CS4299 datasheet(22/52 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

4.5

PC_BEEP Volume Register (Index 0Ah)

Mute

PC_BEEP Mute. Setting this bit mutes the PC_BEEP input signal.

PV[3:0]

PC_BEEP Volume Control. The PV[3:0] bits are used to control the gain levels of the PC_BEEP

input source to the Input Mixer. Each step corresponds to 3 dB gain adjustment, with

0000 = 0 dB. The total range is 0 dB to -45 dB attenuation.

Default

0000h. This value corresponds to 0 dB attenuation and Mute ‘clear’.

This register has no effect on the PC_BEEP volume during RESET#.

4.6

Phone Volume Register (Index 0Ch)

Mute

Phone Mute. Setting this bit mutes the Phone input signal.

GN[4:0]

Phone Volume Control. The GN[4:0] bits are used to control the gain levels of the Phone 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 on page 24 for further details.

Default

8008h. This value corresponds to 0 dB gain and Mute ‘set’.

D15

D14

D13

D12

D11

D10

Mute

PV3

PV2

PV1

PV0

D15

D14

D13

D12

D11

D10

Mute

GN4

GN3

GN2

GN1

GN0

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