CS4341

DS298PP2

21

4.11

VOLUME CONTROL

Channel A Volume Control Register (address 03h)

Channel B Volume Control Register (address 04h)

Access:

Default:

0 - 0 dB (No attenuation)

Function:

The digital volume control allows the user to attenuate the signal in 1 dB increments from 0 to -90 dB.

Volume settings are decoded as shown in Table 11. The volume changes are implemented as dic-

tated by the Soft and Zero Cross bits in the Volume and Mixing Control register. All volume settings

less than - 94 dB are equivalent to enabling the Mute bit.

765

4321

0

MUTE

VOL6

VOL5

VOL4

VOL3

VOL2

VOL1

VOL0

Binary Code

Decimal Value

Volume Setting

0000000

0

0 dB

0010100

20

-20 dB

0101000

40

-40 dB

0111100

60

-60 dB

1011010

90

-90 dB

Table 11. Digital Volume Settings