WM8978 Wolfson Microelectronics Ltd., WM8978 Datasheet - Page 30

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WM8978

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.
Datasheet

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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.
PTD Rev 2.6 November 2005
Preliminary Technical Data
30