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參數(shù)資料
| 型號(hào)： | TDA7294SV |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| 中文描述： | 100V的- 100瓦的DMOS音頻放大器靜音/意法半導(dǎo)體，由 |
| 文件頁(yè)數(shù)： | 7/13頁(yè) |
| 文件大?。?/td> | 339K |
| 代理商： | TDA7294SV |
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In addition to the overload protection described
above, the device features a thermal shutdown
circuit which initially puts the device into a muting
state (@ Tj = 150
o
C) and then into stand-by (@
Tj = 160
o
C).
Full protectionagainst electrostatic discharges on
everypin is included.
3) Other Features
The device is provided with both stand-by and
mute functions, independently driven by two
CMOS logiccompatible input pins.
The circuits dedicated to the switching on and off
of the amplifier have been carefully optimized to
avoid any kind of uncontrolledaudible transient at
the output.
The sequence that we recommend during the
ON/OFF transients is shown by Figure 4.
The application of figure 5 shows the possibility of
using only one command for both st-by and mute
functions. On both the pins, the maximum appli-
cable range corresponds to the operating supply
voltage.
APPLICATION INFORMATION
HIGH-EFFICIENCY
Constraints of implementing high power solutions
are the power dissipation and the size of the
power supply. These are both due to the low effi-
ciency of conventional AB class amplifier ap-
proaches.
Here below (figure 6) is described a circuit pro-
posal for a high efficiency amplifier which can be
adopted for both HI-FI and CAR-RADIO applica-
tions.
1N4148
10K
30K
20K
10
μ
F
10
μ
F
MUTE
STBY
D93AU014
MUTE/
ST-BY
Figure5:
SingleSignal ST-BY/MUTE Control
Circuit
PLAY
OFF
ST-BY
MUTE
MUTE
ST-BY
OFF
D98AU817
5V
5V
+Vs
(V)
+40
-40
V
PIN #10
(V)
V
PIN #9
(V)
-Vs
(VIN
(IQ
V(V)
Figure4:
Turn ON/OFF SuggestedSequence
TDA7294S
7/13
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7294V | 100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| TDA7294 | 100V - 100W DMOS Audio Amplifier With Mute/ST-BY(帶消音和預(yù)備狀態(tài)的音頻放大器) |
| TDA7295 | 80V - 80W DMOS Audio Amplifier with Mute/ST-BY(帶消音和備用的80V-80W DMOS音頻放大器) |
| TDA7296S | 60V - 60W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| TDA7296SV | 60V - 60W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7294V | 功能描述:音頻放大器 100W 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 |
| TDA7294V | 制造商:STMicroelectronics 功能描述:Audio Power Amplifier IC |
| TDA7295 | 功能描述:音頻放大器 80W 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 |
| TDA7295S | 功能描述:音頻放大器 80W 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 |
| TDA7295SV | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:80V - 80W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
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