Texas Instruments DAC8580, User Manual

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EVM Operation
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Table 5. Jumper Setting Function (continued)
Reference Jumper Setting Function
W7 Disconnect the OSR1 input pin of the DAC from ground and ensure a high state configuration
for the OSR1 pin. This is hardwired to ground for the DAC8581EVM.
Connect the OSR1 input pin of the DAC to ground. This is hardwired to ground for the
DAC8581EVM.
W8 Disconnect the OSR2 input pin of the DAC8580 from ground and ensure a high-state
configuration for the OSR2 pin. This is hardwired to ground for the DAC8581EVM.
Connect the OSR2 input pin of the DAC to ground. This is hardwired to ground for the
DAC8581EVM.
W9 Disconnect the RSTB input pin of the DAC8580 from ground and ensure a high-state
configuration for the RSTB pin. This is hardwired to ground for the DAC8581EVM.
Connect the RSTB input pin of the DAC to ground. This is hardwired to ground for the
DAC8581EVM.
W10 Disconnect the BPB input pin of the DAC8580 from ground and ensure a high-state
configuration for the BPB pin. This is hardwired to ground for the DAC8581EVM.
Connect the BPB input pin of the DAC to ground. This is hardwired to ground for the
DAC8581EVM.
W14 The FSYNC pin of the DAC is driven by CS pin from J2-1 terminal.
The FSYNC pin of the DAC is driven by FSX pin from J2-7 terminal.
W15 Disconnect the inverting input pin of operational amplifier, U2, from the gain resistor, R12.
Connect the inverting input pin of operational amplifier, U2, to the gain resistor, R12 for 2x
output gain.
W16 Disconnect the MUTEB/CLR pin of the DAC8580/DAC8581 from AGND and configure it for
normal operation.
Connect the MUTEB/CLR pin of the DAC8580/DAC8581 to AGND and set the DAC output to
midscale (~0V).
W17 Should not be installed for proper operation of the DAC8581EVM.
Should be installed for proper operation of the DAC8580EVM.
J3 The noninverting input of U2 is tied to AGND.
DAC V
OUT
is routed to the noninverting input of U2.
DAC V
OUT
is routed to the inverting input of U2.
DAC V
OUT
is routed to the inverting input of U2 and the noninverting input of U2 is tied to
AGND.
Legend: Indicates the corresponding pins that are shorted or closed.
12 DAC8580/81 Evaluation Module SLAU173A – December 2005 – Revised November 2009
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