Analog Devices EVAL-AD5760 User Manual page 4

UG-436
Table 5. Link Options
Link No. Description
LK1 This link selects the source of the digital power supply.
Position A selects the source from the SDP board.
Position B selects the source from Connector J1.
LK2 This link selects the positive reference voltage source.
Position A selects an on-board generated +5 V.
Position B selects an on-board generated +10 V.
Position C selects an external voltage applied at Connector VREFP.
LK3 This link is used in conjunction with LK4 to configure the mode of operation of the output amplifier.
Position A configures the amplifier in unity gain. LK4 should be removed.
Position B configures the amplifier for a gain of 2. LK4 should be inserted.
LK4 This link is used in conjunction with LK3 to configure the mode of operation of the output amplifier.
When this link is inserted, LK3 should be in Position B to configure the amplifier for a gain of 2.
When this link is removed, LK3 should be in Position A to configure the amplifier for unity gain.
LK5
This link selects the state of the RESET pin.
When this link is inserted, RESET is at logic low.
When this link is removed, RESET is at logic high.
LK6 This link selects the state of the CLR pin.
When this link is inserted, CLR is at logic low.
When this link is removed, CLR is at logic high.
LK7
This link selects the state of the LDAC pin.
When this link is inserted, LDAC is at logic low.
When this link is removed, LDAC is at logic high.
LK8 This link selects the negative reference voltage source.
Position A selects an on-board generated −5 V.
Position B selects AGND.
Position C selects an on-board generated −10 V.
Position D selects an external voltage applied at Connector VREFN.
LK9 This link connects the output of Voltage Reference U5 to the reference scaling circuitry.
LK11 This link connects the DAC output to the noninverting input of the output buffer amplifier.
When this link is inserted, the DAC output is connected to the noninverting input of the output amplifier.
When this link is removed, the DAC output is disconnected from the noninverting input of the output buffer amplifier and the
DAC output voltage is accessible at the VOUT connector.
1 The RBUF bit of the control register must be set to high to enable the unity gain mode of operation.
2 The RBUF bit of the control register must be cleared to low to enable the gain of 2 mode of operation.
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Evaluation Board User Guide
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