CS4294 datasheet(24/42 Pages) CIRRUS

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CS4294

DS326PP4

6.1.15 PCM LFE DAC Rate (Index 30h)

SR[15:0]

LFE DAC Sample Rate.

Default

Read-only value BB80h, indicating 48 kHz sample rate.

6.1.16 PCM LR ADC Rate (Index 32h)

SR[15:0]

LR ADC Sample Rate.

Default

Read-only value BB80h, indicating 48 kHz sample rate.

6.1.17 Center LFE Volume (Index 36h)

LFE[5:0]

LFE Volume. Least significant bit represents -1.5 dB with 00000 = 0 dB. The total range is 0 dB to -

94.5 dB.

CNT[5:0]

Center Volume.Least significant bit represents -1.5 dB with 00000 = 0 dB. The total range is 0 dB to -

94.5 dB.

Default

8080h, indicating mute with 0 dB attenuation.

6.1.18 LR Surround Volume (Index 38h)

LSR[5:0]

Left Surround Volume. Least significant bit represents -1.5 dB with 00000 = 0 dB. The total range is 0

dB to -94.5 dB.

RSR[5:0]

Right Surround Volume. Least significant bit represents -1.5 dB with 00000 = 0 dB. The total range is 0

dB to -94.5 dB.

Default

8080h, indicating 0 dB attenuation.

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

SR15

SR14

SR13

SR12

SR11

SR10

SR9

SR8

SR7

SR6

SR5

SR4

SR3

SR2

SR1

SR0

D15

D14

D13

D12

D11

D10

Mute

LFE5

LFE4

LFE3

LFE2

LFE1

LFE0

Mute

CNT5 CNT4 CNT3 CNT2 CNT1 CNT0

LFE[5:0]/LSR[5:0]

CNT[5:0]/RSR[5:0]

Write

LFE[5:0]/LSR[5:0]

CNT[5:0]/RSR[5:0]

Read

Gain Level

000000

0 dB

000001

-1.5 dB

……

...

111111

-94.5 dB

Table 6. 6 Channel Volume Attenuation

D15

D14

D13

D12

D11

D10

Mute

LSR5

LSR4

LSR3

LSR2

LSR1

LSR0

Mute

RSR5 RSR4 RSR3 RSR2 RSR1 RSR0

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