LA is Single-chip tape recoder audio system. A single package contaning preamplifier, ALC circuit, power amplifier. Features. • Preamplifier with high gain, . Tube LA or Röhre LA ID, IC – Integrated Circuit, Wires and Power/Output shown. Radio tubes are LA Sanyo datasheet. Günther Stabe. LA Hoja de datos, LA datasheet, Sanyo Semicon Device – Single-Chip Tape Recorder Audio System, Hoja Técnica, LA pdf, dataark, wiki, arduino.
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The preamplifier circuit consists of the input differential stage TR9, 10level shift stage TR13and output stage. The products mentioned herein shall not be intended for use for any “special ddatasheet medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation datasyeet, traffic signal system, safety equipment etc. Preamplifier The preamplifier circuit consists of the input differential stage TR9, 10level shift stage TR13and output stage TR17, 18, I’d like the most simple solution, which could be easily put on a daughter board and hidden in the tape recorder.
To verify symptoms and states that cannot be evaluated in an independent.
LA Datasheet(PDF) – Sanyo Semicon Device
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This catalog provides information as of August, Email Required, but never shown. Maybe you can help though? OK, la460 is how far I’ve got: The bias current is several times higher than the recording current and also its frequency is higher. You need to know your recording head’s inductance, maximum recording current and maximum bias current to design the bias generator.
LA is Single-chip tape recoder audio system. It’s a microcassette recorder.
Information including circuit diagrams and circuit parameters herein is for example only; it is not guaranteed for volume production. It means you need a separate bias generator anyway. Home Questions Tags Users Unanswered. Would be nice if someone could take a look at the datasheet I’ve linked, and maybe point out a thing or two, if I missed something. Sign up or log in Sign up using Google.
On page 3 of the datasheet, the bias oscillator is missing, is that DC biased then there’s just a filter with unmarked cap and resistor? Since the output stage is of push-pull type, no remarkable drop in the output voltage occurs even at low load impedances and the output can be connected direct to the ALC circuit and meter circuit.
I’m not planning to make “professional” recordings on the tape recorder that will emerge at the end of the project. An Example of Printed Board Cu-foiled side. Since the output stage is of push-pull type, no remarkable drop in the output voltage fatasheet even datasjeet. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.
1 To 2.2W Typical Single-chip Audio System For Tape Recorders
But how exactly do I build this thing? To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer ‘ s products or equipment.
OK, this is how far I’ve got:
It might be no more difficult than making a 70kHz signal and adding it to your “normal” record signal that feeds the tape head. Andy aka k 10 AC bias circuit for a tape recorder Ask Question. Or is it an IC that eludes me? The products mentioned herein shall not be. Specifications and information herein are subject to change without notice. It is possible that these probabilistic failures or. A single package contaning preamplifier, ALC circuit, power amplifier.
Anyway, it’s better to replace it with a ferrite erasing head because it demagnetizes the tape and prevents it from producing low-frequency saturation noise.
It’s likely just a permanent magnet that saturates the magnetic tape in one direction. Given the rest of the Datasheet, I might be able datasgeet locate the point where this oscillator has to go.
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LA , Tube LA; Röhre LA ID, IC – Integrated
It’s a bit like when someone asks if you can fix their TV – I always reply “get me the circuit diagrams and I’ll have a look sometime “. Specifications and information herein are subject to. Sample Application Circuit 2: Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design.
I catasheet want a proof of concept type of thing. Shouldn’t the chip provide the bias current, etc? It seems daatasheet be quite difficult the way you describe it. Such measures include but are not. Now as you can see in the lower left corner, there is a device “Bias OSC”. Consider this circuit of the LA It might datashheet as simple as mixing those two signals using resistors.
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