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PDF TDA7311 Data sheet ( Hoja de datos )
| Número de pieza | TDA7311 | |
| Descripción | SERIAL BUS CONTROLLED AUDIO PROCESSOR | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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® TDA7311
SERIAL BUS CONTROLLED AUDIO PROCESSOR
INPUT MULTIPLEXER
– TWO STEREO DIFFERENTIAL INPUTS
– TWO STEREO SINGLE ENDED INPUTS
– ONE MONO DIFFERENTIAL INPUT
INPUT AND OUTPUT FOR EXTERNAL
EQUALIZER OR NOISE REDUCTION SYS-
TEM
VOLUME CONTROL IN 1.25dB STEPS
TREBLE AND BASS CONTROL
FOUR SPEAKER ATTENUATORS:
– 4 INDEPENDENT SPEAKERS CONTROL
IN 1.25dB STEPS FOR BALANCE AND
FADER FACILITIES
– INDEPENDENT MUTE FUNCTION
ALL FUNCTIONS PROGRAMMABLE VIA SPI
COMPATIBLE SERIAL BUS
DESCRIPTION
The TDA7311 is a volume, tone (bass and treble)
and fader (front/rear) processor for high quality
audio applications in car radio and Hi-Fi systems.
DIP40
ORDERING NUMBER: TDA7311
Control is accomplished by serial bus microproc-
essor interface.
The AC signal setting is obtained by resistor net-
works and switches combined with operational
amplifiers.
Thanks to the used BIPOLAR/CMOS technology,
low distortion, low noise and DC stepping are ob-
tained.
PINS CONNECTION (Top view)
July 1999
1/11
1 page  
TDA7311
ELECTRICAL CHARACTERISTICS (continued)
Symbol
AUDIO OUTPUTS
Parameter
Test Condition
Min. Typ. Max. Unit
GENERAL
Output Voltage
Output Load Resistance
Output Load Capacitance
Output resistance
DC Voltage Level
d = 0.3%
2.3 2.8
Vrms
2 KΩ
10 nF
25 75 Ω
4.6 5.0 5.4
V
eNO Output Noise
S/N Signal to Noise Ratio
d Distortion
Sc Channel Separation left/right
Total Tracking error
Output Attenuation
BUS INPUTS
BW = 20-20KHz, flat
output muted
all gains = 0dB Single Ended
all gains = 0dB Diff. Inputs
4
5 15
10 30
all gains = 0dB; VO = 1Vrms
Single Ended
Differential Inputs
106
100
VIN = 1Vrms
0.01
70 95
AV = 0 to -20dB
AV = -20 to -60 dB
AV = 0dB to 11.25dB
Mute Condition (3)
0
0
0
80 90
1
2
1
µV
µV
µV
dB
dB
%
dB
dB
dB
dB
dB
VIL Input Low Voltage
VIH Input High Voltage
1V
3V
Notes:
(1) Bass and Treble response see attached diagram (fig.17). The center frequency and quality of the resonance behaviour can be choosen by
the external circuitry. A standard first order bass response can be realized by a standard feedback network
(2) The selected input is grounded thru the 2.2µF capacitor.
(3) Condition obtained programming: mute on speaker attenuators (1X111111) followed by selection of SECMUTE (1XXXX111).
5/11
5 Page 
TDA7311
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 1999 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco -
Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A.
http://www.st.com
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet TDA7311.PDF ] | |
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