Texas Instruments LMH1208, User Manual

Page: 21 / 30

GND
i
50 ohm single ended trace
i
50 ohm single ended trace
i
50 ohm single ended trace
i
50 ohm single ended trace
SS_N_ADDR0
VDD_CDR
VIN
MODE_SEL
GND
GND
1.00k R5
1.00k R6 20.0k R44
VIN
OUT0_SEL
GND
GND
1.00k R11
1.00k R12 20.0k R47
VIN
OUT_CTRL
GND
GND
1.00k R7
1.00k R8 20.0k R45
VIN
HOST_EQ0
GND
GND
VIN
EQ_CD_SEL
GND
GND
GND
VDD_CDR
GND
VIN
220
R21
VIN
LOCK_N
Green
1
2
D1
1.00k R3
1.00k R4 20.0k R43
1.00k R9
1.00k R10 20.0k R46
SCK
GND
MOSI MISO
3P3V
SSN
MOSI_SDA
SS_N_ADDR0
SCK_SCL
2.00k R2
2.00k R1
3P3V
3.16k R22
9.76k
R25
3.16k R23
3.16k R24
9.76k
R26
9.76k
R27
GND
SCK_SCL
MOSI_SDA
Shunt Jumper Settings:
For SMBUS MODE:
J9 - Install pin 7-8 and 9-10 for 2kohm pull to 3.3V
PIN 1-6 LEAVE OPEN
For SPI MODE:
J9 - Install pin 1-2 and 3-4 and 5-6 for SPI 3.3V to 2.5V level shift
J6 - Intall pin 1-2
PIN 7-10 LEAVE OPEN
VDD_LDO
MODE_SEL
1
2
J2
1212-ST
1
2
J1
1212-ST
1
2
J3
1212-ST 1µF
C3
VIN
GND
EQ_CD_SEL
OUT0_SEL
OUT_CTRL
LOCK_N
MISO_ADDR1
SCK_SCL
MOSI_SDA
4.7µF
C16
4.7µF
C17
4.7µF C10
4.7µF C11
4.7µF C14
4.7µF C15
GND
1µF
C2
10µF
C1
3P3V
3P3V
GND
GND
MISO
MISO
MOSI
MOSI
SSN
SSN
SCK
SCK
MOSI_SDA
MOSI_SDA
SCK_SCL
SCK_SCL
MISO_ADDR1
MISO
0.1µF
C4
0.1µF
C5
0.1µF
C7
1µF
C6
1 2
3 4
5 6
7 8
9 10
J8
5103308-1
1 2
3 4
5 6
7 8
9 10
J9
PEC05DAAN
1 2
3 4
5 6
J10
1 2
3 4
5 6
J11
1 2
3 4
5 6
J12
1 2
3 4
5 6
J13
1 2
3 4
5 6
J14
1
2
J7
5-146278-2
1
2 3 4 5
J24
142-0771-821
1
2 3 4 5
J25
142-0771-821
1
2 3 4 5
J22
142-0771-821
1
2 3 4 5
J23
142-0771-821
1
2
J6
5-146278-2
GND
1
2
J4
5-146278-2
1
2 3 4 5
J20
BNC7T-J-P-GN-ST-EM1D
75.0
R28
i
75 ohm single ended trace
i
75 ohm single ended trace
HOST_EQ0
ENABLE
SDI_VOD
GND
4.7µF C12
4.7µF C13
1
2 3 4 5
J21
BNC7T-J-P-GN-ST-EM1D
1.00k R19
1.00k R20 20.0k R51
VIN
SDI_OUT_SEL
GND
GND
1.00k R13
1.00k R14 20.0k R48
VIN
SDI_VOD
GND
GND
1 2
3 4
5 6
J18
1 2
3 4
5 6
J15
ENABLE
GND
1
2
3
J5
5-146278-3
VIN
1.00k R15
1.00k R16 20.0k R49
VIN
SS_N_ADDR0
GND
GND
1.00k R17
1.00k R18 20.0k R50
VIN
MISO_ADDR1
GND
GND
1 2
3 4
5 6
J16
1 2
3 4
5 6
J17
SDI_OUT_SEL
1.00k R41
1.00k R42 20.0k R52
VIN
RSV1
GND
GND 1 2
3 4
5 6
J19
75.0
R29
i
75 ohm single ended trace
i
75 ohm single ended trace
RSV1
ENABLE
32
EP
33
HOST_EQ0
9
IN0+
19
IN0-
18
1
SDI_IO-
2
EQ/CD_SEL
5
OUT0_SEL
4
MISO_ADDR1
28
MODE_SEL
12
MOSI_SDA
13
OUT0+
23
OUT0-
22
OUT_CTRL
17
SDI_OUT-
7
8
RSV1
10
SDI_OUT_SEL
14
RSV2
15
RSV3
16
RSV4
25
RSV5
26
SCK_SCL
29
SDI_VOD
24
SS_ADDR0
11
VDD_CDR
21
VDD_LDO
31
VIN
30
VSS
6
VSS
3
VSS
20
LOCK
27
U1
LMH1297RTV
Copyright © 2016, Texas Instruments Incorporated
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Schematics
21 SNAU205A – March 2017 – Revised August 2019
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LMH1297EVM Evaluation Board
8 Schematics
Figure 23. LMH1297 Schematic Page