National Semiconductor LMH1983, Руководство пользователя

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1 1 Output
11/3/2009
Output.SchDoc
Sheet Title:
Size:
Schematic:
Mod. Date:
File:
Rev:
Sheet: of
B
National Semiconductor and/or its licensors do not warrant the accuracy or completeness of
this specification or any information contained therein. National and/or its licensors do not
warrant that this design will meet the specifications, will be suitable for your application or fit
for any particular purpose, or will operate in an implementation. National and/or its licensors
do not warrant that the design is production worthy. You should completely validate and test
your design implementation to confirm the system functionality for your application.
© Copyright, National Semiconductor, 2009
http://www.national.com
Contact: TechSupport
PRJ_Title Project:
Designed for: PRJ_Customer
870 PRJ_BasePN
PADC: PRJ_PADC
SCH_Rev
Assembly Variant: variantName: No Variant Selected
100 OHM DIFF. IMPEDANCE
C64
0 ohm (10nF)
C65
0 ohm (10nF)
CLKout4_P
CLKout4_N
100 OHM DIFF. IMPEDANCE
C60
0 ohm (10nF)
C61
0 ohm (10nF)
CLKout3_P
CLKout3_N
100 OHM DIFF. IMPEDANCE
100 OHM DIFF. IMPEDANCE
C49
0 ohm (10nF)
C50
0 ohm (10nF)
C54
0 ohm (10nF)
C56
0 ohm (10nF)
CLKout1_P
CLKout1_N
CLKout2_P
CLKout2_N
LED Indicators for LMH1983 Status Flags
3V3
0.1uF
C51
NOALIGN
Layout Note: Place LEDs nearby
status flag pins.
LED Legend 'ALIGN'
CLKout4_P
CLKout4_N
CLKout3_N
CLKout3_P
CLKout1_P
CLKout1_N
CLKout2_N
CLKout2_P
1
2 3 4 5
J4
CLKout1
D1 LG M670-J2M1-1-0-10-R18-Z
150
R62
3V3
0.1uF
C55
NOREF
Layout Note: Place LEDs nearby
status flag pins.
LED Legend 'REF'
D2 LG M670-J2M1-1-0-10-R18-Z
150
R68
3V3
0.1uF
C59
NOLOCK
Layout Note: Place LEDs nearby
status flag pins.
LED Legend 'LOCK'
D3 LG M670-J2M1-1-0-10-R18-Z
150
R69
ENABLE
6
SDI
2
SD/HD
10
SDI
1
SDO
11
SDO
12
RREF
4
NC
5
NC
7
NC
8
NC
13
NC
14
NC
15
NC
16
VCC
9
VEE
3
DAP
17
U5
LMH0302SQ
1
2
JP13
100
R60
Layout note: Place termination resistor, two pin header and
LMH0302 inputs as close together as possible. Place LMH0302
close to the board edge and the SMA connector connected to it's
output. Label SMAs on Silkscreen with CLKout1, CLKout 2 etc..
49.9
R59
49.9
R58
49.9
R57
VDD
0.1uF
C53
1uF
C52
VDD
750
R61
1
2 3 4 5
J5
CLKout2 ENABLE
6
SDI
2
SD/HD
10
SDI
1
SDO
11
SDO
12
RREF
4
NC
5
NC
7
NC
8
NC
13
NC
14
NC
15
NC
16
VCC
9
VEE
3
DAP
17
U6
LMH0302SQ
1
2
JP14
100
R66
49.9
R65
49.9
R64
49.9
R63
VDD
0.1uF
C58
1uF
C57
VDD
750
R67
1
2 3 4 5
J6
CLKout3 ENABLE
6
SDI
2
SD/HD
10
SDI
1
SDO
11
SDO
12
RREF
4
NC
5
NC
7
NC
8
NC
13
NC
14
NC
15
NC
16
VCC
9
VEE
3
DAP
17
U7
LMH0302SQ
1
2
JP15
100
R73
49.9
R72
49.9
R71
49.9
R70
VDD
0.1uF
C63
1uF
C62
VDD
750
R74
1
2 3 4 5
J7
CLKout4 ENABLE
6
SDI
2
SD/HD
10
SDI
1
SDO
11
SDO
12
RREF
4
NC
5
NC
7
NC
8
NC
13
NC
14
NC
15
NC
16
VCC
9
VEE
3
DAP
17
U8
LMH0302SQ
1
2
JP16
100
R78
49.9
R77
49.9
R76
49.9
R75
VDD
0.1uF
C67
1uF
C66
VDD
750
R79
0.1uF
C118
0.1uF
C119
0.1uF
C116
0.1uF
C117