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TAS5508 Datasheet(PDF) 27 Page - Texas Instruments

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Part # TAS5508
Description  8-Channel Digital Audio PWM Processor
PDF  105 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TAS5508 Datasheet(HTML) 27 Page - Texas Instruments

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u
Coefficient
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u = unused or don’t care bits
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M0009-02
2.3.2.3 TAS5508 Audio Processing
TAS5508
8-Channel Digital Audio PWM Processor
www.ti.com
SLES091D – FEBRUARY 2004 – REVISED JULY 2009
Figure 2-9. Alignment of 25.23 Coefficient in Two 32-Bit I2C Words
The TAS5508 digital audio processing is designed so that noise produced by filter operations is
maintained below the smallest signal amplitude of interest, as shown in Figure 2-10. The TAS5508
achieves this low noise level by increasing the precision of the signal representation substantially above
the number of bits that are absolutely necessary to represent the input signal.
Similarly, the TAS5508 carries additional precision in the form of overflow bits to permit the value of
intermediate calculations to exceed the input precision without clipping. The TAS5508 advanced digital
audio processor achieves both of these important performance capabilities by using a high-performance
digital audio processing architecture with a 48-bit data path, 28-bit filter coefficients, and a 76-bit
accumulator.
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