Datasheet

DAC7568
DAC8168
DAC8568
www.ti.com SBAS430D –JANUARY 2009–REVISED MAY 2012
INPUT SHIFT REGISTER DB4), and four additional feature bits. The 16 data
bits comprise the 16-, 14-, or 12-bit input code.
The input shift register (SR) of the DAC7568,
DAC8168, and DAC8568 is 32 bits wide (as shown in The DAC7568, DAC8168, and DAC8568 support a
Table 8, Table 9, and Table 10, respectively), and number of different load commands. The load
consists of four Prefix bits (DB31 to DB28), four commands are summarized in Table 11.
control bits (DB27 to DB24), 16 data bits (DB23 to
Table 8. DAC8568 Data Input Register Format
DB31 DB27 DB23 DB19 DB4 DB0
0 X X X
C3 C2 C1 C0 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 F3 F2 F1 F0
|-- Prefix Bits --| |- Control Bits -| | Address Bits | |-------------------------------------- Data Bits --------------------------------------| | Feature Bits |
Table 9. DAC8168 Data Input Register Format
DB31 DB27 DB23 DB19 DB4 DB0
0 X X X
C3 C2 C1 C0 A3 A2 A1 A0 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
X X
F3 F2 F1 F0
|-- Prefix Bits --| |- Control Bits -| | Address Bits | |-------------------------------- Data Bits --------------------------------| | Feature Bits |
Table 10. DAC7568 Data Input Register Format
DB31 DB27 DB23 DB19 DB4 DB0
0 X X X
C3 C2 C1 C0 A3 A2 A1 A0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
X X X X
F3 F2 F1 F0
|-- Prefix Bits --| |- Control Bits -| | Address Bits | |-------------------------- Data Bits --------------------------| | Feature Bits |
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