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WM8961 Datasheet(PDF) 35 Page - Wolfson Microelectronics plc

Part # WM8961
Description  Ultra-Low Power Stereo CODEC with 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers
PDF  116 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8961 Datasheet(HTML) 35 Page - Wolfson Microelectronics plc

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WM8961
Pre-Production
w
PP, August 2009, Rev 3.1
35
OUTPUT SIGNAL PATH
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:
•
Digital volume control with soft mute and soft un-mute
•
Mono mix
•
De-emphasis
•
Sigma-delta modulation
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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