WM8960CGEFL/2RV Ver la hoja de datos (PDF) - Wolfson Microelectronics plc

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WM8960CGEFL/2RV

Stereo CODEC with 1W Stereo Class D Speaker Drivers and Headphone Drivers for Portable Audio Applications

Wolfson Microelectronics plc 

Production Data

WM8960

OUTPUT MIXERS

Left and right analogue mixers allow the DAC output and analogue bypass paths to be mixed.

Programmable attenuation and mute is available on the analogue bypass paths from LINPUT3,

RINPUT3 and from the input boost mixers as shown in Figure 13. A mono mix of left and right output

mixers is also available on OUT3.

Figure 13 Output Mixer Path

Left and right mixers are enabled by the LOMIX and ROMIX register bits. The mono mixer is enabled

by OUT3 register bit, which also enables the OUT3 driver.

REGISTER

ADDRESS

R47 (2Fh)

Power

Management

(3)

BIT

LABEL

3

LOMIX

4

ROMIX

R26 (1Ah)

1

Power

Management

(2)

OUT3

Table 21 Output Mixer Enable Control

DEFAULT

DESCRIPTION

0

Left Output Mixer Enable Control

0 = Disabled

1 = Enabled

0

Right Output Mixer Enable Control

0 = Disabled

1 = Enabled

0

Mono Output and Mono Mixer Enable

Control

0 = Mono mixer and output disabled

1 = Mono mixer and output enabled

Inputs to the mixers from the DAC and bypass paths can be individually muted. The bypass paths

have programmable attenuation as shown in Table 22. To prevent pop noise, it is recommended not

to change volume levels of these paths during playback.

w

PD, August 2013, Rev 4.2

35

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