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TDA8932B_15 Datasheet, PDF (19/48 Pages) NXP Semiconductors – Class-D audio amplifier
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NXP Semiconductors
TDA8932B
Class-D audio amplifier
Table 10. Static characteristics …continued
VP = 22 V; fosc = 320 kHz; Tamb = 25 °C; unless otherwise specified.
Symbol Parameter
Conditions
Tact(th_fold) thermal foldback activation
temperature
Oscillator reference; pin OSCIO[2]
VIH
VIL
VOH
VOL
Nslave(max)
HIGH-level input voltage
LOW-level input voltage
HIGH-level output voltage
LOW-level output voltage
maximum number of slaves
driven by one master
[1] Measured with respect to pin CGND.
[2] Measured with respect to pin VSSD(HW).
13. Dynamic characteristics
Min
Typ
Max Unit
140
-
150
°C
4.0
-
0
-
4.0
-
0
-
12
-
5
V
0.8
V
5
V
0.8
V
-
-
Table 11. Switching characteristics
VP = 22 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 = 22 V; RL = 2 × 4 Ω; fi = 1 kHz; fosc = 320 kHz; Rs < 0.1 Ω[1]; Tamb = 25 °C; unless otherwise specified.
Symbol Parameter
Conditions
Min Typ Max
THD+N total harmonic
distortion-plus-noise
Gv(cl)
|∆Gv|
αcs
SVRR
closed-loop voltage gain
voltage gain difference
channel separation
supply voltage rejection ratio
Po = 1 W
fi = 1 kHz
fi = 6 kHz
Vi = 100 mV; no load
Po = 1 W; fi = 1 kHz
Operating mode
[2]
-
-
29
-
70
[3]
0.015 0.05
0.08 0.10
30
31
0.5
1
80
-
|Zi|
Vn(o)
input impedance
output noise voltage
fi = 100 Hz
fi = 1 kHz
differential
Operating mode; Rs = 0 Ω
Mute mode
-
40
70
[4] -
[4] -
60
-
50
-
100 -
100 150
70
100
VO(mute) mute output voltage
Mute mode; Vi = 1 V (RMS) and
fi = 1 kHz
-
100 -
Unit
%
%
dB
dB
dB
dB
dB
kΩ
µV
µV
µV
TDA8932B_4
Product data sheet
Rev. 04 — 18 December 2008
© NXP B.V. 2008. All rights reserved.
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