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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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L9679ETR bảng dữ liệu(PDF) 92 Page - STMicroelectronics |
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L9679ETR bảng dữ liệu(HTML) 92 Page - STMicroelectronics |
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92 / 127 page  ADC Request (ADCREQx) Voltage Measurement Selection ADC Results (ADCRESx) Bit[6:0] Hex Bit[9:0] 1 0 0 0 1 1 0 0x46 SF0 pin voltage SF0 1 0 0 0 1 1 1 0x47 SF1 pin voltage SF1 1 0 0 1 0 0 0 0x48 SF2 pin voltage SF2 1 0 0 1 0 0 1 0x49 SF3 pin voltage SF3 1 0 0 1 0 1 0 0x4A SF4 pin voltage SF4 1 0 0 1 0 1 1 0x4B SF5 pin voltage SF5 1 0 0 1 1 0 0 0x4C SF6 pin voltage SF6 1 0 0 1 1 0 1 0x4D SF7 pin voltage SF7 1 0 0 1 1 1 0 0x4E 1 0 0 1 1 1 1 0x4F 1 0 1 0 0 0 0 0x50 1 0 1 0 0 0 1 0x51 Proper scaling is necessary for various measurements. The divider ratios vary by measurement and are summarized by function in the table below. Table 15. Diagnostics divider ratios Measurements Divider Ratio 15:1 10:1 7:1 4:1 1:1 SSxy √ SFx √ VSYNC √ VSAT √ TEST √ RSUx √ VCC √ CVDD √ VINT3V3 √ Bandgap (VBG1/VBG2) √ For measurements other than voltage (current, resistance, temperature etc.) the ranges are specified in the electrical parameters section of the relevant block. 10.1 Analog-to-digital algorithmic converter The device hosts one integrated 10-bit analog-to-digital converter, running at a clock frequency of 16 MHz. The ADC output is processed by a D-to-D converter with the following functions: • Use of trimming bits to recover additional gain error due to resistor dividers mismatch; • Digital low-pass filtering; • Conversion from 12 to 10 bits. L9679E System voltage diagnostics DS12485 - Rev 8 page 92/127 |
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