National Semiconductor DAC081C081 User Manual - Appendix
12
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APPENDIX
A1.0 Summary Tables of Test Points, Jumpers, and Connectors
Test Points on the DAC121C08XEB Evaluation Board
TP1: AGND
Ground. Located at the top center of the board.
TP2: AGND
Ground. Located at the top center of the board.
TP3: AGND
Ground. Located at the bottom right of the board.
TP4: VA
V
A
Test Point. Located at the bottom right of the board.
TP5: AGND
Ground. Located at the top left of the board.
TP6: 3P3V
3.3V test point. Located at the top left of the board.
TP7: AGND
Ground. Located at the bottom left of the board.
Connectors on the DAC121C08XEB Evaluation Board
J1: WV4S Header
Wave Vision 4 Serial connector. Stuffed on the bottom side of the board intentionally.
J2: Terminal Block
VREF, AGND, VA_REMOTE. External power supply connector.
J3: Serial Interface
Header
Serial Interface header. Logic Input. (Refer to Figure 2 for a pin-out diagram.)
J4: SMA Connector
VOUT_AC. AC Coupled Analog Output.
J5: 2-pin Header
VOUT. DC Coupled Analog Output.
Selection Jumpers on the DAC121C08XEB Evaluation Board (Refer to Table 1 in Section 4.0 for configuration details)
JP4: V
OUT
Load Select
Configures the load on V
OUT
. Refer to Table 1.
JP5: I
2
C Address
Select
Configures the DAC’s I
2
C address. Refer to Table 1. Note: Changes to the pin-configured I
2
C slave
address do not take effect until the DAC is power-cycled.
JP6: I_VREF
Enables V
REF
supply to the DAC. Also used to measure isolated V
REF
current.
JP7: V
REF
Select
Selects the V
REF
source. V
REF
is either supplied externally or connected to V
A
by this jumper.
JP8: I_VA
Enables V
A
supply to the DAC. Also used to measure isolated V
A
current.
JP9: V
A
Select
Selects the V
REF
source. V
REF
is either supplied externally or connected to V
A
by this jumper.
JP10: 3P3V Select
Selects the 3.3V source for powering the WaveVision EEPROM (U3). Always set to pins 1 and 2 for
WaveVision operation.