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參數(shù)資料
| 型號(hào)： | TDA7386 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 音頻放大器 |
| 英文描述： | 4 x 40W QUAD BRIDGE CAR RADIO AMPLIFIER |
| 中文描述： | 4個(gè)功率40W的四橋汽車無線電放大器 |
| 文件頁(yè)數(shù)： | 7/9頁(yè) |
| 文件大?。?/td> | 310K |
| 代理商： | TDA7386 |
APPLICATION HINTS
(ref.to the circuit of fig. 1)
SVR
Besides its contributionto the ripple rejection, the
SVR capacitor governs the turn ON/OFF time se-
quence and, consequently,playsan essentialrole
in the pop optimization during ON/OFF tran-
sients.To conveniently serve both needs,
ITS
MINIMUM RECOMMENDED VALUE IS 10
μ
F
.
INPUT STAGE
The TDA7386’sinputs are ground-compatibleand
can stand very high inputsignals (
±
8Vpk)without
any performancesdegradation.
If the standard value for the input capacitors
(0.1
μ
F) is adopted, the low frequency cut-off will
amount to 16 Hz.
STAND-BY AND MUTING
STAND-BY and MUTING facilities are both
CMOS-COMPATIBLE. If unused, a straight con-
nectionto Vsof theirrespective pinswould be ad-
missible. Conventional/low-powertransistors can
be employed to drive muting and stand-by pins in
absence of true CMOS ports or microprocessors.
R-C cells have always to be used in order to
smooth down the transitions for preventing any
audibletransient noises.
Since a DC current of about 10 uA normallyflows
out of pin 22, the maximum allowable muting-se-
ries resistance (R
2
) is 70K
, which is sufficiently
high to permit a muting capacitor reasonably
small(about 1
μ
F).
If R
2
is higher than recommended, the involved
risk will be that the voltage at pin 22 may rise to
above the 1.5 V threshold voltage and the device
will consequently fail to turn OFF when the mute
line is broughtdown.
About the stand-by, the time constant to be as-
signed in order to obtain a virtually pop-free tran-
sitionhas to be slower than 2.5V/ms.
Figure 9:
SupplyVoltage Rejection vs.
Frequency
Figure10:
Crosstalkvs. Frequency
Figure 11:
OutputNoisevs. SourceResistance
Figure12:
PowerDissipation & Efficiency vs.
Output Power
TDA7386
7/9
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| TDA7386_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 x 45W quad bridge car radio amplifier |
| TDA7387 | 功能描述:音頻放大器 Car-Radio Amplifier 18V Op 28V DC 36W 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 |
| TDA7387EP | 制造商:STMicroelectronics 功能描述:SADA_(REG)4X42W QUAD BRIDGE CAR RADIO AMPLIFIER 制造商:STMicroelectronics 功能描述:4x41W quad BTL output car radio amplifier |
| TDA7388 | 功能描述:音頻放大器 4X41W QUAD BRDG CAR RADIO 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 |
| TDA7388A | 功能描述:音頻放大器 4 x 42W Quad Bridge Car-Radio 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 |
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