DAC3282_15 Datasheet, PDF (35/65 Pages) Texas Instruments – DAC3282 16-Bit, 625 MSPS, 2x Interpolating, Dual-Channel Digital-to-Analog Converter (DAC)

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DAC3282
SLAS646C – DECEMBER 2009 – REVISED MAY 2015
7.6.5 CONFIG4 (address = 0x04) [reset = 0xFF]
Figure 46. CONFIG4
7
6
5
4
3
2
1
0
coarse_daca
coarse_dach
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 13. CONFIG4 Field Descriptions
Bit Field
7:4 coarse_daca
Type
R/W
Reset
1111
Description
Scales the DACA output current in 16 equal steps.
V_EXTIO
Rbias
´ (coarse_daca/b + 1)
3:0 coarse_dach
R/W
1111
Scales the DACB output current in 16 equal steps.
7.6.6 CONFIG5 (address = 0x05) READ ONLY
Figure 47. CONFIG5
7
6
5
4
3
2
1
0
tempdata
R
R
R
R
R
R
R
R
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Bit Field
7:0 tempdata
Table 14. CONFIG5 Field Descriptions
Type
R
Reset
N/A
Description
This is the output from the chip temperature sensor. The value
of this register in two’s complement format represents the
temperature in degrees Celsius. This register must be read
with a minimum SCLK period of 1µs. (Read Only)
7.6.7 CONFIG6 (address =0x06) [reset = 0x00]
Figure 48. CONFIG6
7
6
5
4
3
2
1
0
Unused
alarm_mask
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Bit Field
7
Unused
6:0 alarm_mask
Table 15. CONFIG6 Field Descriptions
Type
R/W
R/W
Reset
0
0000000
Description
Reserved for factory use.
These bits control the masking of the alarm outputs. This
means that the ALARM_SDO pin will not be asserted if the
appropriate bit is set. The alarm will still show up in the
CONFIG7 bits. (0=not masked, 1= masked).
alarm_mask
Masked Alarm
6
alarm_from_zerochk
5
alarm_fifo_collision
4
reserved
3
alarm_from_iotest
2
not used (expansion)
1
alarm_fifo_2away
0
alarm_fifo_1away
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