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AD1986ABSTZ Datasheet(PDF) 34 Page - Analog Devices |
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AD1986ABSTZ Datasheet(HTML) 34 Page - Analog Devices |
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34 / 56 page  AD1986A Rev. 0 | Page 34 of 56 SURROUND DAC PCM RATE (REGISTER 0x2E) This read/write sample rate control register contains a 16-bit unsigned value, representing the rate of operation in Hz. If the VRA bit (0x2A D00) is 0, this register is forced to 48 kHz (0xBB80). If VRA is 1, this register can be programmed with the actual sample rate. If the DRA bit (0x2A D01) is set, the surround DAC is inoperative and automatically powered down. Reg Name D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Default 0x2E SURR_1 DAC PCM Rate R15 R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 R0 0xBB80 Table 93. Register Function R [15:0] (Sample Rate) The sampling frequency range is from 7 kHz (0x01B58) to 48 kHz (0xBB80) in 1 Hz increments. If zero is written to VRA then the sample rates are reset to 48 kHz. C/LFE DAC PCM RATE (REGISTER 0x30) This read/write sample rate control register contains a 16-bit unsigned value, representing the rate of operation in Hz. If the VRA bit (0x2A D00) is 0 this register is forced to 48 kHz (0xBB80). If VRA is 1, this register can be programmed with the actual sample rate. If the DRA bit (0x2A D01) is set, the C/LFE DAC is inoperative and automatically powered down. Reg Name D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Default 0x30 C/LFE DAC PCM Rate R15 R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 R0 0xBB80 Table 94. Register Function R [15:0] (Sample Rate) The sampling frequency range is from 7 kHz (0x01B58) to 48 kHz (0xBB80) in 1 Hz increments. If 0 is written to VRA then the sample rates are reset to 48 kHz. ADC PCM RATE (REGISTER 0x32) This read/write sample rate control register contains 16-bit unsigned value, representing the rate of operation in Hz. If the VRA bit (0x2A D00) is 0 (zero) this register is forced to 48 kHz (0xBB80). If VRA is 1, this register can be programmed with the actual sample rate. Reg Name D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Default 0x32 ADC 0 PCM Rate R15 R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 R0 0xBB80 Table 95. Register Function R [15:0] (Sample Rate) The sampling frequency range is from 7 kHz (0x01B58) to 48 kHz (0xBB80) in 1 Hz increments. If 0 is written to VRA then the sample rates are reset to 48 kHz. |
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