STA382BW datasheet(123/172 Pages) STMICROELECTRONICS

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STA382BW

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7.6.7

External amplifier power-down

The EAPD register directly disables/enables the internal power circuitry.

When EAPD = 0, the internal power section is placed in a low-power state (disabled). This

7.7

Volume control registers (addr 0x06 - 0x0A)

7.7.1

Mute/line output configuration register

Line output is only active when OCFG = 00. In this case LOC determines the line output

configuration. The source of the line output is always channel 1 and 2 inputs.

Table 132.

External amplifier power-down

Bit

R/W

RST

Name

Description

R/W

EAPD

0: External power stage power-down active

1: Normal operation

LOC1

LOC0

Reserved

BQBALL

C3M

C2M

C1M

MMUTE

Table 133.

Line output configuration

LOC[1:0]

Line output configuration

Line output fixed - no volume, no EQ

Line output variable - CH3 volume effects line output, no EQ

Line output variable with EQ - CH3 volume effects line output

Reserved

Bit

R/W

RST

Name

Description

R/W

BQBALL

Global biquad bypass

0: Biquad filters active

1: All the biquad filters are bypassed (pass-through)

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