WM8946ECSSLASHR datasheet(52/175 Pages) WOLFSON

Part #	WM8946ECS/R

Description	Stereo Low-Power CODEC with Video Buffer

PDF	175 Pages

Scroll/Zoom	100%

Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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52 / 175 page

WM8946

Production Data

PD, July 2012, Rev 4.3

OUTPUT SIGNAL PATH

The WM8946 provides two Line Output mixers and two Speaker Output mixers. Multiple inputs to

each mixer provide a high degree of flexibility to route different signal paths to each of the four

analogue outputs.

The DAC outputs can be routed to the mixers either directly or in inverted phase. This makes it easy

to generate differential (BTL) or mono output signals.

The Auxiliary input AUX1 may be routed directly to the Speaker outputs, bypassing the Speaker

PGAs and mixers. This can be used to provide a fixed-gain signal path for a “PC Beep” or similar

application.

The output signal paths and associated control registers are illustrated in Figure 20.

Note that the speaker outputs are intended to drive a mono headset or speaker (in BTL

configuration). They are not designed to drive stereo speakers directly.

Figure 20 Output Signal Paths

WM8946ECS/R Datasheet(PDF) 52 Page - Wolfson Microelectronics plc