CS42L56 查看數據表（PDF） - Cirrus Logic

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CS42L56

Ultralow Power, Stereo Codec with Class H Headphone Amp

Cirrus Logic 

CS42L56

6.35.2 Headphone Volume Control

Sets the volume of the signal out of the headphone amplifier.

HPxVOL[6:0]

0111111

...

0001100

...

0000001

0000000

1111111

...

1000100

1000011

...

1000000

Step Size:

Heaphone Volume

+12 dB

...

+12 dB

...

+1.0 dB

0 dB

-1.0 dB

...

-60.0 dB (Nominal Level (Note 1))

Mute

...

Mute (Note 2)

1.0 dB

Notes:

1. The step size may deviate from 1.0 dB. Refer to Figure 39 and Figure 40 on page 89.

2. See section “Analog Output Attenuation Characteristics” on page 26 for actual Mute Attenuation.

6.36 Line Volume Control: LINEA (Address 2Ah) & LINEB (Address 2Bh)

7

LINExMUTE

6

LINExVOL6

5

LINExVOL5

4

LINExVOL4

3

LINExVOL3

2

LINExVOL2

1

LINExVOL1

6.36.1 Line Channel x Mute

Configures an analog mute on the line amplifier.

LINExMUTE

0

1

HP Amp Mute

Disabled

Enabled

0

LINExVOL0

6.36.2 Line Volume Control

Sets the volume of the signal out of the line amplifier.

LINExVOL[6:0]

0111111

...

0001100

...

0000001

0000000

1111111

...

1000100

1000011

...

Step Size:

Line Volume

+12 dB

...

+12 dB

...

+1.0 dB

0 dB

-1.0 dB

...

-60.0 dB (Nominal Level (Note 1))

Mute (Note 2)

...

1.0 dB

DS851F2

83

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