CS42L50 datasheet(30/48 Pages) CIRRUS

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CS42L50

DS544PP1

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

DIF1

DIF0

DESCRIPTION

Format

FIGURE

000

I2S, up to 24-bit data

030

001

Reserved

010

Left Justified, up to 24-bit data,

225

011

Right Justified, 24-bit data

327

100

Right Justified, 20-bit data

429

101

Right Justified, 16-bit data

526

110

Right Justified, 18-bit data

628

111

Identical to Format 0

030

Table 6. Digital Interface Format

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