TDA7409D Datasheet TDA7409D, TDA7409DTR, E-TDA7409D | P16-P18

TDA7409

16/25

2.4 SUBADDRESS (receive mode)

1

For more information see Soft Mute-section

2

For more information see AutoZero-section

3

For more information see Test Programming block

4

If this bit is set to "1", the subaddress is automatically incremented after the transmission of a data-byte.

Therefore a transmission of more than one byte without sending the new subaddress is possible.

MSB LSB

FUNCTION

I

3

I

2

I

1

I

0

A

3

A

2

A

1

A

0

1

Zero cross / Soft Mute

1

Zero Cross available

Soft Mute available

0

1

AutoZero Remain

2

off

on

0

1

Testmode

3

off

on

0

1

Auto-Increment Mode

4

off

on

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

Input Selector / Gain

Loudness

Volume

Tre ble

Bass

Speaker attenuator LF / Bass Fc select

Speaker attenuator RF

Speaker attenuator LR

Speaker attenuator RR

Subwoofer attenuator LSW

Subwoofer attenuator RSW

SoftMute / Mixing

Others selection

Testing

Obsolete Product(s) - Obsolete Product(s)

17/25

TDA7409

2.5 DATA BYTE SPECIFICATION

2.5.1 Input Selector / Gain

2.5.2 Loudness

Note 1: The attenuation is specified at high frequencies. Around the center frequency the value is different depending on the programmed

attenuation (see Loudness-frequency-response).

MSB LSB

FUNCTION

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

1

0

1

0

1

0

1

0

1

0

1

0

1

Source Selector

Not used

Single Ended 1

Mute

Single Ended 2

Single Ended 4

Single Ended 3

Mute

Beep

0

1

0

1

X

0

1

0

1

X

0

1

0

1

0

1

0

1

X

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

Input Gain

0dB

1dB

2dB

3dB

4dB

5dB

6dB

7dB

8dB

9dB

10dB

11dB

12dB

13dB

14dB

16dB

18dB

20dB

MSB LSB

LOUDNESS

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

:

1

0

:

1

0

:

1

0

1

:

0

1

Attenuation

0dB

-1 dB

:

-14 dB

-15 dB

00

0

1

0

1

0

1

Filter / Center Frequency

off(flat) 'D6 must be = 0'

400Hz

800Hz

2.4KHz

0

1

Shape

Low Boost

Low & High Boost

0

1

SoftStep-Volume

off

on

Obsolete Product(s) - Obsolete Product(s)

TDA7409

18/25

2.5.3 Volume

Note 2: It is not recommended to use a gain more than 20dB for system performance reason. In general, the max. gain should be limited by

software to the maximum value, which is needed for the system.

2.5.4 Treble Programming

MSB LSB

ATTENUATION

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

1

0

1

0

1

0

1

0

1

0

1

X

0

1

0

1

X

0

1

0

1

X

0

1

0

1

0

1

0

1

0

1

X

Gain/Attenuation

not allow

+30.0dB

+29.0dB

:

+1.0dB

0.0dB

- 1.0dB

- 2.0dB

:

-78.0dB

-79.0dB

Mute

0 Must BE “0”

MSB LSB

BASS & TREBLE PROGRAMMING

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

Treble Steps

15dB

14dB

13dB

12dB

11dB

10dB

9dB

8dB

7dB

6dB

5dB

4dB

3dB

2dB

1dB

0dB

0

1

Mode

Cut

Boost

X

0

1

0

1

0

1

Treble Center Frequency

10KHz

12.5KHz

15KHz

17.5KHz

Obsolete Product(s) - Obsolete Product(s)

TDA7409D

TDA7409D

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