參數(shù)資料
型號: TDA8924
廠商: NXP Semiconductors N.V.
英文描述: 2 x 120 W class-D power amplifier
中文描述: 2 × 120瓦D類功率放大器
文件頁數(shù): 14/35頁
文件大?。?/td> 722K
代理商: TDA8924
2003 Jul 28
14
Philips Semiconductors
Objective specification
2
×
120 W class-D power amplifier
TDA8924
15 DYNAMIC AC CHARACTERISTICS (MONO BTL APPLICATION)
V
P
=
±
24 V; R
L
= 4
; f
i
= 1 kHz; f
osc
= 310 kHz; R
sL
< 0.1
(note 1); T
amb
= 25
°
C; measured in Fig.9; unless
otherwise specified.
Notes
1.
2.
3.
R
sL
= series resistance of inductor of low-pass LC filter in the application.
Output power is measured indirectly; based on R
DSon
measurement.
Total harmonic distortion is measured in a bandwidth of 22 Hz to 22 kHz. When distortion is measured using a low
order low-pass filter a significant higher value will be found, due to the switching frequency outside the audio band.
Maximum limit is guaranteed but may not be 100 % tested.
Output power measured across the loudspeaker load.
V
ripple
= V
ripple(max)
= 2 V (p-p); f
i
= 100 Hz; R
s
= 0
.
V
ripple
= V
ripple(max)
= 2 V (p-p); f
i
= 1 kHz; R
s
= 0
.
B = 22 Hz to 22 kHz; R
s
= 0
; maximum limit is guaranteed but may not be 100 % tested.
B = 22 Hz to 22 kHz; R
s
= 10 k
.
B = 22 Hz to 22 kHz; independent of R
s
.
10. V
i
= V
i(max)
= 1 V (RMS); f
i
= 1 kHz; maximum limit is guaranteed but may not be 100 % tested.
4.
5.
6.
7.
8.
9.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
P
o
output power
R
L
= 3
; V
P
=
±
20 V; THD = 0.5 %; note 2
R
L
= 3
; V
P
=
±
20 V; THD = 10 %; note 2
R
L
= 4
; V
P
=
±
20 V; THD = 0.5 %; note 2
R
L
= 4
; V
P
=
±
20 V; THD = 10 %; note 2
R
L
= 4
; V
P
=
±
24 V; THD = 0.5 %; note 2
R
L
= 4
; V
P
=
±
24 V; THD = 10 %; note 2
P
o
= 1 W; note 3
f
i
= 100 Hz
f
i
= 1 kHz
f
i
= 10 kHz
160
205
135
175
200
240
W
W
W
W
W
W
THD
total harmonic distortion
36
22
0.015
0.015
0.015
34
83
49
44
49
80
34
280
300
280
75
0.05
560
500
%
%
%
dB
%
dB
dB
dB
dB
k
μ
V
μ
V
μ
V
μ
V
dB
G
v(cl)
η
SVRR
closed loop voltage gain
efficiency
supply voltage ripple
rejection
P
o
= 240 W; note 4
operating; f
i
= 100 Hz; note 5
operating; f
i
= 1 kHz; note 6
mute; f
i
= 100 Hz; note 5
standby; f
i
= 100 Hz; note 5
Z
i
V
n(o)
input impedance
noise output voltage
operating; R
s
= 0
; note 7
operating; R
s
= 10 k
; note 8
mute; note 9
note 10
V
i(CM)
= 1 V (RMS)
V
o(mute)
CMRR
output signal in mute
common mode rejection
ratio
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