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WM8976 데이터시트(PDF) 9 Page - Wolfson Microelectronics plc

부품명 WM8976
상세설명  Low Power CODEC With Speaker Driver
PDF  83 Pages
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제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8976 데이터시트(HTML) 9 Page - Wolfson Microelectronics plc

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Preliminary Technical Data
WM8976
w
PTD Rev 2.0 February 2005
9
7.
Dynamic range (dB) – DR is a measure of the difference between the highest and lowest portions of a signal.
Normally a THD+N measurement at 60dB below full scale. The measured signal is then corrected by adding the 60dB
to it. (e.g. THD+N @ -60dB= -32dB, DR= 92dB).
8.
THD+N (dB) – THD+N is a ratio, of the rms values, of (Noise + Distortion)/Signal.
9.
Channel Separation (dB) – Also known as Cross-Talk. This is a measure of the amount one channel is isolated from
the other. Normally measured by sending a full scale signal down one channel and measuring the other.
10. The maximum output voltage can be limited by the speaker power supply.
If OUT3BOOST, OUT4BOOST or
SPKBOOST is set then SPKVDD should be 1.5xAVDD to prevent clipping taking place in the output stage (when
PGA gains are set to 0dB).



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