參數(shù)資料
型號: TDA7490SA
廠商: 意法半導體
英文描述: 10W +10W Stereo Class-D Amplifier
中文描述: 10W的10W的立體聲D類放大器
文件頁數(shù): 6/13頁
文件大?。?/td> 180K
代理商: TDA7490SA
2 Electrical characteristcs
TDA7490SA
6/13
Note: 1 : P
O
= measured across the load using the following inductor: SUMIDA RCH-108-330K
2 : Fsw =
with R1 in K
; Fsw in KHz R1
3 : Fsw =
with F
ext
, the frequency of the external oscillator
F
SWR
Output Switching Frequency
Range
with Internal Oscillator
(2)
140
250
KHz
with external Oscillator
(3)
100
250
KHz
MUTE & STAND-BY FUNCTIONS
V
ST-BY
Stand-by range
0
0.7
V
V
MUTE
Mute Range
1.7
2.5
V
V
PLAY
Play Range
4
5
V
A
MUTE
Mute Attenuation
60
dB
I
qST-BY
Quiescent Current @ Stand-by
1.5
2
mA
Figure 3.
distortion vs output power
Figure 4.
output Power vs Supply Voltage
(single)
Table 3.
electrical characteristcs
(Refer to the test circuit, V
CC
= ±13.5V; R
L
= 8
;
Demod. filter L = 33
μ
H, C = 220nF; f = 1KHz; R1 = 27k
; T
amb
= 25°C unless otherwise
specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
R
1
------------
23
+
F
sw
F
est
=
0.01
10
5
0.02
0.05
0.1
0.2
0.5
1
2
THD(%
100m
20
200m
500m
1
2
5
10
Pout(W
Vs = 27V
R= 8 ohm
F = 1KHz
0
14
2
4
6
8
10
12
Po(W
+14
+30
+16
+18
+20
+22
Vs (V)
+24
+26
+28
Rl= 8 ohm
f = 1KHz
THD=1%
THD=10%
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