STA529 datasheet(38/57 Pages) STMICROELECTRONICS

部件名	STA529

功能描述	FFX™ audio codec with analog and digital inputs and 2 x 1.2 W (or 2 x 100 mW HP) class-D amplifier

PDF	57 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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38 / 57 page

Registers

STA529

38/57

Doc ID 13095 Rev 3

All other registers not mentioned here are reserved and must not be used.

11.2

General registers

FFXCFG0

FFX configuration

Address:

0x00

Type:

R/W

Buffer:

Reset:

0x75

Description:

0x23

FFXST

Reserved

INVALID_

INP_FBK

MUTE_

INT_FBK

Reserved

0x28

BISTRUN

Reserved

0x29

BISTST0

Reserved

0x2A

BISTST1

Reserved

0x2B

BISTST2

Reserved

0x2D

PWMINT1

PWM_INT[15:8]

0x2E

PWMINT2

PWM_INT[7:0]

0x32

POWST

POWER

DOWN

POW_

TRISTATE

POW_

FAULT1A

POW_

FAULT1B

POW_

FAULT2A

POW_

FAULT2B

Reserved

Table 22.

Address

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

MUTE

POW_STBY

SOFT_VOL_ON

BIN_

SOFTSTART

TIM_SOFT_VOL[3:0]

7MUTE:

0: standard operation (default)

1: FFX output is zero (muted condition)

6POW_STBY:

0: FFX bridge is in power-up mode

1: FFX bridge is in standby mode (default)

5 SOFT_VOL_ON:

0: smooth transition not active

1: smooth transition when changing volume control (default)

4 BIN_SOFTSTART:

Reserved (1: default)

3:0 TIM_SOFT_VOL: volume control time step for any 0.5 dB volume change

Time is (2TIM_SOFT_VOL) * 20.83 µs

Default value: 0101. This value means 666.66 µs

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