wm8961 Wolfson Microelectronics plc, wm8961 Datasheet - Page 35

• Manufacturer Part Number: wm8961
• Description: Ultra-low Power Stereo Codec With 1w Stereo Class D Speaker Drivers And Ground Referenced Headphone Drivers
• Manufacturer: Wolfson Microelectronics plc

OUTPUT SIGNAL PATH
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WM8961
The WM8961 DACs receive digital input data from the DACDAT pin of the AIF and via the digital side-
tone path.
The digital filter block of the DACs process the data to provide the following functions:
The analogue outputs from the DACs are fed to the analogue volume PGA control. The output from
the analogue volume control is routed to the output drivers for headphone and speaker output. This
output stage is shown in Figure 16.
Figure 16 DAC Output Stage
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Digital volume control with soft mute and soft un-mute
Mono mix
De-emphasis
Sigma-delta modulation
PP, August 2009, Rev 3.1
Pre-Production
35