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WM8962B Datasheet(PDF) 112 Page - Wolfson Microelectronics plc

Part # WM8962B
Description  Ultra-Low Power Stereo CODEC with Audio Enhancement DSP, 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers
PDF  295 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8962B Datasheet(HTML) 112 Page - Wolfson Microelectronics plc

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WM8962
112
Rev 4.3
DAC DE-EMPHASIS
Digital de-emphasis can be applied to the DAC playback data (e.g. when the data comes from a CD
with pre-emphasis used in the recording). De-emphasis filtering is available for sample rates of 48kHz,
44.1kHz and 32kHz.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R5 (05h)
ADC & DAC
Control 1
2:1
DAC_DEEMP
[1:0]
00
De-Emphasis Control
00 = No de-emphasis
01 = De-emphasis for 32kHz sample
rate
10 = De-emphasis for 44.1kHz
sample rate
11 = De-emphasis for 48kHz sample
rate
Table 66 DAC De-Emphasis Control
DAC OVERSAMPLING RATIO (OSR)
The DAC oversampling rate is programmable to allow power consumption versus audio performance
trade-offs. The default oversampling rate is low for reduced power consumption; using the higher OSR
setting improves the DAC signal-to-noise performance.
See the “Reference Voltages and Bias Control” section for details of the supported bias control
settings for the output signal paths.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R6 (06h)
ADC & DAC
Control 2
0
DAC_HP
0
DAC Oversampling Ratio
0 = Low Power (typically 64 x fs)
1 = High Performance (typically 128 x
fs)
Table 67 DAC Oversampling Control



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