STA32813TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STA32813TR

2.1-channel high-efficiency digital audio system

STMicroelectronics 

Register description

STA328

Table 38. Zero-crossing volume enable

Bit R/W RST

Name

Description

6

RW 1

ZCE

Zero-crossing volume enable:

1: volume adjustments will only occur at digital zero-

crossings

0: volume adjustments will occur immediately

The ZCE bit enables zero-crossing volume adjustments. When volume is adjusted on digital

zero-crossings no clicks will be audible.

Table 39. Soft volume update enable

Bit R/W RST

Name

Description

7

RW 1

SVE

Soft volume enable:

1: volume adjustments will use soft volume

0: volume adjustments will occur immediately

The STA328 includes a soft volume algorithm that will step through the intermediate volume

values at a predetermined rate when a volume change occurs. By setting SVE = 0 this can

be bypassed and volume changes will jump from old to new value directly. This feature is

only available if individual channel volume bypass bit is set to 0.

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