Datasheet

Output Level (dB)
Input Level (dB)
T
K
M0091-03
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
TAS5713
www.ti.com SLOS637A –DECEMBER 2009–REVISED AUGUST 2010
Dynamic Range Control (DRC)
The DRC scheme has a single threshold, offset, and slope (all programmable). 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 46.
Professional-quality dynamic range compression automatically adjusts volume to flatten volume level.
• Each DRC has adjustable threshold levels
• Programmable energy, 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 46. Dynamic Range Control
T = 9.23 format, all other DRC coefficients are 3.23 format
Figure 47. DRC Structure
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