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ADAU1761BCPZ-R7 Datasheet(PDF) 85 Page - Analog Devices |
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ADAU1761BCPZ-R7 Datasheet(HTML) 85 Page - Analog Devices |
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85 / 92 page ![]() ADAU1761 Rev. C | Page 85 of 92 R63: DSP Slew Modes, 16,631 (0x40F7) The DSP slew modes register sets the slew source for each output. The slew source can be either the DSP (digital slew) or the codec (analog slew). When these bits are set to Logic 0, the codec provides volume slew according to the ASLEW[1:0] bits in Register R34 (playback pop/click suppression register, Address 0x4028). When these bits are set to Logic 1, the slew is provided and defined by the DSP program, disabling the codec volume slew. Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reserved MOSLW ROSLW LOSLW RHPSLW LHPSLW Table 88. DSP Slew Modes Register Bits Bit Name Description 4 MOSLW Mono output slew generation. 0 = codec (default). 1 = DSP. 3 ROSLW Line output right slew generation. 0 = codec (default). 1 = DSP. 2 LOSLW Line output left slew generation. 0 = codec (default). 1 = DSP. 1 RHPSLW Headphone right slew generation. 0 = codec (default). 1 = DSP. 0 LHPSLW Headphone left slew generation. 0 = codec (default). 1 = DSP. R64: Serial Port Sampling Rate, 16,632 (0x40F8) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reserved SPSR[2:0] Table 89. Serial Port Sampling Rate Register Bits Bit Name Description [2:0] SPSR[2:0] Serial port sampling rate. The serial port sampling rate is a ratio of the base sampling rate, fS. The base sampling rate is determined by the operating frequency of the core clock. For most applications, the serial port sampling rate should equal the converter sampling rate (set using the CONVSR[2:0] bits in Register R17) and the DSP sampling rate (set using the DSPSR[3:0] bits in Register R57). Setting Sampling Rate Base Sampling Rate (fS = 48 kHz) 000 fS 48 kHz, base (default) 001 fS/6 8 kHz 010 fS/4 12 kHz 011 fS/3 16 kHz 100 fS/2 24 kHz 101 fS/1.5 32 kHz 110 fS/0.5 96 kHz 111 Reserved |
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