WM8510GEDSSLASHRV datasheet(78/81 Pages) WOLFSON

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WM8510

Production Data

PD Rev 4.1 December 2006

HIGHPASS FILTER

The WM8510 has a selectable digital highpass filter in the ADC filter path. This filter has two modes,

audio and applications. In audio mode the filter is a 1

st order IIR with a cut-off of around 3.7Hz. In

applications mode the filter is a 2

nd order high pass filter with a selectable cut-off frequency.

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Frequency (Hz)

Figure 46 ADC Highpass Filter Response, HPFAPP=0

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Frequency (Hz)

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Figure 47 ADC Highpass Filter Responses (48kHz),

HPFAPP=1, all cut-off settings shown.

Figure 48 ADC Highpass Filter Responses (24kHz),

HPFAPP=1, all cut-off settings shown.

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Frequency (Hz)

Figure 49 ADC Highpass Filter Responses (12kHz),

HPFAPP=1, all cut-off settings shown.

WM8510GEDS/RV 데이터시트(PDF) 78 Page - Wolfson Microelectronics plc

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