STA529 datasheet(39/57 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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STA529

Registers

Doc ID 13095 Rev 3

39/57

FFXCFG1

Configuration

Address:

0x01

Type:

R/W

Buffer:

Reset:

0xF8

Description:

MVOL

Master volume control

Address:

0x02

Type:

R/W

Buffer:

Reset:

0x00

Description:

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

L1_R2

MUTE_ON_

INVALID

PWM_MODE[1:0]

PWM_SHIFT[1:0]

RES

7 L1_R2: channel mapping:

0: right channel is mapped to output channel 1 and left channel is mapped to output

channel 2

1: left channel is mapped to output channel 1 and right channel is mapped to output

channel 2 (default)

6 MUTE_ON_ INVALID: mutes PWM outputs if invalid digital data is received:

0: outputs are not muted

1: outputs are muted (default)

5:4 PWM_MODE[1:0]:

00: binary (output B is opposite of output A)

01: binary headphones (output B is 50% duty cycle)

10: reserved, do not use

11: phase shift (default)

3:2 PWM_SHIFT[1:0]:

10: default

PWM period-shift between channels 1 and 2

Value is N * 90o

Default is 180o

1:0 Reserved (00: default)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

SET_VOL_MASTER[7:0]

7:0 SET_VOL_MASTER[7:0]: master volume control:

From 0 dB to -127.5 dB in 0.5-dB steps

Default value (0x00) corresponds to 0 dB

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