WM8978_06 Wolfson Microelectronics Ltd., WM8978_06 Datasheet - Page 31

• Manufacturer Part Number: WM8978_06
• Description: Stereo Codec With Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

Pre-Production
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Figure 14 Volume Update Using Zero Cross Detection
Figure 15 Volume Update after Timeout
If there is a long period where no zero-crossing occurs, a timeout circuit in the WM8978 will
automatically update the volume. The volume updates will occur between one and two timeout
periods, depending on when the INPPGAUPDATE bit is set as shown in Figure 15.
PP Rev 3.0 May 2006
WM8978
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