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TDA8933T Datasheet PDF : 47 Pages
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NXP Semiconductors
TDA8933
Class-D audio amplifier
13. Dynamic characteristics
Table 11. Switching characteristics
VP = 25 V; Tamb = 25 °C; unless otherwise specified.
Symbol
Parameter
Conditions
Internal oscillator
fosc
oscillator frequency
Rosc = 39 kΩ
range
Timing PWM output: pins OUT1 and OUT2
tr
tf
tw(min)
rise time
fall time
minimum pulse width
IO = 0 A
IO = 0 A
IO = 0 A
Min
Typ
Max
Unit
-
320
-
kHz
300
-
500
kHz
-
10
-
ns
-
10
-
ns
-
80
-
ns
Table 12. SE characteristics
VP = 25 V, RL = 2 × 8 Ω, fi = 1 kHz, fosc = 320 kHz, RS < 0.1 Ω [6] and Tamb = 25 °C; unless otherwise specified.
Symbol Parameter
Conditions
Min
Typ
Max
Unit
Po(RMS)
RMS output power
continuous time output power [1]
per channel
RL = 4 Ω; VP = 17 V
THD+N = 0.5 %, fi = 1 kHz
5.9
6.5
-
W
THD+N = 0.5 %, fi = 100 Hz
-
6.5
-
W
THD+N = 10 %, fi = 1 kHz
7.5
8.3
-
W
THD+N = 10 %, fi = 100 Hz
-
8.3
-
W
RL = 8 Ω; VP = 25 V
THD+N = 0.5 %, fi = 1 kHz
7.3
8.1
-
W
THD+N = 0.5 %, fi = 100 Hz
-
8.1
-
W
THD+N = 10 %, fi = 1 kHz
9.3
10.3
-
W
THD+N = 10 %, fi = 100 Hz
-
10.3
-
W
short time output power per [2]
channel; THD+N = 10 %,
see Figure 23 for details
RL = 8 Ω; VP = 31 V
THD+N = 0.5 %
11.2
12.4
-
W
THD+N = 10 %
14.1
15.7
-
W
THD+N
Gv(cl)
|∆GV|
αcs
SVRR
|Zi|
total harmonic
distortion-plus-noise
closed-loop voltage gain
voltage gain difference
channel separation
supply voltage ripple
rejection
input impedance
Po = 1 W
fi = 1 kHz
fi = 6 kHz
Vi =100 mV; no load
Po = 1 W; fi = 1 kHz
Operating mode
fi = 100 Hz
fi = 1 kHz
differential
[3]
-
-
29
-
70
[4]
-
40
70
0.011 0.1
%
0.06
0.1
%
30
31
dB
0.5
1
dB
80
-
dB
60
-
dB
50
-
dB
100
-
kΩ
TDA8933_1
Preliminary data sheet
Rev. 01 — 15 May 2007
© NXP B.V. 2007. All rights reserved.
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