Cirrus-logic CS42L73 Manual do Utilizador descarregar pdf (Página 102)

102 DS882F1

CS42L73

6.23 Speakerphone Out [A] Digital Volume Control (Address 1Ch)

6.23.1 Speakerphone Out [A] Digital Volume Control

Normally, this control sets the volume of the signal out of the Speakerphone DAC. If the Limiter is en-

gaged, it sets the maximum volume. Speakerphone digital mutes (SPKDMUTE) override this control.

6.24 Ear Speaker/Speakerphone Line Output (ESL) [B]

Digital Volume Control (Address 1Dh)

6.24.1 Ear Speaker/Speakerphone Line Output (ESL) [B] Digital Volume Control

Normally, this control sets the volume of the signal out of the Ear Speaker/Speakerphone Line Output

DAC. If the Limiter is engaged, it sets the maximum volume. Ear Speaker/Speakerphone Line Output dig-

ital mutes (ESLDMUTE) override this register control.

76543210

SPKDVOL7 SPKDVOL6 SPKDVOL5 SPKDVOL4 SPKDVOL3 SPKDVOL2 SPKDVOL1 SPKDVOL0

SPKDVOL[7:0] Speakerphone Volume

0001 1000 +12.0 dB

··· ···

0000 0000 0 dB

1111 1111 -0.5 dB

1111 1110 -1.0 dB

··· ···

0011 0100 -102 dB

··· ···

0001 1001 -102 dB

Step Size: 0.5 dB

76543210

ESLDVOL7 ESLDVOL6 ESLDVOL5 ESLDVOL4 ESLDVOL3 ESLDVOL2 ESLDVOL1 ESLDVOL0

ESLDVOL[7:0] Ear Speaker/Speakerphone Line Output Volume

0001 1000 +12.0 dB

··· ···

0000 0000 0 dB

1111 1111 -0.5 dB

1111 1110 -1.0 dB

··· ···

0011 0100 -102 dB

··· ···

0001 1001 -102 dB

Step Size: 0.5 dB

1 2 ... 97 98 99 100 101 102 103 104 105 106 107 ... 138 139

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Cirrus-logic CS42L73 Manual do Utilizador Página 102