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PDF TDA7313N Data sheet ( Hoja de datos )

Número de pieza TDA7313N
Descripción DIGITAL CONTROLLED STEREO AUDIO PROCESSOR WITH LOUDNESS
Fabricantes ST Microelectronics 
Logotipo ST Microelectronics Logotipo



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® TDA7313N
DIGITAL CONTROLLED STEREO AUDIO PROCESSOR
WITH LOUDNESS
INPUT MULTIPLEXER:
- 3 STEREO INPUTS
- SELECTABLE INPUT GAIN FOR OPTIMAL
ADAPTION TO DIFFERENT SOURCES
LOUDNESS FUNCTION
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 SE-
RIAL I2C BUS
DESCRIPTION
The TDA7313N is a volume, tone (bass and treble)
balance (Left/Right) and fader (front/rear) processor
for quality audio applications in car radio and Hi-Fi
systems.
Selectable input gain and external loudness function
DIP28
SO28
ORDERING NUMBERS:
TDA7313N
TDA7313ND
are provided. Control is accomplished by serial
I2C busmicroprocessor interface.
The AC signal setting is obtained by resistor networks
andswitches combined with operationalamplifiers.
Thanks to the used BIPOLAR/CMOS Tecnology,
Low Distortion, Low Noise and Low DC stepping are
obtained.
PIN CONNECTION (Top view)
November 1999
1/14

1 page




TDA7313N pdf
TDA7313N
ELECTRICAL CHARACTERISTICS (continued)
Symbol
AUDIO OUTPUTS
Parameter
Test Condition
Min. Typ. Max. Unit
VOCL
RL
CL
ROUT
VOUT
GENERAL
Clipping Level
Output Load Resistance
Output Load Capacitance
Output resistance
DC Voltage Level
d = 0.3%
2 2.5
Vrms
2 K
10 nF
30 75 120
4.2 4.5 4.8
V
eNO Output Noise
S/N Signal to Noise Ratio
d Distortion
Sc Channel Separation left/right
Total Tracking error
BUS INPUTS
BW = 20-20KHz, flat
output muted
all gains = 0dB
A curve all gains = 0dB
all gains = 0dB; VO = 1Vrms
AV = 0, VIN = 1Vrms
AV = -20dB VIN = 1Vrms
VIN = 0.3Vrms
AV = 0 to -20dB
-20 to -60 dB
2.5 µV
5 15 µV
3 µV
106 dB
0.01
0.09
0.04
0.1
0.3
%
%
%
80 103
dB
0 1 dB
0 2 dB
VIL Input Low Voltage
VIH Input High Voltage
IIN Input Current
VO Output Voltage SDA
Acknowledge
IO = 1.6mA
1V
3V
-5 +5 µA
0.4 V
Notes:
(1) Bass and Treble response see attached diagram (fig.16). 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.
Figure 1: Loudness vs. Volume Attenuation
Figure 2: Loudnessvs. Frequency (CLOUD =
100nF) vs. Volume Attenuation
5/14

5 Page





TDA7313N arduino
TDA7313N
Audio Switch
MSB
LSB FUNCTION
0 1 0 G1 G0 S2 S1 S0 Audio Switch
0 0 Stereo 1
0 1 Stereo 2
1 0 Stereo 3
1 1 Stereo 4 (*)
0 LOUDNESS ON
1 LOUDNESS OFF
00
01
10
11
+11.25dB
+7.5dB
+3.75dB
0dB
For example to select the stereo 2 input with a gain of +7.5dB LOUDNESS ON the 8bit string is:
01001001
(*) Stereo 4 is connected internally, but not available on pins.
Bass and Treble
0 1 1 0 C3 C2
0 1 1 1 C3 C2
00
00
00
00
01
01
01
01
11
11
11
11
10
10
10
10
C3 = Sign
For example Bass at -10dB is obtained by the following 8 bit string:
01100010
C1
C1
0
0
1
1
0
0
1
1
1
1
0
0
1
1
0
0
C0 Bass
C0 Treble
0 -14
1 -12
0 -10
1 -8
0 -6
1 -4
0 -2
10
10
02
14
06
18
0 10
1 12
0 14
11/14

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