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參數(shù)資料
| 型號(hào)： | TDA7245 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 5W Audio Amplifier with Muting and STAND-BY(帶消音和預(yù)備的立體聲放大器) |
| 中文描述： | 5W音頻放大器具有屏蔽和備用（帶消音和預(yù)備的立體聲放大器） |
| 文件頁(yè)數(shù)： | 4/11頁(yè) |
| 文件大?。?/td> | 199K |
| 代理商： | TDA7245 |
ELECTRICALCHARACTERISTCS
(Continued)
STAND-BY FUNCTION
Symbol
V
st-by
I
st-by
ATT
st-by
V
t
I
d st-by
Parameter
Test Condition
Mute SW Open (play)
Mute SW Closed (st-by)
f = 100Hz to 10kHz
Min.
Typ.
6.4
160
90
3.8
1
Max.
Unit
V
μ
A
dB
V
mA
Pin 5 DC Voltage
Pin 5 Current
Stand-by Attenuation
Stand-by Threshold (pin 5)
Stand-by Current
280
70
V
S
= 14V
3
Note (*):
MUSIC POWERCONCEPT
MUSIC POWER is (according tothe IECclauses n.268-3 of Jan 83) the maximal power which the amplifier is capable of producing across the
rated load resistance (regardless of nonlinearity) 1 sec after the applicationof a sinusoidal input signal of frequency 1KHz.
According to this definition our method of measurement comprises the followingsteps:
1) Set the voltage supply at the maximum operating value -20%
2) Apply a input signal in the form of a 1KHztone burst of 1 sec duration; the repetition period of the signal pulses is > 60 sec
3) The outputvoltage is measured 1 sec from thestart of the pulse
4) Increase the input voltage until the outputsignal show a THD = 10%
5) The music power is thenV
2out
/R1
,
where V
out
is the output voltage measured in the condition of point 4) and R1 is the rated load impedance
The target of this method isto avoidexcessive dissipation in the amplifier.
Figure 2:
Schematic Diagram
TDA7245
4/11
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7245A | 功能描述:音頻放大器 6W Audio Amplifier 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 |
| TDA7250 | 功能描述:音頻 DSP 60W Dual Audio Drvr RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TDA7253 | 功能描述:音頻放大器 8W Audio Amplifier 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 |
| TDA7253L | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:6W AMPLIFIER WITH MUTING |
| TDA7255 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:22W FRONT REAR OR BRIDGE FULLY PROTECTED CAR RADIO AMPLIFIER |
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