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TDA7433 |
BASIC FUNCTION AUDIO PROCESSOR
TWO STEREO AND ONE MONO INPUTS CONTROLLED
MUTE FUNCTION (SOFTWARE AND HARDWARE)
VOLUME CONTROL IN 1dB STEP FOUR SPEAKER ATTENUATORS:
±Independentattenuation control
±Independentmute function
ALL FUNCTIONS PROGRAMMABLE VIA I2CBUS
DESCRIPTION
The TDA7433 is a volume, tone (bass and treble) balance (Left/Right) processor for quality audio applications in car radio and Hi-Fi systems.
Control is accomplished by serial bus microprocessor interface.
The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers.
BLOCK DIAGRAM
SO20
ORDERING NUMBER: TDA7433D
Thanks to the advanced BIPOLAR/CMOS Technology, the external components have been reduced.
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4.7K |
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2.7nF |
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100nF |
100nF |
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BINL |
BOUTL |
TRL |
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10 |
9 |
11 |
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16 |
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SPKR |
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LEFT FRONT |
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6 |
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ATT |
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IN1_L |
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3 |
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SPKR |
14 |
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IN2_L |
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VOL |
BASS |
TREBLE |
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MUX |
ATT |
LEFT REAR |
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4 |
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18 |
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S BUS DECODER + LATCHES |
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SCL |
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MONO IN/MUTE |
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19 |
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SDA |
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SPKR |
15 |
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2 |
MUX |
VOL |
BASS |
TREBLE |
RIGHT FRONT |
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ATT |
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IN2_R |
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5 |
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IN1_R |
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13 |
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SPKR |
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17 |
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RIGHT REAR |
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ATT |
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VS |
SUPPLY |
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20 |
1 |
8 |
7 |
12 |
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GND |
CREF |
BINR |
BOUTR |
TRR |
D95AU354A |
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100nF |
100nF |
2.7nF |
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4.7K |
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November 1999 |
1/10 |
TDA7433
ABSOLUTE MAXIMUM RATINGS
Symbol |
Parameter |
Value |
Unit |
VS |
Operating Supply Voltage |
10.2 |
V |
Tamb |
Operating Temperature Range |
-40 to 85 |
°C |
Tstg |
Storage Temperature Range |
-55 to +150 |
°C |
QUICK REFERENCE DATA
Symbol |
Parameter |
Min. |
Typ. |
Max. |
Unit |
VS |
Supply Voltage |
7 |
9 |
10.2 |
V |
VCL |
Max. Input Signal Handling |
1.3 |
1.6 |
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Vrms |
THD |
Total Harmonic Distortion (V = 1Vrms f = 1kHZ) |
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0.05 |
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% |
S/N |
Signal to Noise Ratio |
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102 |
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dB |
Sc |
Channel Separation f = 1kHz |
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100 |
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dB |
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Volume Control 1dB step |
-79 |
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+32 |
dB |
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Bass Control 2dB step |
-18 |
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+18 |
dB |
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Treble Control 2dB step |
-14 |
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+14 |
dB |
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Speaker Attenuators |
-37.5 |
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0 |
dB |
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Mute Attenuation |
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100 |
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dB |
PIN CONNECTION (Top View)
CREF |
1 |
20 |
GND |
IN2_R |
2 |
19 |
SDA |
IN2_L |
3 |
18 |
SCL |
MONO IN/MUTE |
4 |
17 |
VS |
IN1_R |
5 |
16 |
OUT_LF |
IN1_L |
6 |
15 |
OUT_RF |
BOUT_R |
7 |
14 |
OUT_LR |
BIN_R |
8 |
13 |
OUT_RR |
BOUT_L |
9 |
12 |
TRR |
BIN_L |
10 |
11 |
TRL |
D95AU355A
THERMAL DATA
Symbol |
Parameter |
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Value |
Unit |
Rth j-pins |
Thermal Resistance Junction-pins |
Max. |
150 |
°C/W |
2/10
TDA7433
APPLICATION DIAGRAM
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4.7K |
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2.7nF |
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100nF |
100nF |
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BINL |
BOUTL |
TRL |
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10 |
9 |
11 |
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16 |
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SPKR |
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100nF |
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LEFT FRONT |
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IN1_L |
6 |
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ATT |
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IN2_L |
3 |
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SPKR |
14 |
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MUX |
VOL |
BASS |
TREBLE |
ATT |
LEFT REAR |
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100nF |
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100nF |
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18 |
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4 |
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S BUS DECODER + LATCHES |
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SCL |
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MONO/ |
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19 |
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SDA |
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MUTE |
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100nF |
IN2_R |
2 |
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15 |
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SPKR |
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MUX |
VOL |
BASS |
TREBLE |
RIGHT FRONT |
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ATT |
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IN1_R |
5 |
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100nF |
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SPKR |
13 |
VS |
17 |
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RIGHT REAR |
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ATT |
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VS 9V |
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SUPPLY |
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100nF |
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20 |
1 |
8 |
7 |
12 |
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GND |
CREF |
BINR |
BOUTR |
TRR |
D95AU356A |
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10μF |
100nF |
100nF |
2.7nF |
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4.7K |
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3/10
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