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SI1153 数据表(PDF) 8 Page - Silicon Laboratories |
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SI1153 数据表(HTML) 8 Page - Silicon Laboratories |
8 / 58 page 3.3 Power Consumption The Si1153 alternates between three power consumption states: Active, Suspend, and Sleep. (See the diagram below for an illustrata- tion of each of these states.) The total power consumed by the part depends heavily on the measurement rate, measurement mode, and measurement gain for the various channels enabled. The power levels for the three modes, as well as the Active Power time per reading, are provided in this document. The Suspend time (where the A/D and PD are operating) has two parts. One is determined by the user setup and can be determined by the DECIM_RATE and HW_GAIN setup information in Section 7.2 Channel Specific Setup Areas of the Parameter Table, while the other (A/D Startup time) is determined by tadstart, shown in Table 8.2 Electrical Performance Characteristics on page 38. Sleep Power Sum is “Processing Time Per Measurement” (t process) Suspend Power (PD & A/D Active) The A/D time (per measurement) is determined by the user’s configuration of the parameter table. This complete measurement is repeated at the rates determined by the user’s configuration of the parameter table. Power Time Active Power A/D startup time per measurement is determined by the data sheet (tadstart) A Phase B Phase Figure 3.5. Power Consumption States During a Reading Every A/D conversion has three periods: 155 μs at 4.5 mA (setup time by internal controller) 48.8 μs at 525 μA (setup time by A/D) 48.8 μs * (2 ** gain) at 525 μA (Actual A/D time that will vary with integration time) Si1153 Data Sheet Functional Description silabs.com | Smart. Connected. Energy-friendly. Rev. 0.9 | 7 |
类似零件编号 - SI1153 |
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类似说明 - SI1153 |
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