C Bus For Onboard Eeprom - Texas Instruments ADS7042EVM-PDK User Manual

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JP5
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TSW-105-07-G-D
AGND
Figure 2-7. Digital Communication and PHI Connector on the ADS704X-5XEVM
2
2.4 I

C Bus for Onboard EEPROM

The circuit shown in Figure 2-8
EVM and enable the correct GUI settings. The user does not need to modify or interact with this circuit during
EVM operation. As a result, switch S1 is set by default to enable the EEPROM write protect and must not be
altered unless the ADC is modified as per
replaced using the ADS704X-5XEVM GUI, as per
SBAU382 – NOVEMBER 2021
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2 CS_A
CS_B
4
SCLK_AB
6
8
10
SDO_A
SDO_B
R13
EVM_DVDD EVM_CAP
0
EVM_ID_SDA
EVM_ID_SCL
AGND
is used with the PHI board to identify the specific ADCs populated on the
Section 2.1.1
Section
EVM_ID_PWR
R26
10.0k
U4
1 8
A0 VCC
2 7 WP
A1 WP
3 6 EVM_ID_SCL
A2 SCL
EVM_ID_SDA
4 5
VSS SDA
BR24G32FVT-3AGE2
AGND
Figure 2-8. EEPROM Circuit on the ADS704X-5XEVM
Copyright © 2021 Texas Instruments Incorporated
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EVM_ID_WP
58 57
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60 59
MP1 MP3
GND GND
MP2 MP4
GND GND
QTH-030-01-L-D-A
or Section 2.1.2. Update the EEPROM when the ADC is
4.6.
EVM_ID_PWR
C22
R28
S1
100nF 10.0k
1
AGND
2
3
CAS-120TA
AGND
R10 0 EVM_ID_WP
DNP
ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK
Introduction to the ADS704X-5XEVM
EVM_REG_5V5
AGND
EVM_ID_PWR
AGND
Evaluation Module
9