參數(shù)資料
型號(hào): TDA7454
廠商: STMICROELECTRONICS
元件分類(lèi): 音頻/視頻放大
英文描述: 42 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25
封裝: FLEXIWATT-25
文件頁(yè)數(shù): 11/13頁(yè)
文件大小: 350K
代理商: TDA7454
01
10
Po (W)
0
0.1
1
10
THD (%)
f = 1 KHz
f = 10 KHz
RL = 2 Ohm
HI-EFF MODE
Figure 9: THD vs. Output Power
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Vpin22 (V)
0
10
20
30
40
50
60
70
80
90
100
OUT ATTN
Po= 4 W
f= 20 to 20,000 Hz
Figure 10: Muting Attenuation vs. Vpin 22
10
100
1000
10000
f (Hz)
0
0.1
1
10
THD (%)
Po = 1 W
HI-EFF MODE
RL = 4 Ohm
Figure 11: THD vs. Frequency
10
100
1000
10000
f (Hz)
20
30
40
50
60
70
80
90
100
SVR (dB)
Vripple= 1 Vrms
Rg= 0
Figure 12: Supply Voltage Rejection vs. Fre-
quency
10
100
1000
10000
f (Hz)
20
30
40
50
60
70
80
90
CROSSTALK (dB)
Po = 4 W
RL = 4 Ohm
Rg = 0
HI-EFF MODE
Figure 13: Cross-Talk vs. Frequency
0.1
1
10
Po (W)
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
Ptot (W)
0
10
20
30
40
50
60
70
n (%)
Vs= 14.4 V
RL = 4 x 4 Ohm
f = 1 KHz
HI-EFF MODE
Ptot
n
Figure 14: Power Dissipation and Efficiency vs.
Output Power
TDA7454
7/13
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