IC DGTL AUDIO PWM PROC 64-TQFP

TAS5508APAG

Manufacturer Part NumberTAS5508APAG
DescriptionIC DGTL AUDIO PWM PROC 64-TQFP
ManufacturerTexas Instruments
TypePWM Processor
TAS5508APAG datasheet
 


Specifications of TAS5508APAG

ApplicationsDVDMounting TypeSurface Mount
Package / Case64-TQFP, 64-VQFPFor Use WithTAS5342DDV6EVM - TAS5342DDV6EVMTAS5508-5142K7EVM - EVAL MODULE FOR TAS5508B/TAS5142TAS5508-5122C6EVM - EVAL MODULE FOR TAS5508B/TAS5122TAS5508-5121K8EVM - EVAL MODULE FOR TAS5508B/TAS5121
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther names296-17475
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u
u
u
u
u
u
u
u
u
u u
Coefficient
Coefficient
Coefficient
Digit 16
Digit 15
Digit 14
Integer
Digit 4
8
(Bit 2
)
Integer
Integer
Digit 5
Digit 6
x
x
x
x
x
x
x
x
x. x
Coefficient
Coefficient
Coefficient
Digit 8
Digit 7
Digit 6
u = unused or don’t care bits
Digit = hexadecimal digit
Figure 2-9. Alignment of 25.23 Coefficient in Two 32-Bit I
2.3.2.3 TAS5508A Audio Processing
The TAS5508A digital audio processing is designed so that noise produced by filter operations is
maintained below the smallest signal amplitude of interest, as shown in
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 TAS5508A carries additional precision in the form of overflow bits to permit the value of
intermediate calculations to exceed the input precision without clipping. The TAS5508A 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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Sign
Bit
Integer
Digit 1
u
u
u
u
u
S
x
x
x
x
Coefficient
Coefficient
Coefficient
Digit 13
Digit 12
Digit 11
Fraction
Fraction
Fraction
Digit 1
Digit 2
Digit 3
x
x
x
x
x
x
x
x
x
x
x
Coefficient
Coefficient
Coefficient
Digit 5
Digit 4
8-Channel Digital Audio PWM Processor
SLES119A – FEBRUARY 2004 – REVISED JULY 2009
Integer
Digit 4
11
9
(Bits 2
− 2
)
Integer
Integer
Digit 2
Digit 3
x
x
x
x
x
x
x
x
x
x
x
Coefficient
Coefficient
Digit 10
Digit 9
Fraction
Digit 6
Fraction
Fraction
0
Digit 4
Digit 5
x
x
x
x
x
x
x
x
x
x
x
Coefficient
Coefficient
Digit 3
Digit 2
Digit 1
2
C Words
Figure
2-10. The TAS5508A
Description
TAS5508A
Word 1
(Most-
Significant
Word)
Word 2
(Least-
Significant
Word)
M0009-02
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