PCM2903C

SBFS038A – JUNE 2012 – REVISED SEPTEMBER 2015

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The built-in digital volume controller can be manipulated by an audio class specific request from 0 dB to –64 dB

until the volume level has reached the requested value. Each channel can be set for different values. The master

volume control is not supported. A request to the master volume is stalled and ignored. The built-in digital mute

controller can be manipulated by audio class-specific request. A master mute control request is acceptable. A

request to an individual channel is stalled and ignored.

9.5.2.2 Interface Number 1

Interface number 1 is the audio streaming data-out interface. Interface number 1 has the five alternative settings

described in Table 4. Alternative setting number 0 is the zero-bandwidth setting.

Table 4. Interface Number 1 Alternative Settings

ALTERNATIVE

DATA

TRANSFER

SAMPLING RATE

SETTING

FORMAT

MODE

(kHz)

00

Zero bandwidth

01

16-bit

Stereo

Twos complement (PCM)

Adaptive

32, 44.1, 48

02

16-bit

Mono

Twos complement (PCM)

Adaptive

32, 44.1, 48

03

8-bit

Stereo

Twos complement (PCM)

Adaptive

32, 44.1, 48

04

8-bit

Mono

Twos complement (PCM)

Adaptive

32, 44.1, 48

9.5.2.3 Interface Number 2

Interface number 2 is the audio streaming data-in interface. Interface number 2 has the 19 alternative settings

described in Table 5. Alternative setting number 0 is the zero-bandwidth setting. All other alternative settings are

operational settings.

Table 5. Interface Number 2 Alternative Settings

ALTERNATIVE

DATA

TRANSFER

SAMPLING RATE

SETTING

FORMAT

MODE

(kHz)

00

Zero bandwidth

01

16-bit

Stereo

Twos complement (PCM)

Asynchronous

48

02

16-bit

Mono

Twos complement (PCM)

Asynchronous

48

03

16-bit

Stereo

Twos complement (PCM)

Asynchronous

44.1

04

16-bit

Mono

Twos complement (PCM)

Asynchronous

44.1

05

16-bit

Stereo

Twos complement (PCM)

Asynchronous

32

06

16-bit

Mono

Twos complement (PCM)

Asynchronous

32

07

16-bit

Stereo

Twos complement (PCM)

Asynchronous

22.05

08

16-bit

Mono

Twos complement (PCM)

Asynchronous

22.05

09

16-bit

Stereo

Twos complement (PCM)

Asynchronous

16

0A

16-bit

Mono

Twos complement (PCM)

Asynchronous

16

0B

8-bit

Stereo

Twos complement (PCM)

Asynchronous

16

0C

8-bit

Mono

Twos complement (PCM)

Asynchronous

16

0D

8-bit

Stereo

Twos complement (PCM)

Asynchronous

8

0E

8-bit

Mono

Twos complement (PCM)

Asynchronous

8

0F

16-bit

Stereo

Twos complement (PCM)

Synchronous

11.025

10

16-bit

Mono

Twos complement (PCM)

Synchronous

11.025

11

8-bit

Stereo

Twos complement (PCM)

Synchronous

11.025

12

8-bit

Mono

Twos complement (PCM)

Synchronous

11.025

20

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