WM9714LGEFLSLASHV datasheet(90/94 Pages) WOLFSON

Part #	WM9714LGEFL/V

Description	AC 97 Audio CODEC

PDF	94 Pages

Scroll/Zoom	100%

Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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90 / 94 page

WM9714L

Pre-Production

PP Rev 3.0 June 2006

TYPICAL OUTPUT CONFIGURATIONS

The WM9714L has three outputs capable of driving loads down to 16

Ω (headphone / line drivers) –

HPL, HPR and MONO - and four outputs capable of driving loads down to 8

Ω (loudspeaker / line

drivers) – SPKL, SPKR, OUT3 and OUT4. The combination of output drivers, mixers and mixer

inverters means that many output configurations can be supported. Below are some examples of

typical output configurations for smartphone applications.

STEREO SPEAKER

Figure 35 shows a typical output configuration for stereo speakers with headphones, ear speaker and

hands-free operation. The table shows suggested mixer outputs to select for each output PGA for a

given operating scenario. (Note the inverted mixer outputs can be achieved using the mixer output

inverters INV1 and INV2).

Figure 35 Stereo Speaker Output Configuration

WM9714LGEFL/V Datasheet(PDF) 90 Page - Wolfson Microelectronics plc