CS4299 datasheet(24/52 Pages) CIRRUS

номер детали	CS4299

подробное описание детали	CrystalClear SoundFusion Audio Codec 97

PDF	52 Pages

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производитель	CIRRUS [Cirrus Logic]

домашняя страница	http://www.cirrus.com

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CS4299

4.8

Stereo Analog Mixer Input Gain Registers (Index 10h - 18h)

Mute

Stereo Input Mute. Setting this bit mutes the respective input signal, both right and left inputs.

GL[4:0]

Left Volume Control. The GL[4:0] bits are used to control the gain level of the left analog input

source to the Input Mixer. Each step corresponds to 1.5 dB gain adjustment, with 01000 = 0 dB.

The total range is +12 dB to -34.5 dB gain. See Table 4 for further details.

GR[4:0]

Right Volume Control. The GR[4:0] bits are used to control the gain level of the right analog in-

put source to the Input Mixer. Each step corresponds to 1.5 dB gain adjustment, with 01000 =

0 dB. The total range is +12 dB to -34.5 dB gain. See Table 4 for further details.

Default

8808h. This value corresponds to 0 dB gain and Mute ‘set’.

The Stereo Analog Mixer Input Gain Registers are listed in Table 5.

D15

D14

D13

D12

D11

D10

Mute

GL4

GL3

GL2

GL1

GL0

GR4

GR3

GR2

GR1

GR0

Gx[4:0]

Gain Level

00000

+12.0 dB

00001

+10.5 dB

……

00111

+1.5 dB

01000

0.0 dB

01001

-1.5 dB

……

11111

-34.5 dB

Table 4. Analog Mixer Input Gain Values

Function

10h

Line In Volume

12h

CD Volume

14h

Video Volume

16h

Aux Volume

18h

PCM Out Volume

Table 5. Stereo Volume Register Index

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