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LM9812 датащи(PDF) 20 Page - National Semiconductor (TI) |
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LM9812 датащи(HTML) 20 Page - National Semiconductor (TI) |
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20 / 37 page ![]() 20 http://www.national.com 21 10 101 Reset Pulse Width Reset Pulse Position Bit 2 Bit 0 Bit 4 Bit 0 22 10 110 Reference Sample Position - - - Bit 4 Bit 0 23 10 111 Signal Sample Position - - - Bit 4 Bit 0 24 11 000 Misc Group 2 Signal Polarity Preview 1 Preview 2 Internal/ External SYNC pulse TR Pulse Mode (1 or 2 Pulses) Red/Blue Order for 2 Output sensors 3 or 2 Output sensor Standard or Odd/Even sensor 25 11 001 Misc Group 3 Power Down 8 or 10 bit Coefficient Bus - TR2 Enable TR1 Enable RS Enable Ø2 Enable Ø1 Enable 26 11 010 Misc Group 4 Gain Coefficient Write Phase Offset Coefficient Write Phase Data Read Phase Ø1 Polarity During TR1 TR2 Pulse Polarity TR1 Pulse Polarity RS Pulse Polarity Ø1/Ø2 Polarity 27 11 011 Test Mode 1 TB7 TB6 000 00 0 28 11 100 Test Mode 2 00 000 00 0 Table 2: Configuration Register Parameters Note: tMCLK = 1/fMCLK = 1 MCLK period. Examples given in parenthesis are for fMCLK = 24MHz (tMCLK = 41.66ns). Parameter (Address) Control Bits Result Red Offset DAC (0) Green Offset DAC (1) Blue Offset DAC (2) D5 (SIGN) 0 0 0 • • • 0 0 1 1 1 • • • 1 1 D4 (MSB) 0 0 0 • • • 1 1 0 0 0 • • • 1 1 D3 0 0 0 • • • 1 1 0 0 0 • • • 1 1 D2 0 0 0 • • • 1 1 0 0 0 • • • 1 1 D1 0 0 1 • • • 1 1 0 0 1 • • • 1 1 D0 (LSB) 0 1 0 • • • 0 1 0 1 0 • • • 0 1 Typical Offset (in ADC LSBs) 0.00 +4.2 +8.4 • • • +126.0 +130.2 0.00 -4.2 -8.4 • • • -126.0 -130.2 Address (Decimal) Address (Binary) Data Bits A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 |
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