Texas Instruments ADS5103 EVM manual ADS5102/3 EVM Operational Procedure, Two Pin Jumper List

ADS5102/3 EVM Operational Procedure

1.4 ADS5102/3 EVM Operational Procedure

The ADS5102/3 EVM provides a flexible means of evaluating the ADS5102/3 in a number of modes of operation. A basic setup procedure that can be used as a board confidence check is as follows:

1)Verify all jumper settings against the schematic jumper list in Table 1–1 and Table 1–2:

Table 1–1. Two Pin Jumper List

Jumper	Function	Installed	Removed	Default
W10	External REFT feed	External	Internal	Removed
W11	External REFB feed	External	Internal	Removed
R39	Positive analog input	Transformer coupled	No connection	Installed
R37	Negative analog input	Transformer coupled	No connection	Installed
R38	Positive analog input	Differential amplifier	No connection	Removed
R36	Negative analog input	Differential amplifier	No connection	Removed
R43, R44	Output clock option	ADC clock at output connector	Buff clock at output	Removed
			connector
R42	Optional output clock	Provides pullup termination	No pullup termination	Removed
	parallel termination
R14	Optional ADC clock	Provides pullup termination	No pullup termination	Removed
	parallel termination

Table 1–2. Three Pin Jumper List

Jumper	Function	Location: Pins 1–2	Location: Pins 2–3	Default
W1	Band gap input voltage	REFT voltage to bandgap pin	1.25 V to bandgap pin	Removed
	(power down reference
	mode)
W3	Transformer and diff amp	ADC output common mode	External common	1–2
	common mode select	voltage	mode voltage
W4	Power down select	Operate mode	Power down mode	1–2
W5	Output enable select	Data bus tristate	Data bus enable	2–3
W6	Reference select	External reference	Internal reference	2–3

2)Connect supplies to the EVM as follows:

J 1.8-V analog supply to J6 and return to J5 J 1.8-V digital supply to J9 and return to J10 J 3.3-V driver supply to J13 and return to J14 J 5-V analog supply to J7 and return to J8 J –5-V analog supply to J11 and return to J8

Overview1-3