Datasheet

TPA2016D2
SLOS524D – JUNE 2008 – REVISED AUGUST 2009 ........................................................................................................................................................ www.ti.com
AGC CONTROL (Address: 6)
REGISTER I
2
C
LABEL DEFAULT DESCRIPTION
ADDRESS BIT
06 (06
H
) – 7 Output Limiter 0 (enable) Disables the output limiter function. Can only be disabled when the AGC
AGC Control Disable compression ratio is 1:1 (off)
6:5 NoiseGate 01 (4mV
rms
) Select the threshold of the noise gate
Threshold
Threshold
00 1 mV
rms
01 4 mV
rms
10 10 mV
rms
11 20 mV
rms
4:0 Output Limiter 11010 (6.5dBV) Selects the output limiter level
Level
Output Power Peak Output
dBV
(Wrms) Voltage (Vp)
00000 0.03 0.67 – 6.5
00001 0.03 0.71 – 6
00010 0.04 0.75 – 5.5
(Limiter level increases by 0.5dB with every step)
11101 0.79 3.55 8
11110 0.88 3.76 8.5
11111 0.99 3.99 9
Output Limiter This bit disables the output limiter function when set to 1. Can only be disabled when
Disable the AGC compression ratio is 1:1
NoiseGate Threshold These bits set the threshold level of the noise gate. NoiseGate Threshold is only
functional when the compression ratio is not 1:1
Output Limiter Level These bits select the output limiter level. Output Power numbers are for 8 Ω load.
AGC CONTROL (Address: 7)
REGISTER I
2
C
LABEL DEFAULT DESCRIPTION
ADDRESS BIT
07 (07
H
) – 7:4 Max Gain 1100 (30 dB) Selects the maximum gain the AGC can achieve
AGC Control
Gain
0000 18 dB
0001 19 dB
0010 20 dB
(gain increases by 1 dB with every step)
1100 30 dB
3:2 Unused 00
1:0 Compression 10 (4:1) Selects the compression ratio of the AGC
Ratio
Ratio
00 1:1 (off)
01 2:1
10 4:1
11 8:1
Compression Ratio These bits select the compression ratio. Output Limiter is enabled by default when the
compression ratio is not 1:1.
Max Gain These bits select the maximum gain of the amplifier. In order to maximize the use of the
AGC, set the Max Gain to 30dB
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