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LTC1661 Datasheet(PDF) 9 Page - Linear Technology |
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LTC1661 Datasheet(HTML) 9 Page - Linear Technology |
9 / 14 page LTC1661 9 1661fa OPERATION Table 2. DAC Control Functions CONTROL INPUT REGISTER STATUS DAC REGISTER STATUS POWER-DOWN STATUS (SLEEP/WAKE) COMMENTS A3 A2 A1 A0 0 0 0 0 No Change No Update No Change No Operation. Power-Down Status Unchanged (Part Stays in Wake or Sleep Mode) 0 0 0 1 Load DAC A No Update No Change Load Input Register A with Data. DAC Outputs Unchanged. Power-Down Status Unchanged 0 0 1 0 Load DAC B No Update No Change Load Input Register B with Data. DAC Outputs Unchanged. Power-Down Status Unchanged 0 0 1 1 Reserved 0 1 0 0 Reserved 0 1 0 1 Reserved 0 1 1 0 Reserved 0 1 1 1 Reserved 1 0 0 0 No Change Update Outputs Wake Load Both DAC Regs with Existing Contents of Input Regs. Outputs Update. Part Wakes Up 1 0 0 1 Load DAC A Update Outputs Wake Load Input Reg A. Load DAC Regs with New Contents of Input Reg A and Existing Contents of Reg B. Outputs Update. Part Wakes Up 1 0 1 0 Load DAC B Update Outputs Wake Load Input Reg B. Load DAC Regs with Existing Contents of Input Reg A and New Contents of Reg B. Outputs Update. Part Wakes Up 1 0 1 1 Reserved 1 1 0 0 Reserved 1 1 0 1 No Change No Update Wake Part Wakes Up. Input and DAC Regs Unchanged. DAC Outputs Reflect Existing Contents of DAC Regs 1 1 1 0 No Change No Update Sleep Part Goes to Sleep. Input and DAC Regs Unchanged. DAC Outputs Set to High Impedance State 1 1 1 1 Load DACs A, B with Same 10-Bit Code Update Outputs Wake Load Both Input Regs. Load Both DAC Regs with New Contents of Input Regs. Outputs Update. Part Wakes Up DIN SCK CS/LD A3 A2 INPUT CODE DON’T CARE A1 A0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 X1 X0 1661 F01 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (SCK ENABLED) (LTC1661 RESPONDS) CONTROL CODE INPUT WORD W0 Figure 1. Register Loading Sequence |
Similar Part No. - LTC1661_15 |
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Similar Description - LTC1661_15 |
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