WM8978 Wolfson Microelectronics Ltd., WM8978 Datasheet - Page 31

• Manufacturer Part Number: WM8978
• Description: The WM8978 is a low power, high quality stereo codec designed for portable applications such as Digital still camera or Digital Camcorde
• Manufacturer: Wolfson Microelectronics Ltd.

Preliminary Technical Data
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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.
PTD Rev 2.6 November 2005
WM8978
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