|
|
PDF TDA7419 Data sheet ( Hoja de datos )
| Número de pieza | TDA7419 | |
| Descripción | 3 BAND CAR AUDIO PROCESSOR | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TDA7419 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
( DataSheet : www.DataSheet4U.com )
TDA7419
3 BAND CAR AUDIO PROCESSOR
1 FEATURES
■ 4 STEREO INPUTS
■ SOFT STEP VOLUME
■ BASS, MIDDLE, TREBLE AND LOUDNESS
■ DIRECT MUTE AND SOFTMUTE
■ FOUR INDEPENDENT SPEAKER OUTPUTS
■ SUB WOOFER OUTPUT
■ SOFT STEP SPEAKER/SUBWOOFER
CONTROL
■ 7 BANDS SPECTRUM ANALYZER
■ DIGITAL CONTROL:
– I2C-BUS INTERFACE
2 DESCRIPTION
The TDA7419 is a high performance signal proces-
sor specifically designed for car radio applications.
The device includes a high performance audiopro-
Figure 2. Block Diagram
SAOUT SACLK
MUTE
Figure 1. Package
SO-28
Table 1. Order Codes
Part Number
TDA7419
TDA7419TR
Package
SO-28
SO-28 in Tape & Reel
cessor with fully integrated audio filters. The digital
control allows programming in a wide range of filter
characteristics. By the use of BICMOS-process and
linear signal processing low distortion and low noise
are obtained.
ACOUTL/ ACOUTR/ ACINL/ ACINR/
AC2OUTL AC2OUTR FILOL FILOR
Spectrum
Analyzer
DIFFL
DIFFG
DIFFR
SE1L
SE1R
SE2L
SE2R
InGain
AutoZero
INPUT
MULTIPLEXER
Loudness SoftMute
Softstep
Volume
Treble
Middle
Bass
Subwoofer
LPF
Softstep
MonoFader
HPF
Softstep
MonoFader
HPF
Softstep
MonoFader
Softstep
MonoFader
Softstep
MonoFader
Softstep
MonoFader
Mix
Mix
OUTLF
OUTRF
OUTLR
OUTRR
OUTSW/
OUTLR2
MIX/
OUTSW/
OUTRR2
SUPPLY
DIGITAL CONTROL I2C BUS
VDD GND CREF VREFOUTF
March 2005
www.DataSheet4U.com
SCL SDA
AC2INL/
SE3L
AC2INR/
SE3R
Rev. 2
1/30
www.DataSheet4U.com
1 page  
TDA7419
4 ELECTRICAL CHARACTERISTICS
Table 6. Electrical Characteristcs
VS = 8.5V; Tamb = 25°C; RL= 10kΩ ; all gains = 0dB; f = 1kHz; unless otherwise specified
Symbol
Parameter
Test Condition
SUPPLY
Vs Supply Voltage
IS Supply Current
INPUT SELECTOR
Rin Input Resistance
VCL Clipping level
All single ended inputs
All Input
QD input
SIN Input Separation
GIN MIN
GIN MAX
GSTEP
VDC
Min. Input Gain
Max. Input Gain
Step Resolution
DC Steps
Adjacent Gain Steps
GMIN to GMAX
Voffset Remaining offset with AutoZero
DIFFERENTIAL STEREO INPUTS
Rin Input Resistance
CMRR Common Mode Rejection Ratio
Differential
VCM =1 VRMS@ 1kHz
VCM =1 VRMS@ 10kHz
eNo Output Noise @ Speaker Outputs 20Hz-20kHz,flat;all stages 0dB
MIXING CONTROL
MLEVEL
GMAX
AMAX
Mixing Ratio
Max Gain
Max Attenuation
Main / Mix Source
ASTEP Step Resolution
LOUDNESS CONTROL
AMAX
ASTEP
fPeak
Max Attenuation
Step Resolution
Peak Frequency
fP1
fP2
fP3
VOLUME CONTROL
GMAX
AMAX
Max Gain
Max Attenuation
ASTEP Step Resolution
EA Attenuation Set Error
G = -20 to +20dB
G = -79 to -20dB
ET Tracking Error
VDC DC Steps
Adjacent Attenuation Steps
From 0dB to GMIN
Min. Typ. Max.
8 8.5 10
27 37 47
70 100 130
1.8 2
1.7 2
80 100
-1 0
1
13 15 17
0.5 1 1.5
-5 1
5
-20 4
20
0.5
70 100 130
46 70
46 60
12
-6/-6
13 15 17
-83 -79 -75
0.5 1 1.5
-17
0.5
360
720
2200
-15
1
400
800
2400
-13
1.5
440
880
2600
13 15 17
-83 -79 -75
0.5 1 1.5
-0.75 0 +0.75
-4 0
3
2
-3 0.1 3
-5 0.5 5
Unit
V
mA
kΩ
VRMS
VRMS
dB
dB
dB
dB
mV
mV
mV
KΩ
dB
dB
µV
dB
dB
dB
dB
dB
dB
Hz
Hz
Hz
dB
dB
dB
dB
dB
dB
mV
mV
5/30
5 Page 
TDA7419
5.3.4 Flat Mode
In flat mode the loudness stage works as a 0dB to -15dB attenuator.
5.4 SoftMute
The digitally controlled SoftMute stage allows muting/demuting the signal with a I2C-bus programmable
slope. The mute process can either be activated by the SoftMute pin or by the I2C-bus. This slope is real-
ized in a special S-shaped curve to mute slow in the critical regions (see Figure 8).
For timing purposes the Bit0 of the I2C-bus output register is set to 1 from the start of muting until the end
of demuting.
Figure 8. Sofmute Timing
1
EXT.
MUTE
+SIGNAL
REF
-SIGNAL
1
I2C BUS
OUT
D97AU634
Time
Note: Please notice that a started Mute-action is always terminated and could not be interrupted by a change of the mute -signal
5.5 SoftStep-Volume
When the volume-level is changed audible clicks could appear at the output. The root cause of those clicks
could either be a DC-Offset before the volume-stage or the sudden change of the envelope of the audi-
osignal. With the SoftStep feature both kinds of clicks could be reduced to a minimum and are no more
audible. The blend-time from one step to the next is programmable in four steps.
Figure 9. SoftStep Timing
VOUT
1dB
0.5dB
-0.5dB
SS Time
Time
-1dB
D00AU1170
Note: For steps more than 0.5dB the SoftStep mode should be deactivated because it could generate a hard 1dB step during the blend-time.
11/30
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TDA7419.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TDA7410ND | Signal processor |  STMicroelectronics |
| TDA7411 | ADVANCED CAR SIGNAL PROCESSOR | ST Microelectronics |
| TDA7412 | CARRADIO SIGNAL PROCESSOR | ST Microelectronics |
| TDA7415CB | Car radio multimedia signal processor | STMicroelectronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |