參數(shù)資料
型號(hào): TDA7241BH
廠商: STMICROELECTRONICS
元件分類(lèi): 音頻/視頻放大
英文描述: 26 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM7
封裝: HEPTAWATT-7
文件頁(yè)數(shù): 3/7頁(yè)
文件大小: 1119K
代理商: TDA7241BH
ELECTRICAL CHARACTERISTICS (Refer to the circuit of Fig. 1; VS = 14.4V; Rth (heatsink) = 4
°C/W,
Tamb = 25°C, unless otherwise specified
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VS
Supply Range
18
V
Id
Total Quiescent Current
RL = 4
80
mA
VOS
Output Offset Voltage
100
mV
PO
Output Power
.
RL = 2
f = 1KHz d = 10%
RL = 4
.
RL = 8
18
26
20
12
W
d
Distortion
RL = 4
f = 1KHz
PO = 50mW to 12W
0.1
0.5
%
RL = 8
f = 1KHz
PO = 50mW to 6W
0.05
%
GV
Voltage Gain
f = 1KHz
31
32
33
dB
SVR
Supply Voltage Rejection
f =100Hz Rg = 10K
40
50
dB
En
Total Input Noise
B = Curve A
Rg = 10K
2
V
B = 22Hz to 22KHz RS = 10K
310
mV
η
Efficiency
RL = 4
f = 1KHz
PO = 20W
65
%
Isb
Stand-by Current
100
A
Ri
Input Resistance
f = 1KHz
70
K
Vi
Input Sensitivity
f = 1KHz
PO = 2W
RL = 4
70
mV
fL
Low Frequency Roll Off (-3dB)
PO = 15W
RL = 4
30
Hz
fH
High Frequency Roll Off (-3dB)
PO = 15W
RL = 4
25
KHz
AS
Stand-by Attenuation
VO = 2Vrms
70
90
dB
VTH(pin.2)
Stand-by Threshold
1
V
Tsd
Thermal Shutdown Junction Temp.
150
°C
(*) B = Curve
(**) B = 22Hz to 22KHz
Figure 2: P.C. Board and Component Layout of the Circuit of Fig. 1 (1:1 scale).
TDA7241B
3/7
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