2
10
11
V+
C24
4.7uF
C14
12
1
4
9
1uF
GND
IN
IN
NC
NC
NC
NC
OUT
OUT
SENSE
GND
SHDN
GND
3
SER
C54
5
C38
3
DIS
PAR/SER
BEAD
6
C22
12
1
4
9
1uF
NC
NC
NC
NC
OUT
OUT
SENSE
SHDN
GND
A0
A1
A2
3
10
11
12
14
16
17
19
20
18
13
8
7
6
5
SCK
SDI
SD0
CS
SCK/SCL
MOSI/SDA
MISO
VOUT
R6
EEVCC
EESDA
EESCL
EEGND
10K
CS
OX40
NC
DUTY CYCLE STAB.
SDA
VCC_IN
R29 4.99K 1%
VOUT
6
4
7
5
B
RN1
1
2
3
4
33
8
7
6
5
10
9
11
12
CS
SCK
SDI
SD0
C52
C53
100pF
100pF
FAST DAACS BOARD ID CIRCUITRY
VSS
C27 0.1uF
VCC_IN
1%
1
2
3
4
14
VCC_IN
SDA
SCL
VSS
U1 24LC025-I/ST
8
A0 VCC 7
A1
WP 6
A2 SCL 5
A3 SDA
R25 4.99K
SCL
SCL
SDA
R26 4.99K 1%
SDA
SHDN
BEAD
VCC
L9
R8 6.81K 1%
VIN
U8 LT1763CDE
2
3
10
11
5
C68
6
0.01uF
C55
CUSTOMER NOTICE
BEAD
1uF
22uF
12
1
4
9
IN
IN
NC
NC
NC
NC
OUT
OUT
SENSE
BYP
7
8
SHDN
GND
2
3
R58 10K 1%
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.
R59 5.49k 1%
5
6
C69
C70
0.01uF
22uF
4
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
MI
DIRECT-TO-DIGITAL IF RECEIVER
SIZE
3
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
WALTER S. TITLE: SCHEMATIC
7
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
VSS
SCL
VOUT
C39
BYP
8
C
7
R7 10K 1%
IN
IN
OXA2
C37
0.1uF
U6 LT1763CDE
10
11
SCL
SDA
NC
NC
P0
P1
P2
P3
P4
P5
P6
P7
NC
NC
33
OXA0
22uF
L3
A
DIS
INT
RN2
1
2
3
4
BEAD
L4
0.01uF
BYP
8
TP5
2
3
VCC_IN
VSS
SCL
SDA
1
2
3
8
13
TP2
JP3
1
VDD OVDD
VIN
4V - 6V
R34
1K
2
4
3
8
VUNREG
5V
15
J9
U7 24LC32A-I/ST
8
A0 VCC 7
A1
WP 6
A2 SCL 5
A3 SDA
J8
2
0.01uF
5
C59
C58
C3
1
2
3
4
R24
100K
VDD
1
R1
301
1%
0 W
C56 0.1uF
ENABLE
GND
2
D1
HSMS-2822
OPT
2
3
1
C1
B
1
R51
OPT
2
2
OPT
R23
100
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
SD0
ENC+
2
SDI
C2 0.01uF
1
R2
301
1%
SCK
T3
WBC4-1WL
CS
R50 36nH
OUT1OUT1+
OUT2+
OUT2OUT3OUT3+
OUR4+
OUT4OUT5OUT5+
OUT6+
OUT6OUT7OUT7+
OUT8+
OUT8-
R49
R5 OPT
1
L6
VBB
OVDD
C57
J7
IN1IN1+
IN2+
IN2IN3IN3+
IN4+
IN4IN5IN5+
IN6+
IN6IN7IN7+
IN8+
IN8-
+D12/D13
-D12/D13
+D10/D11
-D10/D11
+D8/D9
-D8/D9
+CLK
-CLK
+D6/D7
-D6/D7
+D4/D5
-D4/D5
+D2/D3
-D2/D3
+D0/D1
-D0/D0
27
1
TP4
C61
0.01uF
PAR/SER
41
BEAD
D6_7+
GND
R46 OPT
2
L5
10
VDD
OGND
REFL
R30
100
EN12
EN34
EN56
EN78
EN
45
44
43
42
41
40
39
38
35
34
33
32
31
30
29
28
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
GND
GND
GND
C28
REFL
R21
100
29
P1
1
2
23
36
37
6
OVDD
D2_3+
C20
CLKOUT-
REFH
D2_3-
VOUT
REFH
R20
100
30
20
5
0.1uF
CLKOUT+
D0_1+
C
GND
19
4
18
C15
D0_1-
3
0.1uF
D8_9-
17
1000pF
D8_9+
AIN-
SDO
0.1uF
2
C67
SDI
1000pF
C66
16
0.1uF
C65
SCK
0.1uF
C64
15
0.1uF
C33
14
0.1uF
C19
ENC+
C18
AIN+
12
1
VDD
VCC
11
VDD
37
VDD
40
C90
[1]
4
5
6
7
8
9
10
11
14
15
16
17
18
19
20
21
R19
100
1uF
SENSE
VCC
C12
4.7pF
CS
L8
47nH
ENC-
AIN-
C26
R18
100
13
SHT 1
12
25
26
47
48
R39
49.9
1%
C6 0.1uF
1
2
VC1
VC2
VC3
VC4
VC5
C9
68pF
AIN+
VOUT
R17
VE1
VE2
VE3
VE4
VE5
SHT 1
C10
22pF
2
L7
47nH
R9 0
1
D
1uF
0
N/A
SCALE = NONE
IC NO.
LTC6412CUF / LTC2261CUJ
DEMO CIRCUIT 1600A
DATE: Tuesday, March 02, 2010
SHEET 2
1
REV.
2
OF 2
A
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