Datasheet

TPA2028D1
SLOS660B –JANUARY 2010–REVISED SEPTEMBER 2012 www.ti.com
AGC RELEASE CONTROL (Address: 3)
REGISTER I
2
C
LABEL DEFAULT DESCRIPTION
ADDRESS BIT
03 (03
H
) – 7:6 Unused 00
AGC Release
5:0 REL_time 001011 AGC Release time (gain ramp down)
Control
(1.81 sec/6 dB)
Per Step Per 6 dB 90% Range
000001 0.0137 s 0.1644 s 0.7398 s
000010 0.0274 s 0.3288 s 1.4796 s
000011 0.0411 s 0.4932 s 2.2194 s
000100 0.0548 s 0.6576 s 2.9592 s
(time increases by 0.0137 s with every step)
111111 0.8631 s 10.36 s 46.6 s
REL_time These bits set the release time for the AGC function. The release time is the minimum time
between gain increases.
AGC HOLD TIME CONTROL (Address: 4)
REGISTER I
2
C
LABEL DEFAULT DESCRIPTION
ADDRESS BIT
04 (04
H
) – 7:6 Unused 00
AGC Hold
5:0 Hold_time 000000 (Disabled) AGC Hold time
Time Control
Per Step
Hold Time
000000
Disable
000001 0.0137 s
000010 0.0274 s
000011 0.0411 s
000100 0.0548 s
(time increases by 0.0137 s with
every step)
111111 0.8631 s
Hold_time These bits set the hold time for the AGC function. The hold time is the minimum time between
a gain decrease (attack) and a gain increase (release). The hold time can be deactivated.
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