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AD5669RBCBZ-1-R5 Folha de dados(PDF) 23 Page - Analog Devices |
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AD5669RBCBZ-1-R5 Folha de dados(HTML) 23 Page - Analog Devices |
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23 / 30 page ![]() Data Sheet AD5629R/AD5669R Rev. F | Page 23 of 30 FRAME 2 COMMAND BYTE FRAME 1 SLAVE ADDRESS 19 9 1 SCL START BY MASTER ACK. BY AD5629R/AD5669R ACK. BY AD5629R/AD5669R SDA R/W DB23 A0 A1 1 1 0 1 0 DB22 DB21 DB20 DB19 DB18 DB17 DB16 19 9 1 ACK. BY AD5629R/AD5669R ACK. BY AD5629R/AD5669R FRAME 4 LEAST SIGNIFICANT DATA BYTE FRAME 3 MOST SIGNIFICANT DATA BYTE STOP BY MASTER SCL (CONTINUED) SDA (CONTINUED) DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Figure 51. I2C Write Operation FRAME 2 COMMAND BYTE FRAME 1 SLAVE ADDRESS 19 9 1 SCL START BY MASTER ACK. BY AD5629R/AD5669R ACK. BY MASTER SDA R/W DB23 A0 A1 1 1 0 1 0 DB22 DB21 DB20 DB19 DB18 DB17 DB16 19 9 1 ACK. BY MASTER NO ACK. FRAME 4 LEAST SIGNIFICANT DATA BYTE FRAME 3 MOST SIGNIFICANT DATA BYTE STOP BY MASTER SCL (CONTINUED) SDA (CONTINUED) DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Figure 52. I2C Read Operation Table 8. Command Definitions Command C3 C2 C1 C0 Description 0 0 0 0 Write to Input Register n 0 0 0 1 Update DAC Register n 0 0 1 0 Write to Input Register n; update all (software LDAC) 0 0 1 1 Write to and update DAC Channel n 0 1 0 0 Power down/power up DAC 0 1 0 1 Load clear code register 0 1 1 0 Load LDAC register 0 1 1 1 Reset (power-on reset) 1 0 0 0 Set up internal REF register 1 0 0 1 Enable multiple byte mode 1 0 1 0 Reserved – – – – Reserved 1 1 1 1 Reserved Table 9. Address Commands Address (n) A3 A2 A1 A0 Selected DAC Channel 0 0 0 0 DAC A 0 0 0 1 DAC B 0 0 1 0 DAC C 0 0 1 1 DAC D 0 1 0 0 DAC E 0 1 0 1 DAC F 0 1 1 0 DAC G 0 1 1 1 DAC H 1 1 1 1 All DACs |
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