WM8976GEFL/V Wolfson Microelectronics, WM8976GEFL/V Datasheet - Page 62
WM8976GEFL/V
Manufacturer Part Number
WM8976GEFL/V
Description
Audio CODECs Mono ADC Stereo DAC with Spkr
Manufacturer
Wolfson Microelectronics
Datasheet
1.WM8976GEFLV.pdf
(111 pages)
Specifications of WM8976GEFL/V
Mounting Style
SMD/SMT
Package / Case
QFN-32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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OUTPUT PHASING
Figure 33 Output Signal Path Phasing
The relative phases of the analogue outputs will depend upon the following factors:
1. DACPOLL and DACPOLR invert bits: Setting these bits to 1 will invert the DAC output.
2. Mixer configuration: The polarity of the signal will depend upon the route through the mixer path.
For example, DACL can be directly input to the OUT3 mixer, giving a 180° phase shift at the OUT3
mixer output. However, if DACL is input to the OUT3 mixer via the left mixer, an additional phase shift
will be introduced, giving 0° phase shift at the OUT3 mixer output.
3. Output boost set-up: When 1.5x boost is enabled on an output, no phase shift occurs. When 1.5x
boost is not enabled, a 180° phase shift occurs.
Figure 27 shows where these phase inversions can occur in the output signal path.
PD Rev 4.4 July 2009
Production Data
62
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