WM8985 datasheet(62/118 Pages) WOLFSON

Part #	WM8985

Description	Multimedia CODEC With Class D Headphone and Line Out

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Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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WM8985

Pre-Production

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PP, Rev 3.4, October 2006

62

LEFT AND RIGHT OUTPUT CHANNEL MIXERS

The left and right output channel mixers are shown in Figure 25. These mixers allow the AUX inputs,

the ADC bypass and the DAC left and right channels to be combined as desired. This allows a mono

mix of the DAC channels to be performed as well as mixing in external line-in from the AUX or

speech from the input bypass path.

The AUX and bypass inputs have individual volume control from -15dB to +6dB and the DAC volume

can be adjusted in the digital domain if required. The output of these mixers is connected to both the

headphone (LOUT1 and ROUT1) and class D headphone (LOUT2 and ROUT2) and can optionally

be connected to the OUT3 and OUT4 mixers.

Figure 25 Left/Right Output Channel Mixers

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