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TDA7496L Datasheet(PDF) 3 Page - STMicroelectronics

Part # TDA7496L
Description  2W2W AMPLIFIER WITH DC VOLUME CONTROL
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7496L Datasheet(HTML) 3 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
eN
Total Output Noise
f = 20Hz to 22KHz
Play, max volume
500
800
µV
f = 20Hz to 22KHz
Play, max attenuation
100
250
µV
f = 20Hz to 22KHz
Mute
60
150
µV
SR
Slew Rate
5
8
V/
µs
Ri
Input Resistance
22.5
30
K
RVar Out
Variable Output Resistance
30
100
Rload Var Out
Variable Output Load
2
K
SVR
Supply Voltage Rejection
f = 1kHz; max volume
CSVR = 470
µF; VRIP = 1Vrms
35
39
dB
f = 1kHz; max attenuation
CSVR = 470
µF; VRIP =1Vrms
55
65
dB
TM
Thermal Muting
150
°C
Ts
Thermal Shut-down
160
°C
MUTE STAND-BY & INPUT SELECTION FUNCTIONS
VST ON
Stand-by ON Threshold
3.5
V
VST OFF
Stand-by OFF Threshold
1.5
V
VM ON
Mute ON Threshold
3.5
V
VM OFF
Mute OFF Threshold
1.5
V
IqST-BY
Quiescent Current @ Stand-by
0.6
1
mA
AMUTE
Mute Attenuation
50
65
dB
IstbyBIAS
Stand-by bias current
Stand by on VST-BY = 5V
VMUTE = 5V
80
µA
µA
Play or Mute
-20
-5
µA
ImuteBIAS
Mute bias current
Mute
1
5
µA
Play
0.2
2
µA
APPLICATION SUGGESTIONS
The recommended values of the external components are those shown on the application circuit of fig-
ure 1A. Different values can be used, the following table can help the designer.
COMPONENT
SUGGESTION
VALUE
PURPOSE
LARGER THAN
SUGGESTION
SMALLER THAN
SUGGESTION
R1
300K
Volume control
circuit
Larger volume regulation
time
Smaller volume regulation
time
R2
10K
Mute time constant
Larger mute on/off time
Smaller mute on/off time
P1
50K
Volume control
circuit
C1
1000
µF
Supply voltage
bypass
Danger of oscillation
C2
470nF
Input DC decoupling
Lower low frequency cutoff
Higher low frequency cutoff
C3
470nF
Input DC decoupling
Lower low frequency cutoff
Higher low frequency cutoff
C4
470
µF
Ripple rejection
Better SVR
Worse SVR
C5
100nF
Volume control time
costant
Larger volume regulation
time
Smaller volume regulation
time
C6
1000
µF
Output DC
decoupling
Lower low frequency cutoff
Higher low frequency cutoff
C7
1
µF
Mute time costant
Larger mute on/off time
Smaller mute on/off time
C8
1000
µF
Output DC
decoupling
Lower low frequency cutoff
Higher low frequency cutoff
C9
100nF
Supply voltage
bypass
Danger of oscillation
TDA7496L
3/10


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