參數(shù)資料
型號(hào)： TDA7854
廠商： STMICROELECTRONICS
元件分類(lèi)： 音頻／視頻放大
英文描述： 48 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25
封裝： ROHS COMPLIANT, FLEXIWATT-25
文件頁(yè)數(shù)： 10/12頁(yè)
文件大小： 170K
代理商： TDA7854
TDA7854
Electrical specifications
3
Electrical specifications
3.1
Absolute maximum ratings
3.2
Electrical characteristics
Table 3.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
VS
Operating supply voltage
18
V
VS (DC)
DC supply voltage
28
V
VS (pk)
Peak supply voltage (for t = 50ms)
50
V
IO
Output peak current
Non repetitive (t = 100
μs)
Repetitive (duty cycle 10% at f = 10Hz)
10
9
A
Ptot
Power dissipation Tcase = 70°C
85
W
Tj
Junction temperature
150
°C
Tstg
Storage temperature
-55 to 150
°C
Table 4.
Electrical characteristics
(Refer to the test and application diagram, VS = 14.4V; RL = 4
Ω; R
g = 600Ω; f = 1KHz;
Tamb = 25°C; unless otherwise specified).
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
Iq1
Quiescent current
RL = ∞
100
150
250
mA
VOS
Output offset voltage
Play mode / Mute mode
-60
+60
mV
Gv
Voltage gain
25
26
27
dB
dGv
Channel gain unbalance
±1
dB
Po
Output power
VS = 14.4V; THD = 10%
VS = 14.4V; THD = 1%
28
22
W
VS = 14.4V; THD = 10%, 2Ω
VS = 14.4V; THD = 1%, 2Ω
48
38
W
Po max.
Max. output power(1)
VS = 15.2V; RL = 4Ω
VS = 15.2V; RL = 2Ω
47
80
W
THD
Distortion
Po = 4W
0.01
%
eNo
Output Noise
"A" Weighted
Bw = 20Hz to 20KHz
35
50
100
μV
SVR
Supply voltage rejection
f = 100Hz; Vr = 1Vrms
50
70
dB
fch
High cut-off frequency
PO = 0.5W
100
300
KHz
Ri
Input Impedance
80
100
120
K
Ω
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