WM8991 datasheet(39/174 Pages) WOLFSON

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WM8991 데이터시트(PDF) 39 Page - Wolfson Microelectronics plc

부품명	WM8991

상세설명	Mobile Multimedia CODEC with Dual-Mode Class AB/D Speaker Driver

PDF	174 Pages

Scroll/Zoom	100%

제조업체	WOLFSON [Wolfson Microelectronics plc]

홈페이지	http://www.wolfsonmicro.com

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39 / 174 page

Pre-Production

WM8991

PP, May 2008, Rev 3.1

INPUT SIGNAL PATH

The WM8991 has eight highly flexible analogue input channels, configurable in many combinations

of the following:

1. Up to four pseudo-differential or single-ended microphone inputs

2. Up to eight mono line inputs or 4 stereo line inputs

3. Mono input from external voice CODEC

4. Two fully balanced differential inputs

These inputs may be mixed together or independently routed to different combinations of output

drivers. An internal record path is provided at the input mixers to allow DAC output to be mixed with

the input signal path (e.g. for karaoke or voice call recording).

The WM8991 input signal paths and control registers are illustrated in Figure 16.

Figure 16 Control Registers for Input Signal Path

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