17
SBAU290 – September 2017
Copyright © 2017, Texas Instruments Incorporated
Appendix A
SBAU290 – September 2017
A.1
Jumper, Header, and Button Descriptions
lists the EVM jumpers and buttons, as well as the default settings for the jumpers. If there are
issues, use
to reset the EVM in the default configuration.
Table 8. Jumper and Button Descriptions and Default Settings
Jumper
Description
Default Setting
JP7
Rx Global Power-Down
Short 2 – 3
Short 1 – 2: Force as logic HIGH (power down)
Short 2 – 3: Force as logic LOW (normal operation)
NOTE:
Open is not a valid state for this jumper.
JP3
SPI Select, CPLD
Short 2 – 3
Short 1 – 2: Reserved. Do not use this state.
Short 2 – 3: Default state
NOTE:
Open is not a valid state for this jumper.
JP2
VCXO Power
Short
Short: Supplies 3.3 V to Y1 VCXO
Open: Disconnects power from Y1 VCXO
TRIGAB
External trigger for Burst Mode, channels A and B
Open
Pin 1: Trigger signal, 1.8-V logic
Pin 2: Ground
Open: Trigger function not used
TRIGCD
External trigger input for Burst Mode, channels C and D
Open
Pin 1: Trigger signal, 1.8-V logic
Pin 2: Ground
Open: Trigger function not used
TRDYAB
Trigger Ready output for Burst Mode, channel A and B
Open
Pin 1: Trigger ready signal, 1.8-V logic
Pin 2: Ground
TRDYCD
Trigger Ready output for Burst Mode, channel C and D
Open
Pin 1: Trigger ready signal, 1.8-V logic
Pin 2: Ground
SW1
ADC Reset
N/A
Press to reset ADC and its registers.
J15
ADS54J64 SPI Monitoring Header, ADC SPI
OPEN
Pin1: SCK
Pin2: SEN
Pin3: SDIO
Pin4: SDO