TPA2016D2 datasheet(28/51 Pages) TI2

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TPA2016D2

SLOS524E – JUNE 2008 – REVISED MAY 2016

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Table 10. AGC Control (Address: 6)

ADDRESS

I2C BIT

LABEL

DEFAULT

DESCRIPTION

06 (06H) –

AGC Control

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

1 mVrms

4 mVrms

10 mVrms

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

11110

0.88

3.76

8.5

11111

0.99

3.99

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)

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

1:0

Compression

Ratio

10 (4:1)

Selects the compression ratio of the AGC

Ratio

1:1 (off)

2:1

4:1

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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