CS42418 datasheet(42/67 Pages) CIRRUS

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CS42418

5.12

Volume Control (addresses 0Fh, 10h, 11h, 12h, 13h, 14h, 15h, 16h)

5.12.1 VOLUME CONTROL (XX_VOL)

Default = 0

Function:

The Digital Volume Control registers allow independent control of the signal levels in 0.5 dB incre-

ments from 0 to -127 dB. Volume settings are decoded as shown in Table 14. The volume changes

are implemented as dictated by the Soft and Zero Cross bits (SZC[1:0]). All volume settings less than

-127 dB are equivalent to enabling the MUTE bit for the given channel.

5.13

Channel Invert (address 17h)

5.13.1 INVERT SIGNAL POLARITY (INV_XX)

Default = 0

0 - Disabled

1 - Enabled

Function:

When enabled, these bits will invert the signal polarity of their respective channels.

5.14

Mixing Control Pair 1 (Channels A1 & B1)(address 18h)

Mixing Control Pair 2 (Channels A2 & B2)(address 19h)

Mixing Control Pair 3 (Channels A3 & B3)(address 1Ah)

Mixing Control Pair 4 (Channels A4 & B4)(address 1Bh)

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xx_VOL7

xx_VOL6

xx_VOL5

xx_VOL4

xx_VOL3

xx_VOL2

xx_VOL1

xx_VOL0

Binary Code

Decimal Value

Volume Setting

00000000

0 dB

00101000

-20 dB

01010000

-40 dB

01111000

120

-60 dB

10110100

180

-90 dB

Table 14. Example Digital Volume Settings

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INV_B4

INV_A4

INV_B3

INV_A3

INV_B2

INV_A2

INV_B1

INV_A1

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Px_A=B

Reserved

Px_ATAPI4

Px_ATAPI3

Px_ATAPI2

Px_ATAPI1

Px_ATAPI0

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