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TAS5731MPHPR データシート(PDF) 33 Page - Texas Instruments

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部品番号 TAS5731MPHPR
部品情報  Digital Audio Power Amplifier
PDF  81 Pages
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

TAS5731MPHPR データシート(HTML) 33 Page - Texas Instruments

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background image
S
Z
–1
Alpha Filter Structure
w
a
B0265-04
a w
,
T
a
w
a,
a
d
d
/
,
a
w
DRC1
DRC2
0x3C
0x3B
0x40
0x43
0x3E
0x3F
Input Level (dB)
T
M0091-04
1:1 TransferFunction
Implemented TransferFunction
TAS5731M
www.ti.com
SLOS838C – JULY 2013 – REVISED AUGUST 2015
Feature Description (continued)
9.3.11 Dynamic Range Control (DRC)
The DRC scheme has two DRC blocks. There is one ganged DRC for the high-band left/right channels and one
DRC for the low-band left/right channels.
The DRC input/output diagram is shown in Figure 55.
Professional-quality dynamic range compression automatically adjusts volume to flatten volume level.
• Each DRC has adjustable threshold levels.
• Programmable attack and decay time constants
• Transparent compression: compressors can attack fast enough to avoid apparent clipping before engaging,
and decay times can be set slow enough to avoid pumping.
Figure 55. Dynamic Range Control
T = 9.23 format, all other DRC coefficients are 3.23 format
Figure 56. DRC Structure
Copyright © 2013–2015, Texas Instruments Incorporated
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Product Folder Links: TAS5731M



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