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參數(shù)資料
| 型號(hào)： | TDA7481 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 18 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| 封裝： | MULTIWATT-15 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大小： | 143K |
| 代理商： | TDA7481 |
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, VCC =
±18V; RL = 8; RS = 50;
RF = 12K
; Demod.. filter L = 60H, C = 470nF; f = 1KHz; Tamb = 25°‘C unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VS
Supply Range
±10
±25
V
Iq
Total Quiescent Current
RL =
∞, no LC filter
35
55
mA
VOS
Output Offset Voltage
PLAY condition
–70
-30
10
mV
PO
Output Power
THD = 10%
THD = 1%
15
10
18
13
W
PO
Output Power
VCC =
±15V; RL = 4
THD = 10%
THD = 1% (*)
18
13
W
PD
Maximum Dissipated Power
VCC =
±18V; RL = 8; Rf = 12K
PΟ = 18W THD 10%
3.5
W
η
Efficiency
≡
PO
+ PD
≡
PO
PI
(**)
VCC =
±18V; RL = 8; Rf = 12K
PΟ = 18W THD 10%
85
%
THD
Total Harmonic Distortion
RL = 8
; PO = 1W
0.1
%
Imax
Overcurrent Protection
Threshold
RL = 0
3.5
5
A
Tj
Thermal Shut-down Junction
Temperature
150
°C
GV
Closed Loop Gain
29
30
31
dB
eN
Total Input Noise
A Curve
f = 20Hz to 22KHz
7
12
V
VCCTOT MAX
Maximum Total VCC Protection
50
V
Ri
Input Resistance
20
30
k
SVR
Supply Voltage Rejection
f = 100Hz; Vr = 0.5
46
60
dB
Tr, Tf
Rising and Falling Time
50
ns
RDSON
Power Transistor on Resistance
0.4
FSW-OP
Switching Frequency Operative
Range
100
200
KHz
FSW
Switching Frequency
100
120
140
KHz
BF
Zero Signal Frequency
Constant (***)
1.4x10
9
Hz
RF
Frequency Controller Resistor
Range (****)
712
14
K
MUTE & STAND-BY FUNCTIONS
VST-BY
Stand-by range
0.8
V
VMUTE
Mute Range
1.8
2.5
V
VPLAY
Play Range (1)
4
V
AMUTE
Mute Attenuation
60
80
dB
IqST-BY
Quiescent Current @ Stand-by
3
5
mA
*: The output LC filter must be changed to: L = 30
H; C = 1F
**: PO = measured across the load using the following inductor:
COIL 58120 MPPA2 (magnetics)
TURNS: 28
1mm
***: The zero-signal switching frequency can be obtained using the following expression: FSW = BF/RF
****: The maximum value of RF is related to the maximum possible value for the voltage drop on RF itself
(1) for V10 >5.2V, an input impedance of 10K
is to be considered
TDA7481
3/6
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7481BOARD | 功能描述:音頻 IC 開發(fā)工具 Eval Brd for TDA7481 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| TDA7482 | 功能描述:音頻放大器 25W Mono Class D Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7482_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:25W MONO CLASS-D AMPLIFIER |
| TDA7482BOARD | 功能描述:音頻 IC 開發(fā)工具 Eval Brd for TDA7482 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| TDA7490 | 功能描述:音頻放大器 25W Stereo "D" Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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