wm8976gefl-v Wolfson Microelectronics plc, wm8976gefl-v Datasheet - Page 34

• Manufacturer Part Number: wm8976gefl-v
• Description: Stereo Codec With Speaker Driver
• Manufacturer: Wolfson Microelectronics plc

WM8976
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Table 18 ALC Control Registers
NORMAL MODE
Figure 18 ALC Normal Mode Operation
WHEN THE ALC IS DISABLED, THE INPUT PGA REMAINS AT THE LAST CONTROLLED VALUE
OF THE ALC. AN INPUT GAIN UPDATE MUST BE MADE BY WRITING TO THE INPPGAVOLL/R
REGISTER BITS.
In normal mode, the ALC will attempt to maintain a constant signal level by increasing or decreasing
the gain of the PGA. The following diagram shows an example of this.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
… (time doubles with every step)
1010
or
higher
23.2ms
DESCRIPTION
PD Rev 4.4 July 2009
186ms
Production Data
1.34s
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