WM8978_06 Wolfson Microelectronics Ltd., WM8978_06 Datasheet - Page 30

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

WM8978
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Figure 12 Simultaneous Left and Right Volume Updates
Figure 13 Click Noise During Volume Update
If the volume is adjusted while the signal is a non-zero value, an audible click can occur as shown in
Figure 13.
In order to prevent this click noise, a zero cross function is provided. When enabled, this will cause
the PGA volume to update only when a zero crossing occurs, minimising click noise as shown in
Figure 14.
PP Rev 3.0 May 2006
Pre-Production
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