Datasheet

Output Level (dB)
Input Level (dB)
T
M0091-04
1:1 TransferFunction
Implemented TransferFunction
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
TAS5727
www.ti.com SLOS670 –NOVEMBER 2010
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 30.
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 30. Dynamic Range Control
T = 9.23 format, all other DRC coefficients are 3.23 format
Figure 31. DRC Structure
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