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TPA2016D2 데이터시트(PDF) 28 Page - Texas Instruments

부품명 TPA2016D2
상세설명  TPA2016D2 2.8-W/Ch Stereo Class-D Audio Amplifier With Dynamic Range Compression and Automatic Gain Control
PDF  51 Pages
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TPA2016D2 데이터시트(HTML) 28 Page - Texas Instruments

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TPA2016D2
SLOS524E – JUNE 2008 – REVISED MAY 2016
www.ti.com
Product Folder Links: TPA2016D2
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Copyright © 2008–2016, Texas Instruments Incorporated
Table 10. AGC Control (Address: 6)
REGISTER
ADDRESS
I2C BIT
LABEL
DEFAULT
DESCRIPTION
06 (06H) –
AGC Control
7
Output Limiter
Disable
0 (enable)
Disables the output limiter function. Can only be disabled when the AGC compression
ratio is 1:1 (off)
6:5
NoiseGate
Threshold
01 (4 mVrms)
Select the threshold of the noise gate
Threshold
00
1 mVrms
01
4 mVrms
10
10 mVrms
11
20 mVrms
4:0
Output Limiter
Level
11010 (6.5 dBV)
Selects the output limiter level
Output Power (Wrms)
Peak Output Voltage
(Vp)
dBV
00000
0.03
0.67
–6.5
00001
0.03
0.71
–6
00010
0.04
0.75
–5.5
(Limiter level increases by 0.5 dB with every step)
11101
0.79
3.55
8
11110
0.88
3.76
8.5
11111
0.99
3.99
9
Output Limiter
Disable
This bit disables the output limiter function when set to 1. Can only be disabled when
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.
Table 11. AGC Control (Address: 7)
REGISTER
ADDRESS
I2C BIT
LABEL
DEFAULT
DESCRIPTION
07 (07H) –
AGC Control
7:4
Max Gain
1100 (30 dB)
Selects the maximum gain the AGC can achieve
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
Ratio
10 (4:1)
Selects the compression ratio of the AGC
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 30 dB



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