SC7312

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV:1.2

2004.08.03

Http: www.silan.com.cn

Page 9 of 13

DETAILED DESCRIPTION OF DATA BYTES

1. Volume

MSB

LSB

Function

0

0

B2

B1

B0

A2

A1

A0

Volume 1.25dB steps

0

0

0

0

0

0

1

-1.25

0

1

0

-2.5

0

1

1

-3.75

1

0

0

-5

1

0

1

-6.25

1

1

0

-7.5

1

1

1

-8.75

0

0

B2

B1

B0

A2

A1

A0

Volume 10dB steps

0

0

0

0

0

0

1

-10

0

1

0

-20

0

1

1

-30

1

0

0

-40

1

0

1

-50

1

1

0

-60

1

1

1

-70

For example, a volume of –45dB is given by: 00100100

2. speaker attenuators

MSB

LSB

Function

1

0

0

B1

B0

A2

A1

A0

Speaker ATT LF

1

0

1

B1

B0

A2

A1

A0

Speaker ATT RF

1

1

0

B1

B0

A2

A1

A0

Speaker ATT LR

1

1

1

B1

B0

A2

A1

A0

Speaker ATT RR

0

0

0

0

0

0

1

-1.25

0

1

0

-2.5

0

1

1

-3.75

1

0

0

-5

1

0

1

-6.25

1

1

0

-7.5

1

1

1

-8.75

0

0

0

0

1

-10

1

0

-20

1

1

-30

1

1

1

1

1

MUTE

For example, attenuation of 25dB on speaker RF is given by: 10110100