WM8985GEFLSLASHR datasheet(54/118 Pages) WOLFSON

Il numero della parte	WM8985GEFL/R

Spiegazioni elettronici	Multimedia CODEC With Class D Headphone and Line Out

PDF	118 Pages

Scroll/Zoom	100%

Produttore elettronici	WOLFSON [Wolfson Microelectronics plc]

Homepage	http://www.wolfsonmicro.com

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54 / 118 page

WM8985

Pre-Production

PP, Rev 3.4, October 2006

Figure 22 Noise Gate Operation

OUTPUT SIGNAL PATH

The WM8985 output signal paths consist of digital application filters, up-sampling filters, stereo Hi-Fi

DACs, analogue mixers, stereo headphone and stereo line/mono/midrail output drivers. The digital

filters and DAC are enabled by register bits DACENL and DACENR. The mixers and output drivers

can be separately enabled by individual control bits (see Analogue Outputs). Thus it is possible to

utilise the analogue mixing and amplification provided by the WM8985, irrespective of whether the

DACs are running or not.

The WM8985 DACs receive digital input data on the DACDAT pin. The digital filter block processes

the data to provide the following functions:

Digital volume control

Graphic equaliser

A digital peak limiter

Sigma-Delta Modulation

High performance sigma-delta audio DAC converts the digital data into an analogue signal.

WM8985GEFL/R Scheda tecnica(PDF) 54 Page - Wolfson Microelectronics plc