TDA7418TR

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P29

I

2

C bus specification TDA7418

22/29

5.3 Data byte specification

Table 7. Input selector /gain (0)

MSB LSB

Function

D7 D6 D5 D4 D3 D2 D1 D0

0

0

0

0

1

0

0

1

1

X

0

1

0

1

X

Source Selector

PD/SE4

SE1

SE2

SE3

mute

0

0

:

1

1

0

0

:

1

1

0

0

:

1

1

0

1

:

0

1

Input Gain

0dB

1dB

:

14dB

15dB

0

1

Diffin Mode

Single Ended Stereo

Differential Stereo

Table 8. Loudness (1)

MSB LSB

Function

D7 D6 D5 D4 D3 D2 D1 D0

0

0

:

1

1

0

0

:

1

1

0

0

:

1

1

0

1

:

0

1

Attenuation

0dB

-1dB

:

-14dB

-15dB

00

0

1

1

0

1

0

1

Filter/Center Frequency

Off (Flat) D6 must be = 0

400Hz

800Hz

2400Hz

0

1

Shape

Low Boost

Low & HighBoost

0

1

Loudness Soft Step

on

off

TDA7418 I

2

C bus specification

23/29

Table 9. Volume / speaker attenuation (2,7,8,9,10,11)

MSB LSB

Function

D7 D6 D5 D4 D3 D2 D1 D0

0

0

:

0

0

0

0

:

0

0

:

1

1

1

0

0

:

0

0

0

0

:

0

1

:

0

0

1

0

0

:

0

0

1

1

:

1

0

:

1

1

x

1

1

:

0

0

0

0

:

1

0

:

1

1

x

1

1

:

0

0

0

0

:

1

0

:

1

1

x

1

1

:

0

0

0

0

:

1

0

:

1

1

x

1

0

:

1

0

0

1

:

1

0

:

0

1

x

Gain/Attenuation

+15dB

+14dB

:

+1dB

0dB

0dB

-1dB

:

-15dB

-16dB

:

-78dB

-79dB

Mute

0

1

Volume Soft Step

on

off

Table 10. Treble filter (3)

MSB LSB

Function

D7 D6 D5 D4 D3 D2 D1 D0

0

0

:

0

0

1

1

:

1

1

0

0

:

1

1

1

1

:

0

0

0

0

:

1

1

1

1

:

0

0

0

0

:

1

1

1

1

:

0

0

0

1

:

0

1

1

0

:

1

0

Gain/Attenuation

-15dB

-14dB

:

-1dB

0dB

0dB

+1dB

:

+14dB

+15dB

0

0

1

1

0

1

0

1

Treble Center Frequency

10.0kHz

12.5kHz

15.0kHz

17.5kHz

1 Must be “1”

I

2

C bus specification TDA7418

24/29

Table 11. Middle filter (4)

MSB LSB

Function

D7 D6 D5 D4 D3 D2 D1 D0

0

0

:

0

0

1

1

:

1

1

0

0

:

1

1

1

1

:

0

0

0

0

:

1

1

1

1

:

0

0

0

0

:

1

1

1

1

:

0

0

0

1

:

0

1

1

0

:

1

0

Gain/Attenuation

-15dB

-14dB

:

-1dB

0dB

0dB

+1dB

:

+14dB

+15dB

0

0

1

1

0

1

0

1

Middle Q Factor

0.5

0.75

1

1.25

0

1

Middle Soft Step

on

off

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P29

TDA7418TR

Mfr. #:

Manufacturer:

STMicroelectronics

Description:

Audio DSPs 3 Band Car Audio Processor 8-10V

Lifecycle:

New from this manufacturer.

Delivery:

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Payment:

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