Schematics; Figure 6-1. Ads9817 Device Connections - Texas Instruments ADS9817EVM-PDK User Manual

Bill of Materials, Schematics, and Layout

6.2 Schematics

Figure 6-1 through Figure 6-4
to J27, and the analog signals connect to SMA connectors and input filtering.
decoupling for the device.
VBIAS
AIN1P
AIN1M
AIN2P
AIN2M
AIN3P
AIN3M
AIN4P
AIN4M
AIN5P
AIN5M
AIN6P
AIN6M
AIN7P
AIN7M
AIN8P
AIN8M
18 ADS9817EVM-PDK Evaluation Module
show the various connections to the ADS9817 device. The digital signals connect
TP1
U1A
20
VBIAS RESET
SMPL_CLK
54
AIN1P
55
AIN1M SMPL_SYNC
1
AIN2P DCLKIN
2
AIN2M
DCLKOUT
3
AIN3P
4
AIN3M FCLKOUT
5
AIN4P D0
6
AIN4M D1
D2
9
AIN5P D3
10
AIN5M
11
AIN6P
12
AIN6M
SPI_EN
13
AIN7P
14
AIN7M CS
16
AIN8P SCLK
17
AIN8M SDI
SDO
38
NC
39
NC PWDN
50
NC
51
NC
ADS9817IRSHT
1V8_VDD
C15 C16
10V 10V
1µF 0.1µF
GND GND
5V
21
49
C19 C20 C21
15
10V 10V 10V
56
1µF 0.1µF 0.1µF
22
GND GND GND
47
48
1V8_VDD
30
41
C23
10V
0.1µF
GND
1V8_IOVDD
C24 C25
10V 10V
0.1µF 0.1µF
GND GND

Figure 6-1. ADS9817 Device Connections

Copyright © 2022 Texas Instruments Incorporated
Figure 6-1
RESETz
31
SMPL_CLK
44
SMPL_SYNC
45
43
R10
DCLKOUT
33
33
R11
FCLKOUT
40
33
R12
D0
34
R13
D1
35
33
R14
D2
36
33
R15
D3
37
33
33
SPI_EN
24
CSz
25
SCLK
26
SDI
27
R22
SDO
28
33
PWDNz
32
U1B
19
AVDD_1V8 REFOUT_2V5
AVDD_1V8
52
REFIO
AVDD_5V
AVDD_5V
8
REFM
18
DVDD_1V8 REFM
53
DVDD_1V8 REFM
DVDD_1V8
7
AGND
IOVDD
23
IOVDD DGND
46
DGND
29
IOGND
42
IOGND
57
Thermal_Pad
ADS9817IRSHT
also shows the
RESETz
SMPL_CLK
SMPL_SYNC
DCLKOUT
FCLKOUT
DATA_D0
DATA_D1
DATA_D2
DATA_D3
SPI_EN
CSz
SCLK
SDI
SDO
PWDNz
TP2
REFOUT_2V5
REFIO
C22
10V
1µF
GND
NT1
Net-Tie
GND GND
SBAU416 – NOVEMBER 2022
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