NXP Semiconductors TDA8932B - Manual (Page 32)

TDA8932B_4 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 04 — 18 December 2008 32 of 48
NXP Semiconductors
TDA8932B
Class-D audio amplifier
a. R
L
= 2
×
4
Ω
; f
i
= 1 kHz; 2 layer SO32 application
board (55 mm
×
45 mm) without heat sink
b. R
L
= 2
×
8
Ω
; f
i
= 1 kHz; 2 layer SO32 application
board (55 mm
×
45 mm) without heat sink
(1) V
P
= 22 V
(2) V
P
= 26 V
(3) V
P
= 29 V
(1) V
P
= 30 V
(2) V
P
= 34 V
Fig 23. Output power per channel as a function of time
t (s)
0 600 480 240 360 120
001aaf887
16
8
24
32
0
P o
(W/channel)
(2)
(1)
(3)
t (s)
0 600 480 240 360 120
001aaf888
16
8
24
32
0
P o
(W/channel)
(2)
(1)
V
i
= 100 mV (RMS value); f
i
= 1 kHz; V
ENGAGE
> 3 V V
i
= 100 mV (RMS value); f
i
= 1 kHz; V
POWERUP
> 2 V
Fig 24. Output voltage as a function of voltage on pin
POWERUP
Fig 25. Output voltage as a function of voltage on pin
ENGAGE
001aaf890
V
POWERUP
(V)
0 3 2 1 0.5 2.5 1.5
2
1
3
4
V
o
(V)
0
operating
sleep
001aaf891
V
ENGAGE
(V)
0 3 2 1 0.5 2.5 1.5
2
1
3
4
V
o
(V)
0
operating
mute