○Description. The BA/BA is a dual OTL monolithic power IC with two built-in, high output speaker amplifier circuits. High output of 5W×2 can be. BA IC AMP DUAL POWER 12V/5W SIP-M12 Rohm datasheet pdf data sheet FREE from Datasheet (data sheet) search for integrated. BA ROHM Semiconductor Audio Amplifiers Dual Power Amplifier datasheet, inventory & pricing.

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I have designed a simple stereo amplifier which is attached below, but the bass output was bit poor. Sign up or ba4506 in Sign up using Google.

The BA has great channel separation, good channel isolation, small pop-up noise, low noise, low thermal resistance and is available in a 12 pin SIP package. Try uF, or even 10,uF. Can anyone tell how to use single pot volume control for both channels??

What do you mean by ‘poor’? Potentiometers R5 and R6 serves as the volume control for the left and right channels. Hi, what kind of a heatsink does Datadheet need? C11 and C12 are input DC decoupling capacitors for the left and right channels.

Your email address will not be published. The operating voltage range is from 5 to 15V DC. However, without knowing anything about the chip, it is obvious that really low bass performance will be poor. C9 and C10 are noise filtering capacitors. C1 and C5 are bootstrap capacitors for the left and right channels. It can deliver datasneet per channel into a 4 ohm loudspeaker at 9V supply.


Other applications of BA are portable audio players, stereo component systems, television etc. Olin Lathrop k 30 Home Questions Tags Users Unanswered. Email Required, but never shown.

BA , Tube BA; Röhre BA ID, IC – Integrated

Previous post Next post. Ranath CS 1 2. Is going to be back often to check up on new posts. Sign up using Facebook. I tried to search for SIP package heatsinks, but nothing good came up. Capacitor C3 is a power supply filter capacitor. Since you didn’t provide a link to the chip datasheet, we don’t know what it’s supposed to do.

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. So I’m planning to add extra low datashwet filter circuit to this circuit.

BA Datasheet(PDF) – Rohm

CapacitorsC4 and Datasheeet couple the outputs of the amplifier to the speakers. Post as a guest Name. This makes the IC suitable for low power car audio applications. Larger caps or a higher impedance speakers would lower the high pass filter rolloff frequency.

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Audio Amplifiers : Speaker / Headphone Amplifier Series |

BA stereo amplifier circuit admin November 3, 11 Comments. Probably means ‘bass’ output is poor.

It will adtasheet the upper frequencies. What do You mean by “base output is poor”? The problem here is the uF coupling capacitors into a 4 ohm load: Purpose of the Zobel network is to reduce oscillations and improve high frequency stability of the amplifier.

What is the function of capacitor and resistor at pin 4 and 7. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Thanks for your response. You may also like: I just could not depart your web site prior to suggesting that I really enjoyed the standard info a person provide for your visitors?


Hi Rahul use a 22k stereo control ganged control. Amplifiers based on BA does not require an output coupling transformer and can be operated from a single supply. That’s no way to improve the perceived bass response. Do you mean that the lower frequencies are not loud enough?

Addng a low pass filter won’t improve anything. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Hi Soumen you can use the following circuit a very simple one with sigle control operating both the channels.

In this case, the rolloff frequency is 85 Hz, or 2 octaves above what is considered the lowest “HiFi” audio frequency. My requirement is to have separate left and right channels and an extra woofer out.

I don’t have any idea how to do that properly. Leave a Reply Cancel reply Your email address will not be published.

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