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參數(shù)資料
| 型號： | TDA7396 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 45 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM11 |
| 封裝： | MULTIWATT-11 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 280K |
| 代理商： | TDA7396 |
FUNCTIONAL DESCRIPTION
Pin
Function
Description
1, 2
INPUTS
The input stage is a high impedance differential type also capable of operation in single
ended mode with one input capacitively coupled to the signal GND. the impedance seen
by the inverting and non inverting input pins must be matched.
4
CD - DIA
The TDA7396 is equipped with a diagnostics circuitry able to detect the following events:
- Clipping in the Output Signal
- Thermal Shutdown
- Open Load (before turn-on)
- Shorted Output: to GND, to Vs, across the load (after turn-on)
The CD-DIA(open collector) pin gives out the diagnostics signal (low during clipping or
output fault condition).
The device does not work as long as the faulty condition holds; the normal operation is
automatically restored after the fault removal.
5, 7
OUTPUTS
The output stage is a bridge type able to drive loads as high as 2
.
It consists of two class AB fully complementary PNP/NPN stages fully protected.
A rail to rail output voltage swing is achieved with no need of bootstrap capacitors.
No external compensation is necessary.
8
STAND-BY
The device features a ST-BY function which shuts down all the internal bias supplies
when the ST-BY input is low.
In ST-BY mode the amplifier sinks a small current (in the range of few
A).
When the ST-BY pin is high the IC becomes fully operational.
10
SYNC
A resistor (RS) has to be connect between pin 10 and GND in order to program the
current that flows into CM capacitor (pin 11). The values of CM and RS determine the time
required to bias the amplifier.
11
MUTE
a) The pin will have a capacitor (CM) tied to GND to set the MUTE/STAND-BY time. An
automatic Mute during turn on/off is provided to prevent noisy transients
b) If a independent Mute function is needed, an external transistor circuit (see fig. 4) may
be connected to this pin; 1% precision resistors have to be used for REXT / RS in to order
to reach the fixed limits 0.63
≤ REXT / RS ≤ 0.69
1
2
11
IN-
0.22
F
0.22
F
IN+
8
STANDBY
TO
C or VS
10
6
OUT+
OUT-
7
5
4
Vref
CD-DIA
TDA7396
D93AU007
10K
1000
F
GND
RS
CM
100nF
39
TO
C
+VS
REXT
TO
C
Figure 3: Application Circuit with External Mute Control
TDA7396
4/11
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參數(shù)描述 |
|---|---|
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| TDA7401013TR | 功能描述:音頻 DSP Digital Audio Proc 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 |
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