CS4294 datasheet(18/42 Pages) CIRRUS

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CS4294

DS326PP4

6.1

6.1.1

Reset (Index 00h)

SE[4:0]

Enhanced Stereo Technique.

00110 - Crystal 3D Stereo Enhancement.

ID8 set

18-bit ADC resolution.

ID7 set

20-bit DAC resolution.

ID4 set

Headphone out support. (Alternate Line Output)

Read-only data

Mode 0

1990h

Mode 1

1980h

Any write to this register causes the audio control registers (Index 02h - 38h) and the Crystal specific

registers (Index 5Eh - 68h) to be reset forcing them to their default state. The mode control bits

MD[1:0] of the AC Mode Control (Index 5Eh) register are also cleared forcing the Codec to Mode 0

configuration. Reads return configuration information about the audio Codec

6.1.2

Master Volume (Index 02h)

Mute

Master mute for the LINE_OUT_L and the LINE_OUT_R output signals.

ML[5:0]

Master Volume control for LINE_OUT_L pin. Least significant bit represents -1.5 dB with 00000 = 0 dB.

The total range is 0 dB to -94.5 dB.

MR[5:0]

Master Volume control for LINE_OUT_R pin. Least significant bit represents -1.5 dB with 00000 = 0 dB.

The total range is 0 dB to -94.5 dB.

Default

8000h, corresponding to 0 dB attenuation and mute on.

In Mode 1 the LINE_OUT volume is controlled by the Left Right Surround (Index 38h) register in place

of Master Volume.

Mode

D15

D14

D13

D12

D11

D10

SE4

SE3

SE2

SE1

SE0

ID8

ID7

ID4

0000

SE4

SE3

SE2

SE1

SE0

ID8

ID7

0000000

D15

D14

D13

D12

D11

D10

Mute

ML5

ML4

ML3

ML2

ML1

ML0

MR5

MR4

MR3

MR2

MR1

MR0

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