TPA2016D2

IC FUNCTION CONTROL (Address: 1)

REGISTER

I2C BIT

LABEL

DEFAULT

DESCRIPTION

ADDRESS

7

SPK_EN_R

1 (enabled)

Enables right amplifier

Function Control

6

SPK_EN_L

1 (enabled)

Enables left amplifier

5

SWS

0 (enabled)

Shutdown IC when bit = 1

4

FAULT_R

0

Changes to a 1 when there is a short on the right channel. Reset by writing

a 0.

3

FAULT_L

0

Changes to a 1 when there is a short on the left channel. Reset by writing a

0

2

Thermal

0

Changes to a 1 when die temperature is above 150°C

1

UNUSED

1

0

NG_EN

1 (enabled)

Enables Noise Gate function

SPK_EN_R:

Enable bit for the right-channel amplifier. Amplifier is active when bit is high. This function is

gated by thermal and returns once the IC is below the threshold temperature.

SPK_EN_L:

Enable bit for the left-channel amplifier. Amplifier is active when bit is high. This function is

gated by thermal and returns once the IC is below the threshold temperature

SWS:

Software shutdown control. The device is in software shutdown when the bit is '1' (control, bias

and oscillator are inactive). When the bit is '0' the control, bias and oscillator are enabled.

Fault_L:

This bit indicates that an over-current event has occurred on the left channel with a '1'. This bit

is cleared by writing a '0' to it.

Fault_R:

This bit indicates that an over-current event has occurred on the right channel with a '1'. This

bit is cleared by writing a '0' to it.

Thermal:

This bit indicates a thermal shutdown that was initiated by the hardware with a '1'. This bit is

deglitched and latched, and can be cleared by writing a '0' to it.

NG_EN:

Enable bit for the Noise Gate function. This function is enabled when this bit is high. This

function can only be enabled when the Compression ratio is not 1:1.

AGC ATTACK CONTROL (Address: 2)

REGISTER

LABEL

DEFAULT

DESCRIPTION

ADDRESS

7:6

Unused

00

AGC Control

5:0

ATK_time

000101

AGC Attack time (gain ramp down)

(6.4 ms/6 dB)

Per Step

Per 6 dB

90% Range

000001

0.1067 ms

1.28 ms

5.76 ms

000010

0.2134 ms

2.56 ms

11.52 ms

000011

0.3201 ms

3.84 ms

17.19 ms

000100

0.4268 ms

5.12 ms

23.04 ms

(time increases by 0.1067 ms with every step)

111111

6.722 ms

80.66 ms

362.99 ms

ATK_time

These bits set the attack time for the AGC function. The attack time is the minimum time

between gain decreases.

Copyright © 2008, Texas Instruments Incorporated

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