Datasheet

DAC8562, DAC8563
DAC8162, DAC8163
DAC7562, DAC7563
www.ti.com SLAS719D –AUGUST 2010–REVISED AUGUST 2012
Table 13. Command Matrix for the DAC856x, DAC816x, and DAC756x
Command Address Data
DB23-
DESCRIPTION
DB15- DB3-
DB22
C2 C1 C0 A2 A1 A0 DB5 DB4 DB1 DB0
DB6 DB2
0 0 0 16/14/12 bit DAC data Write to DAC-A input register
X
(1)
0 0 0 0 0 1 16/14/12 bit DAC data Write to DAC-B input register
1 1 1 16/14/12 bit DAC data Write to DAC-A and DAC-B input registers
0 0 0 16/14/12 bit DAC data Write to DAC-A input register and update all DACs
X 0 1 0 0 0 1 16/14/12 bit DAC data Write to DAC-B input register and update all DACs
1 1 1 16/14/12 bit DAC data Write to DAC-A and DAC-B input register and update all DACs
0 0 0 16/14/12 bit DAC data Write to DAC-A input register and update DAC-A
X 0 1 1 0 0 1 16/14/12 bit DAC data Write to DAC-B input register and update DAC-B
1 1 1 16/14/12 bit DAC data Write to DAC-A and DAC-B input register and update all DACs
0 0 0 X Update DAC-A
X 0 0 1 0 0 1 X Update DAC-B
1 1 1 X Update all DACs
0 0 Gain: DAC-B gain = 2, DAC-A gain = 2 (default with internal V
REF
)
0 1 Gain: DAC-B gain = 2, DAC-A gain = 1
X 0 0 0 0 1 0 X
1 0 Gain: DAC-B gain = 1, DAC-A gain = 2
1 1 Gain: DAC-B gain = 1, DAC-A gain = 1 (power-on default)
0 1 Power up DAC-A
X 1 0 0 X X 0 0 X 1 0 Power up DAC-B
1 1 Power up DAC-A and DAC-B
0 1 Power down DAC-A; 1 kΩ to GND
X 1 0 0 X X 0 1 X 1 0 Power down DAC-B; 1 kΩ to GND
1 1 Power down DAC-A and DAC-B; 1 kΩ to GND
0 1 Power down DAC-A; 100 kΩ to GND
X 1 0 0 X X 1 0 X 1 0 Power down DAC-B; 100 kΩ to GND
1 1 Power down DAC-A and DAC-B; 100 kΩ to GND
0 1 Power down DAC-A; Hi-Z
X 1 0 0 X X 1 1 X 1 0 Power down DAC-B; Hi-Z
1 1 Power down DAC-A and DAC-B; Hi-Z
X 0 Reset DAC-A and DAC-B input register and update all DACs
X 1 0 1 X X
X 1 Reset all registers and update all DACs (Power-on-reset update)
0 0 LDAC pin active for DAC-B and DAC-A
0 1 LDAC pin active for DAC-B; inactive for DAC-A
X 1 1 0 X X
1 0 LDAC pin inactive for DAC-B; active for DAC-A
1 1 LDAC pin inactive for DAC-B and DAC-A
X 0 Disable internal reference and reset DACs to gain = 1
X 1 1 1 X X
X 1 Enable Internal Reference & reset DACs to gain = 2
(1) X' denotes don't care bits.
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