Cirrus-logic CS43L21 Instrukcja Użytkownika Pobierz pdf (Strona 49)

DS723F1 49

CS43L21

Tone Control Enable (TC_EN)

Default = 0

0 - Disabled

1 - Enabled

Function:

The Bass and Treble tone control features are active when this bit is enabled.

6.11 Tone Control (Address 15h)

Note: The DATA_SEL[1:0] bits in reg09h must be set to ‘01’b to enable function control in this register.

Treble Gain Level (TREB[3:0])

Default: 1000 dB (No Treble Gain)

Function:

The level of the shelving treble gain filter is set by Treble Gain Level. The level can be adjusted in 1.5 dB

increments from +12.0 to -10.5 dB.

Bass Gain Level (BASS[3:0])

Default: 1000 dB (No Bass Gain)

Function:

The level of the shelving bass gain filter is set by Bass Gain Level. The level can be adjusted in 1.5 dB in-

crements from +10.5 to -10.5 dB.

6.12 AOUTx Volume Control:

76543210

TREB3 TREB2 TREB1 TREB0 BASS3 BASS2 BASS1 BASS0

Binary Code Gain Setting

0000 +12.0 dB

··· ···

0111 +1.5 dB

1000 0 dB

1001 -1.5 dB

··· ···

1111 -10.5 dB

Binary Code Gain Setting

0000 +12.0 dB

··· ···

0111 +1.5 dB

1000 0 dB

1001 -1.5 dB

··· ···

1111 -10.5 dB

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Cirrus-logic CS43L21 Instrukcja Użytkownika Strona 49