TDA749313TR Datasheet, PDF (10/30 Pages) STMicroelectronics – 3-watt 3-watt dual BTL class-D audio amplifier

Electrical specifications
TDA7493
Table 5. Electrical characteristics (continued)
Symbol
Parameter
Condition
Min Typ Max Unit
Pd
Dissipated power
Po = 2.8 W + 2.8 W,
THD = 10%
-
1.1 -
W
η
THD
Efficiency
Total harmonic
distortion
Po = 2.8 W + 2.8 W,
R_L = 4 Ω
R_L = 4 Ω, Po = 0.5 W
-
83 -
%
-
0.05 -
%
Tj
Thermal shut-down
junction temperature
-
-
150 -
°C
GAIN1 = low -
6.0 -
GAIN0 = low
GAIN1 = high -
12.0 -
G_V
Closed loop gain
dB
GAIN1 = low -
15.6 -
GAIN0 = high
GAIN1 = high -
18.0 -
GV
Gain matching
-
-1
-
1
dB
CT
Crosstalk
f = 1 kHz
-
60 -
dB
A curve, Gv = 18 dB
-
50 -
µV
eN
Total output noise
f = 22 Hz to 22 kHz,
Gv = 18 dB
-
60 -
µV
Ri
Input resistance
Differential Input
-
60 -
kΩ
SVRR
V_OVP
Supply voltage
rejection ratio
f_r = 100 Hz, Vr = 0.5 V,
C_SVR = 1 µF
Overvoltage protection
threshold
-
-
55 -
dB
-
5.8 -
V
t_r, t_f
R_DSON
Rising and falling time -
Power transistor on
resistance
High side
Low side
-
10 -
ns
-
0.44 -
Ω
-
0.36 -
f_SW
f_SWR
Switching frequency
Output switching
frequency range
Internal oscillator
With internal oscillator ⁽¹⁾
With external oscillator ⁽²⁾
-
315 -
kHz
250 -
400 kHz
250 -
400 kHz
I_qSTANDBY
Quiescent current in
standby
-
-
1
-
µA
Function
mode
Standby and play
STANDBY = high
STANDBY = low
Play
Standby
-
High
Digital inputs Digital input thresholds
Low
1. f_SW = 10⁶ / (R_OSC * 64 + 840)
f_SYNC = 2 * f_SW with R1 = 39 kΩ and f_SW in kHz
2. f_SW = f_SYNC / 2 with the frequency of external oscillator
0.7 *
V_CC
-
-
-
-
V
0.3 *
V_CC
V
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Doc ID 14570 Rev 6