CS4298 datasheet(32/52 Pages) CIRRUS

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CS4298

DS315PP2

6.1.25 Handset DAC/ADC Rate (Index 44h)

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)

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)

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)

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.

D15

D14

D13

D12

D11

D10

SR15

SR14

SR13

SR12

SR11

SR10

SR9

SR8

SR7

SR6

SR5

SR4

SR3

SR2

SR1

SR0

D15

D14

D13

D12

D11

D10

Mute

DAC3 DAC2 DAC1 DAC0

Mute

ADC3 ADC2

D15

D14

D13

D12

D11

D10

Mute

DAC3 DAC2 DAC1 DAC0

Mute

ADC3 ADC2

D15

D14

D13

D12

D11

D10

Mute

DAC3 DAC2 DAC1 DAC0

Mute

ADC3 ADC2

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