TDA7296A Datasheet, PDF (3/13 Pages) STMicroelectronics – 70V - 60W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY

TDA7296A
THERMAL DATA
Symbol
R_{th j-case}
Description
Thermal Resistance Junction-case
Value
Max
1.5
Unit
°C/W
ELECTRICAL CHARACTERISTICS (Refer to the Test Circuit V_S = ±24V, R_L = 8Ω, G_V = 30dB;
Rg = 50 Ω; Tamb = 25°C, f = 1 kHz; unless otherwise specified.
Symbol
VS
I_q
I_b
V_OS
I_OS
P_O
Parameter
Operating Supply Range
Quiescent Current
Input Bias Current
Input Offset Voltage
Input Offset Current
RMS Continuous Output Power
Music Power (RMS) (*)
∆t = 1s
d
Total Harmonic Distortion (**)
SR Slew Rate
G_V
Open Loop Voltage Gain
G_V
Closed Loop Voltage Gain
e_N
Total Input Noise
f_L, f_H
Ri
SVR
T_S
Frequency Response (-3dB)
Input Resistance
Supply Voltage Rejection
Thermal Shutdown
STAND-BY FUNCTION (Ref: -V_S or GND)
V_{ST on} Stand-by on Threshold
V_{ST off} Stand-by off Threshold
ATT_st-by Stand-by Attenuation
I_{q st-by} Quiescent Current @ Stand-by
MUTE FUNCTION (Ref: -V_S or GND)
V_Mon Mute on Threshold
V_Moff Mute off Threshold
ATT_mute Mute AttenuatIon
DC Off Clipping detector OFF.
CD output Duty Cycle
DC On Clipping detector On.
CD output Duty Cycle
Test Condition
Min.
±10
20
d = 0.5%:
V_S = ± 24V, R_L = 8Ω
27
VS = ± 21V, RL = 6Ω
27
ς_S = ± 18V, R_L = 4Ω
27
d = 10%;
R_L = 8Ω ; V_S = ±29V
R_L = 6Ω ; V_S = ±24V
R_L = 4Ω; V_S = ±22V
P_O = 5W; f = 1kHz
PO = 0.1 to 20W; f = 20Hz to 20kHz
V_S = ±18V, R_L = 4Ω:
P_O = 5W; f = 1kHz
PO = 0.1 to 20W; f = 20Hz to 20kHz
7
24
A = curve
f = 20Hz to 20kHz
P_O = 1W
100
f = 100Hz; V_ripple = 0.5Vrms
60
3.5
70
3.5
60
THD = 1%
THD = 10%
Typ.
30
Max.
±35
60
500
+10
+100
30
30
30
60
60
60
0.005
0.1
0.01
0.1
10
80
30
40
1
2
5
20Hz to 20kHz
75
145
1.5
90
1
3
1.5
80
TBD
TBD
Unit
V
mA
nA
mV
nA
W
W
W
W
W
W
%
%
%
%
V/µs
dB
dB
µV
µV
kΩ
dB
°C
V
V
dB
mA
V
V
dB
%
%
Note (*):
MUSIC POWER is the maximal power which the amplifier is capable of producing across the rated load resistance (regardless of non linearity)
1 sec after the application of a sinusoidal input signal of frequency 1KHz.
Note (**): Tested with optimized Application Board (see fig. 2)
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