TDA7449 datasheet(1/21 Pages) STMICROELECTRONICS

部件名	TDA7449

功能描述	Digital tone control audio processor

PDF	21 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 21 page

This is information on a product in full production.

September 2014

DocID006317 Rev 5

1/21

TDA7449

Digital tone control audio processor

Datasheet

- production data

Features

 Input multiplexer

– Two stereo inputs

– Selectable input gain for optimal adaptation

to different sources

 One stereo output

 Treble and bass control in 2.0 db steps

 Volume control in 1.0 db steps

 Two speaker attenuators:

– Two independent speaker controls in

1.0 db steps to facilitate balance

– Independent mute function

 All functions are programmable via serial bus

Description

The TDA7449 is a volume tone (bass and treble)

balance (left/right) processor for quality audio

applications in TV systems. Selectable input gain

is provided. A serial bus controls all functions.

The AC signal setting is obtained by resistor

networks and switches combined with operational

amplifiers.

Bipolar/CMOS technology used allows obtaining

low distortion, low noise and DC stepping.

Table 1. Device summary

Figure 1. Block diagram

SO20

Order code

Package

Packing

TDA7449D13TR

SO20

Tape and reel

0/30dB

2dB STEP

MUXOUTL

VOLUME

TREBLE

TREBLE(L)

BASS

MUXOUTR

TREBLE(R)

SPKR ATT

LEFT

LOUT

SCL

SDA

DIG_GND

ROUT

D98AU847A

I

2CBUS DECODER + LATCHES

100K

G

L-IN1

L-IN2

100K

R-IN1

R-IN2

G

INPUT MULTIPLEXER

+ GAIN

BOUT(L)

SPKR ATT

RIGHT

BIN(R) BOUT(R)

SUPPLY

CREF

AGND

VS

BIN(L)

5

8

9

7

6

19

20

18

4

2

3

11

17

12

13

1

10

16

15

14

RB

VREF

www.st.com

Obsolete

Product(s)

- Obsolete

Product(s)

类似零件编号 - TDA7449

制造商	部件名	数据表	功能描述
STMicroelectronics	TDA7449	128Kb / 17P	TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR Apr-1999
	TDA7449	200Kb / 19P	TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR Jun-2004
	TDA7449D	200Kb / 19P	TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR Jun-2004
	TDA7449L	90Kb / 13P	LOW COST DIGITALLY CONTROLLED AUDIO PROCESSOR Apr-1999
	TDA7449L	104Kb / 14P	LOW COST DIGITALLY CONTROLLED AUDIO PROCESSOR Jun-2004

More results

类似说明 - TDA7449

制造商	部件名	数据表	功能描述
STMicroelectronics	TDA7440D	212Kb / 17P	TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR REV. 3
	TDA7442	154Kb / 17P	TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR REV. 2
	TDA7449	128Kb / 17P	TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR Apr-1999
	TDA7463D	151Kb / 11P	LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR May-2002
	TDA7463AD	90Kb / 11P	LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR Jun-2004
	TDA7863D	112Kb / 12P	LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR Jun-2004
	TDA7463D	116Kb / 12P	LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR Jun-2004
	TDA7449	200Kb / 19P	TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR Jun-2004
	TDA7440	741Kb / 17P	TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR 30-Apr-2010
	TDA7463	175Kb / 12P	LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR 26-Apr-2010

More results

TDA7449 数据表(PDF) 1 Page - STMicroelectronics

TDA7449 数据表(HTML) 1 Page - STMicroelectronics

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