DUAL EQULIAZER AMPLIFIER. WITH ALC. DESCRIPTION. The BA is a monolithic integrated circuit consisting of dual equalizer amplifier with ALC,and it . BA The BA and BAF are dual preamplifier ICs with built-in ALC circuits, and have been designed for use in stereo radio-cassette recorders and. BA IC PREAMP DUAL W/ALC 9SIP Rohm datasheet pdf data sheet FREE from Datasheet (data sheet) search for integrated circuits (ic).
|Published (Last):||7 September 2008|
|PDF File Size:||15.50 Mb|
|ePub File Size:||3.73 Mb|
|Price:||Free* [*Free Regsitration Required]|
BA3308 Datasheet PDF
The application example on page ba33308 gives us some idea. Sign up using Email and Password. Don’t you just hate it when they do that? Cheapo recorders often don’t have a potentiometer where one can set the recording level.
I have looked for meanings of ALC online, and I have found datassheet possible meanings that would fit this device: If you look at the datasheet, there is an example application circuit: I don’t see that in the datasheet I linked to above – you must have a different one.
Fancy posting a link to it?
I have looked for meanings of ALC online, and I have found 2 possible meanings that would fit this device:. Not really helpful in answering the question. If they talk all the time about ALC, and fail to explain what it is, all I can say then is ha3308 the datasheet stinks. Email Required, but never shown.
The same tape head is also used for both functions. What is ALC on a preamp? I have a preamp rescued from an old stereo: A variable-gain amplifier is a bit tricky to datasheeh without distortion, so having it integrated into the preamplifier was a convenience for the system designer. Post as a guest Name. The text next to Fig. So that looks very much like Automatic Level Ddatasheet, though Audio Limiter Control is a close relative, if not exactly the same.
What is ALC on a preamp? – Electrical Engineering Stack Exchange
Sign up using Facebook. The ALC signal is taken from the output, via a diode and an external capacitor.
Dual Preamplifier With Alc
ALC automatic level control was an important function in tape recorders, as the signal had to be the right level, strong enough to overcome noise but not too high to cause saturation.
Sign up or log in Sign up using Google. How should I connect it? That’s the one I linked to – xatasheet has no circuit in it. That means it’s a peak detector, whose level is then used to control the amplifier’s amplification. Instead, an circuit tries to adjust the level of the signal that is to be recorded such that it is neither too silent and vanishes in the tape noise, nor too loud so it would cause tape saturation distortion.
Notice how the amplifier is used for amplifying for both recording and playback. It looks like the IC is intended to be used with cassette tape recorders. Basically, there’s an RC combination that allows you to set how fast the IC will react datasheeh varying levels of the signal. It is the ROHM datasheet form alldatasheet.