CS4298 Datasheet, PDF (32/52 Pages) Cirrus Logic – SoundFusion Audio/Modem Codec 97 (AMC 97)

CS4298
6.1.25 Handset DAC/ADC Rate (Index 44h)
D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
SR15 SR14 SR13 SR12 SR11 SR10 SR9 SR8 SR7 SR6 SR5 SR4 SR3 SR2 SR1 SR0
SR[15:0] Handset DAC/ADC Sample Rate.
Default
Read-only value BB80h, indicating 48 kHz sample rate.
6.1.26 Line 1 DAC/ADC Level (Index 46h)
D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Mute
DAC3 DAC2 DAC1 DAC0 Mute
ADC3 ADC2
Mute[D15] Mute. Mutes the input of Line 1 DAC.
Mute[D7] Mute. Mutes the output of Line 1 ADC.
DAC[3:0] Line 1 DAC attenuation. Least significant bit represents 1.5 dB with 00000 = 0 dB. The total range is 0
dB to -22.5 dB.
ADC[3:2] Line 1 ADC gain. Least significant bit represents 6 dB with 00 = 0 dB. The total range is 0 dB to +18 dB.
Default 8080h indicating mute with 0 dB attenuation or gain.
When EAM of the AC Mode Control (Index 5Eh) is set, the Line 1 DAC attenuation is controlled by
ML[4:0] of the Alternate Volume (Index 04h) register.
6.1.27 Line 2 DAC/ADC Level (Index 48h)
D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Mute
DAC3 DAC2 DAC1 DAC0 Mute
ADC3 ADC2
Mute[D15] Mute. Mutes the input of Line 2 DAC.
Mute[D7] Mute. Mutes the output of Line 2 ADC.
DAC[3:0] Line 2 DAC attenuation. Least significant bit represents 1.5 dB with 00000 = 0 dB. The total range is 0
dB to -22.5 dB.
ADC[3:2] Line 2 ADC gain. Least significant bit represents 6 dB with 00 = 0 dB. The total range is 0 dB to +18 dB.
Default 8080h indicating mute with 0 dB attenuation or gain.
When EAM of the AC Mode Control (Index 5Eh) is set, the Line 2 DAC attenuation is controlled by
MR[4:0] of the Alternate Volume (Index 04h) register.
6.1.28 Handset DAC/ADC Level (Index 4Ah)
D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Mute
DAC3 DAC2 DAC1 DAC0 Mute
ADC3 ADC2
Mute[D15] Mute. Mutes the input of Handset DAC.
Mute[D7] Mute. Mutes the output of Handset ADC.
DAC[3:0] Handset1 DAC attenuation. Least significant bit represents 1.5 dB with 00000 = 0 dB. The total range
is 0 dB to -22 dB.
ADC[3:2] Handset ADC gain. Least significant bit represents 6 dB with 00 = 0 dB. The total range is 0 dB to
+18 dB.
Default 8080h indicating mute with 0 dB attenuation or gain.
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DS315PP2