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AD1837AASZ 数据表(PDF) 21 Page - Analog Devices |
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AD1837AASZ 数据表(HTML) 21 Page - Analog Devices |
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21 / 24 page ![]() REV. A AD1837A –21– Table IX. ADC Peak Function Four Address R/ W RES Six Data Bits Fixed Bits 15, 14, 13, 12 11 10 9, 8, 7, 6, 5, 4 3, 2, 1, 0 1010 = Left ADC 1 0 000000 = 0 dBFS 0000 1011 = Right ADC 000001 = –1 dBFS 000010 = –2 dBFS These four bits are always zero. 111111 = –63 dBFS Table X. ADC Control 1 Function ADC Sample Address R/ W RES Reserved Filter Power-Down Rate Reserved 15, 14, 13, 12 11 10 9 8 7 6 5, 4, 3, 2, 1, 0 1100 0 0 0 0 = All Pass 0 = Normal 0 = 48 kHz 0, 0, 0, 0, 0, 0 1 = High-Pass 1 = Power-Down 1 = 96 kHz 0, 0, 0, 0, 0, 0 Table XI. ADC Control 2 Function R/ W Master/Slave ADC ADC Data- ADC MUTE Address RES RES Aux Mode Data Format Word Width Reserved Right Left 15, 14, 13, 12 11 10 9 8, 7, 6 5, 4 3, 2 1 0 1101 0 0 0 = Slave 000 = I 2S 00 = 24 Bits 0, 0 0 = On 0 = On 1 = Master 001 = RJ 01 = 20 Bits 1 = Mute 1 = Mute 010 = DSP 10 = 16 Bits 011 = LJ 11 = Reserved 100 = Packed 256 101 = Packed 128 110 = Auxiliary 256 111 = Auxiliary 512 Table XII. ADC Control 3 Function R/ W IMCLK ADC DAC ADC Address RES RES Reserved Clocking Scaling Peak Readback Test Mode Test Mode 15, 14, 13, 12 11 10 9, 8 7, 6 5 4, 3, 2 1, 0 1110 0 0 0, 0 00 = MCLK 20 = Disabled Peak Readback 000 = Normal Mode 00 = Normal Mode 01 = MCLK 1 = Enabled Peak Readback All others reserved All others reserved 10 = MCLK 2/3 11 = MCLK 2 Table VIII. DAC Volume Control Function Address R/ W RES DAC Volume 15, 14, 13, 12 11 10 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 0010 = DACL1 0 0 0000000000 = Mute 0011 = DACR1 0000000001 = 1/1023 0100 = DACL2 0000000010 = 2/1023 0101 = DACR2 1111111110 = 1022/1023 0110 = DACL3 1111111111 = 1023/1023 0111 = DACR3 1000 = DACL4 1001 = DACR4 |
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