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WM8255 датащи(PDF) 9 Page - Cirrus Logic |
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WM8255 датащи(HTML) 9 Page - Cirrus Logic |
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9 / 49 page ![]() WM8255 Production Data w PD, Rev 4.7, August 2013 9 PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT EXTERNAL LED CURRENT DRIVE Coarse Absolute LED Current Drive Range Adjust EXTRES = 13K7 ohm +/- 1% over process and temperature. Coarse LED Current Full Scale Range with External Reference including absolute and temperature tolerances ILEDCRE0 LEDIRNG = 00 25 32 mA ILEDCRE1 LEDIRNG = 01 30 42.25 mA ILEDCRE2 LEDIRNG = 10 40 56.5 mA ILEDCRE3 LEDIRNG = 11 50 68 mA Coarse LED Current Maximum Limit Range ILEDMAX LEDIMAX = 0 28 45 mA ILEDMAX LEDIMAX = 1 35 53 mA FINE LED ABSOLUTE CURRENT DRIVE Resolution ILEDFRes 8 bits Range ILEDFRan ILEDCRXX Zero Current 0 mA Differential non-linearity ILEDFDNL No missing codes -1 1.15 LSB Integral non-linearity ILEFINL 1 LSB Compliance Voltage ILEDR ILEDRVC ILED=50mA 0.75+ AGND AVDD1 - 0.5V V Compliance Voltage ILEDG and ILEDB ILEDGBVC ILED=50mA 0.25+ AGND AVDD1 - 0.5V V |
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