CS4297 datasheet(23/46 Pages) CIRRUS

23 / 46 page

DS242F5

CS4297

CrystalClear™ SoundFusion™ Audio Codec ’97

Reset Register (Index 00h)

Any write to this register causes a Register Reset of the AC’97 Registers to occur. This forces all registers

to return to their default state. Reads from the Reset Register will return configuration information about

the part. The CS4297 supports 18-bit DAC and ADC digital audio channels and the Headphone Output (in

the form of the Alternate Line Output). The value read from this register will always be 0x0150h.

Master Volume (Index 02h)

The Master Volume control register controls the LINE_OUT signal’s volume. Each register step corre-

sponds to 1.5 dB volume adjustment, thus offering a range between 0 dB and 94.5 dB of attenuation.

Mute - The MSB of this register controls a master analog mute for the LINE_OUT_L and the

LINE_OUT_R output signals.

ML5 - ML0 - These bits control the left channel’s volume

MR5 - MR0 - These bits control the right channel’s volume.

The default value for this register is 8000h, corresponding to 0 dB attenuation and mute on.

Alternate Volume (Index 04h)

The Alternate Volume control register is used to control the ALT_LINE_OUT signal’s volume. Each reg-

ister step corresponds to 1.5 dB volume adjustment, thus offering a range between 0 dB and 94.5 dB of

attenuation.

Mute - The MSB of this register controls a master analog mute for the ALT_LINE_OUT_L and the

ALT_LINE_OUT_R output signals.

ML5 - ML0 - These bits control the left channel’s volume.

MR5 - MR0 - These bits control the right channel’s volume.

The default value for this register is 8000h, corresponding to 0 dB attenuation and mute on.

Master Mono Volume (Index 06h)

The Master Mono Volume control register controls the MONO_OUT signal’s volume. Each register step

corresponds to 1.5 dB volume adjustment, thus offering a range between 0 dB and 94.5 dB of attenuation.

The MSB of this register controls a master analog mute for the MONO_OUT. Bits MM5 - MM0 of the

The default value for this register is 8000h, corresponding to 0 dB attenuation and mute on.

D15

D14

D13

D12

D11

D10

Mute

ML5

ML4

ML3

ML2

ML1

ML0

MR5

MR4

MR3

MR2

MR1

MR0

D15

D14

D13

D12

D11

D10

Mute

ML5

ML4

ML3

ML2

ML1

ML0

MR5

MR4

MR3

MR2

MR1

MR0

D15

D14

D13

D12

D11

D10

Mute

MM5

MM4

MM3

MM2

MM1

MM0

CS4297 датащи(PDF) 23 Page - Cirrus Logic

CS4297 датащи(HTML) 23 Page - Cirrus Logic

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

датащи скачать

ссылки URL