CDB42L50 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

Manufacturer

CDB42L50

Low Voltage, Stereo CODEC with Headphone Amp

Cirrus Logic 

CS42L50

11 - Line Mute

Function:

The Line Amplifier Gain Compensation bits allow the user to scale the full-scale line output level according

to the power supply voltage used. The full-scale line output level will be equal to {gain factor}xVA, where

{gain factor} is selected from options above.

The Line Mute option is available to allow muting of the line output when the headphone output is still in

use and the line amp is still powered up. To use this feature, first mute the outputs via the ATAPI bits.

Next, set the LINE GAIN to Line Mute. Finally, un-mute the outputs with the ATAPI bits. Following these

steps will ensure a click free mute.

4.2.28 DIGITAL INTERFACE FORMAT (DIF)

Default = 000 - Format 0 (I2S, up to 24-bit data)

Function:

The required relationship between the Left/Right clock, serial clock and serial data is defined by the Digital

Interface Format and the options are detailed in Figures 25-30. It is recommended that the ADC and the

DAC is configured for the same Digital Interface Format.

DIF2

0

0

0

0

1

1

1

1

DIF1

0

0

1

1

0

0

1

1

DIF0

0

1

0

1

0

1

0

1

DESCRIPTION

I2S, up to 24-bit data

Reserved

Left Justified, up to 24-bit data,

Right Justified, 24-bit data

Right Justified, 20-bit data

Right Justified, 16-bit data

Right Justified, 18-bit data

Identical to Format 0

Table 6. Digital Interface Format

Format

0

-

2

3

4

5

6

0

FIGURE

30

-

25

27

29

26

28

30

30

DS544PP1

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