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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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WM8216SEFL/R bảng dữ liệu(PDF) 24 Page - Wolfson Microelectronics plc |
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WM8216SEFL/R bảng dữ liệu(HTML) 24 Page - Wolfson Microelectronics plc |
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24 / 27 page  WM8216 Production Data w PD Rev 4.0 March 2007 24 REGISTER BIT NO BIT NAME(S) DEFAULT DESCRIPTION Offset DAC (Odd) 7:0 DACO[7:0] 00000000 Odd channel 8-bit offset DAC value (mV) = 255*(DACR[7:0]-127.5)/127.5 Offset DAC (Even) 7:0 DACE[7:0] 00000000 Even channel 8-bit offset DAC value (mV) = 255*(DACG[7:0]-127.5)/127.5 Offset DAC (Odd&Even) 7:0 DACOE[7:0] 00000000 A write to this register location causes both the odd and even offset DAC registers to be overwritten by the new value 0 PGAO[0] 0 This register bit forms the LSB of the odd channel PGA gain code. PGA gain is determined by combining this register bit and the 8 MSBs contained in register address 28 hex. PGA Gain LSB (Odd) 7:1 Not used 0000000 Must be set to 0 0 PGAE[0] 0 This register bit forms the LSB of the even channel PGA gain code. PGA gain is determined by combining this register bit and the 8 MSBs contained in register address 29 hex. PGA Gain LSB (Even) 7:1 Not used 0000000 Must be set to 0 0 PGAOE[0] 0 Writing a value to this location causes both the odd and even channel PGA LSB gain values to be overwritten by the new value. PGA Gain LSB (Odd&Even) 7:1 Not used 0000000 Must be set to 0 PGA gain MSBs (Odd) 7:0 PGAO[8:1] 00001101 Bits 8 to 1 of Odd channel PGA gain. Combined with Odd LSB register bit to form complete PGA gain code. This determines the gain of the Odd channel PGA according to the equation: Odd channel PGA gain (V/V) = 0.66 + PGAO[8:0]x7.34/511 PGA gain MSBs (Even) 7:0 PGAE[8:1] 00001101 Bits 8 to 1 of Even channel PGA gain. Combined with Even LSB register bit to form complete PGA gain code. This determines the gain of the Even channel PGA according to the equation: Even channel PGA gain (V/V) = 0.66 + PGAE[8:0]x7.34/511 PGA gain MSBs (Odd/Even) 7:0 PGAOE[8:1] 00000000 A write to this register location causes both the Odd and Even channel PGA MSB gain registers to be overwritten by the new value. Table 6 Register Control Bits |
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