WM8983GEFL/V Wolfson Microelectronics, WM8983GEFL/V Datasheet - Page 118
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WM8983GEFL/V
Manufacturer Part Number
WM8983GEFL/V
Description
Audio CODECs Mbl Multimedia CODEC w/ 1W Speaker Driver
Manufacturer
Wolfson Microelectronics
Datasheet
1.WM8983GEFLV.pdf
(124 pages)
Specifications of WM8983GEFL/V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
QFN-32
Minimum Operating Temperature
- 25 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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WM8983
5-BAND EQUALISER
Figure 64 EQ Band 1 Low Frequency Shelf Filter Cut-offs
Figure 66 EQ Band 2 – Peak Filter Centre Frequencies,
Figure 68 EQ Band 2 – EQ2BW=0, EQ2BW=1
w
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EQ2BW=0
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Frequency (Hz)
Frequency (Hz)
Frequency (Hz)
The WM8983 has a 5-band equaliser which can be applied to either the ADC path or the DAC path.
The plots from Figure 64 to Figure 77 show the frequency responses of each filter with a sampling
frequency of 48kHz, firstly showing the different cut-off/centre frequencies with a gain of ±12dB, and
secondly a sweep of the gain from -12dB to +12dB for the lowest cut-off/centre frequency of each
filter.
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Figure 65 EQ Band 1 Gains for Lowest Cut-off Frequency
Figure 67
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Cut-off Frequency, EQ2BW=0
EQ Band 2 – Peak Filter Gains for Lowest
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Frequency (Hz)
Frequency (Hz)
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PD, Rev 4.3, May 2010
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Production Data
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