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參數(shù)資料
| 型號： | TDA7350A |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 11 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM11 |
| 文件頁數(shù)： | 23/23頁 |
| 文件大小： | 494K |
| 代理商： | TDA7350A |
9/23
TDA7350A
Figure 24. Power Dissipation & Efficiency vs.
Output Power (Stereo)
Figure 25. Power Dissipation & Efficiency vs.
Output Power (Bridge)
Figure 26. Power Dissipation & Efficiency vs.
Output Power (Bridge))
3
Amplifier Organization
The TDA7350A has been developed taking care of
the key concepts of the modern power audio am-
plifier for car radio such as: space and costs sav-
ing due to the minimized external count, excellent
electrical performances, flexibility in use, superior
reliability thanks to a built-in array of protections.
As a result the following performances has been
achieved:
■ NO NEED OF BOOTSTRAP CAPACITORS
EVEN AT THE HIGHEST OUTPUT POWER
LEVELS
■ ABSOLUTE STABILITY WITHOUT EXTERNAL
COMPENSATION THANKS TO THE NNOVA-
TIVE OUT STAGE CONFIGURATION, ALSO
ALLOWING INTERNALLY FIXED LOSED
LOOP LOWER THAN COMPETITORS
■ LOW GAIN (30dB STEREO FIXED WITHOUT
ANY EXTERNAL COMPONENTS) IN ORDER
TO MINIMIZE THE OUTPUT NOISE AND OP-
TIMIZE SVR
■ SILENT MUTE/ST-BY FUNCTION FEATUR-
ING ABSENCE OF POP ON/OFF NOISE
■ HIGH SVR
■ STEREO/BRIDGE OPERATION WITHOUT
ADDITION OF EXTERNAL COMPONENT
■ AC/DC SHORT CIRCUIT PROTECTION (TO
GND, TO VS, ACROSS THE LOAD)
■ LOUDSPEAKER PROTECTION
■ DUMP PROTECTION
■ ESD PROTECTION
4
Block Description
4.1 Polarization
The device is organized with the gain resistors di-
rectly connected to the signal ground pin i.e. with-
out gain capacitors (fig. 27).
The non inverting inputs of the amplifiers are con-
nected to the SVR pin by means of resistor divid-
ers, equal to the feedback networks. This allows
the outputs to track the SVR pin which is sufficient-
ly slow to avoid audible turn-on and turn-off tran-
sients.
4.2 SVR
The voltage ripple on the outputs is equal to the
one on SVR pin: with appropriate selection of CS-
VR, more than 55dB of ripple rejection can be ob-
tained.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7350A_05 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:22W BRIDGE-STEREO AMPLIFIER FOR CAR RADIO |
| TDA7360 | 功能描述:音頻放大器 22W Stereo 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 |
| TDA7360HS | 功能描述:音頻放大器 18V Op 28V DC 36W 50V Supply 5A Output 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 |
| TDA7361 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW VOLTAGE NBFM IF SYSTEM |
| TDA7365 | 功能描述:音頻放大器 2X7W 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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