STA328 datasheet(20/41 Pages) STMICROELECTRONICS

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STA328

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7.6.5

Zero-Crossing Volume Enable

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

ings no clicks will be audible.

7.6.6

Soft Volume Update Enable

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’.

7.7 Configuration Register F (Address 05h)

7.7.1

Output Configuration Selection

Table 15. Output Configuration Selections

7.7.2

nvalid Input Detect Mute Enable

Setting the IDE bit enables this function, which looks at the input I2S data and clocking and will automati-

cally mute all outputs if the signals are perceived as invalid.

BIT

R/W

RST

NAME

DESCRIPTION

R/W

ZCE

Zero-Crossing Volume Enable:

1 – Volume adjustments will only occur at digital zero-crossings

0 – Volume adjustments will occur immediately

BIT

R/W

RST

NAME

DESCRIPTION

R/W

SVE

Soft Volume Enable:

1 – Volume adjustments will use soft volume

0 – Volume adjustments will occur immediately

EAPD

PWDN

ECLE

RES

BCLE

IDE

OCFG1

OCFG0

BIT

R/W

RST

NAME

DESCRIPTION

1…0

R/W

OCFG

(1…0)

Output Configuration Selection

00 – 2-channel (Full-bridge) Power, 1-channel DDX is default

OCFG (1...0)

Output Power Configuration

2 Channel (Full-Bridge) Power, 1 Channel DDX:

1A/1B

◊ 1A/1B

2A/2B

◊ 2A/2B

2(Half-Bridge).1(Full-Bridge) On-Board Power:

◊ 1A

Binary

◊ 1B

Binary

3A/3B

◊ 2A/2B Binary

Reserved

1 Channel Mono-Parallel:

◊ 1A/1B

◊ 2A/2B

BIT

R/W

RST

NAME

DESCRIPTION

R/W

IDE

Invalid Input Detect Auto-Mute Enable:

0 – Disabled

1 – Enabled

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