Cirrus-logic CS4341 Manual do Utilizador descarregar pdf (Página 29)

CS4341

DS298F5 29

6.4 CHANNEL A VOLUME CONTROL (ADDRESS 03H)

Same as CHANNEL B Volume Control.

6.5 CHANNEL B VOLUME CONTROL (ADDRESS 04H)

6.5.1 MUTE (MUTE) BIT 7

Default = 0

0 - Disabled

1 - Enabled

Function:

The Digital-to-Analog converter output will mute when enabled. The quiescent voltage on the output

will be retained. The muting function is affected, similar to attenuation changes, by the Soft and Zero

Cross bits in the Transition and Mixing Control (address 02h) register. The MUTEC will go active dur-

ing the mute period if the Mute function is enabled for both channels.

76543210

MUTEx VOLx6 VOLx5 VOLx4 VOLx3 VOLx2 VOLx1 VOLx0

00000000

ΣΣ

A Channel

Volume

Control

AoutA

AoutB

Left Channel

Audio Data

Right Channel

Audio Data

B Channel

Volume

Control

MUTE

Figure 25. ATAPI Block Diagram

1 2 ... 24 25 26 27 28 29 30 31 32 33 34

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Cirrus-logic CS4341 Manual do Utilizador Página 29