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WM8961GEFL/V 데이터시트(PDF) 48 Page - Wolfson Microelectronics plc

부품명 WM8961GEFL/V
상세설명  Ultra-Low Power Stereo CODEC with 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers
PDF  116 Pages
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제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8961GEFL/V 데이터시트(HTML) 48 Page - Wolfson Microelectronics plc

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WM8961
Pre-Production
w
PP, August 2009, Rev 3.1
48
SPEAKER OUTPUT PGA VOLUME CONTROL
The signal volume on SPK_L and SPK_R can be independently adjusted under software control by
writing to SPKLVOL and SPKRVOL, as shown in Figure 21.
Figure 21 Speaker Volume PGA
A zero cross detect on the analogue output may also be enabled when changing the gain setting to
minimize audible clicks and zipper noise as the gain updates. If zero cross is enabled a timeout is also
available to update the gain if a zero cross does not occur. This function may be enabled by setting
TOEN in register R23 (17h). The timeout period is set by CLK_TO_DIV[1:0]. The volume control
PGAs are enabled using SPKL_PGA and SPKR_PGA.



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