WM8983GEFL/RV Wolfson Microelectronics, WM8983GEFL/RV Datasheet - Page 56

• Manufacturer Part Number: WM8983GEFL/RV
• Description: Audio CODECs Mbl Multimedia CODEC w/ 1W Speaker Driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8983GEFL/RV

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C

WM8983
Figure 29 Noise Gate Operation
OUTPUT SIGNAL PATH
Figure 30 DAC Digital Filter Path
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The WM8983 output signal paths consist of digital application filters, up-sampling filters, stereo Hi-Fi
DACs, analogue mixers, stereo headphone and stereo line/mono/midrail output drivers. The digital
filters and DAC are enabled by register bits DACENL And DACENR. The mixers and output drivers
can be separately enabled by individual control bits (see Analogue Outputs). Thus it is possible to
utilise the analogue mixing and amplification provided by the WM8983, irrespective of whether the
DACs are running or not.
The WM8983 DACs receive digital input data on the DACDAT pin. The digital filter block processes
the data to provide the following functions:
High performance sigma-delta audio DAC converts the digital data into an analogue signal.
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Digital volume control
Graphic equaliser
A digital peak limiter.
Sigma-Delta Modulation
PD Rev 4.0 November 2006
Production Data
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