STA326 datasheet(35/64 Pages) STMICROELECTRONICS

部件名	STA326

功能描述	2.1-channel high-efficiency digital audio system

PDF	64 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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STA326

When ECLE is active, it issues a power device power down signal (EAPD) on clock loss

detection.

EAPD is used to actively power down a connected DDX® power device. This register has to

be written to 1 at start-up to enable the DDX® power device for normal operation.

Table 43. Auto-EAPD on clock loss enable

Bit

R/W

RST

Name

Description

ECLE

Auto EAPD on clock loss

0: disabled

1: enabled

Table 44. Software power down

Bit

R/W

RST

Name

Description

PWDN

Software power down:

0: power down mode: initiates a power-down sequence

which results in a soft mute of all channels and finally

asserts EAPD circa 260 ms later

1: normal operation

Table 45. External amplifier power down

Bit

R/W

RST

Name

Description

EAPD

External amplifier power down:

0: external power stage power down active

1: normal operation

Obsolete

Product(s)

- Obsolete

Product(s)

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