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WM8962B bảng dữ liệu(PDF) 69 Page - Wolfson Microelectronics plc

tên linh kiện WM8962B
Giải thích chi tiết về linh kiện  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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nhà sản xuất  WOLFSON [Wolfson Microelectronics plc]
Trang chủ  http://www.wolfsonmicro.com
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WM8962B bảng dữ liệu(HTML) 69 Page - Wolfson Microelectronics plc

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WM8962
Rev 4.3
69
ADC OVERSAMPLING RATIO (OSR)
The ADC 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 ADC signal-to-noise performance.
See the “Reference Voltages and Bias Control” section for details of the supported bias control
settings for the input signal paths.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R23 (17h)
Additional
control (1)
5
ADC_HP
0
ADC Oversampling Ratio
0 = Low Power (typically 64 x fs)
1 = High Performance (typically
128 x fs)
Table 28 ADC Oversampling Ratio
ADC MONOMIX
A mono mix of the Left and Right channels can be created by setting the ADC_MONOMIX register bit,
as described in Table 29. When ADC_MONOMIX is set, 3D Surround must be disabled
(THREED_ENA = 0, as described Table 34) for the ADC_MONOMIX setting to be effective. An
attenuation of -6dB is applied to the sum of the Left and Right channels in order to avoid clipping.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R268 (010Ch)
THREED1
6
ADC_MONOMIX
0
ADC Monomix enable
0 = Disabled
1 = Enabled
Note that THREED_ENA (see Table
34) must be disabled for
ADC_MONOMIX to be effective.
Table 29 ADC Monomix



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