Yda138 vs tpa3116
Popular power supply voltages include 12V, I am using a terminal block so that I can swap power supply modules, but really any jack will do as long as it satisfies the voltage requirements. I heard about the TPA, ordered it, and put all the pieces together in a box this past weekend. In this video, Steve discusses his own experience with DCC systems and power supply components.
Whatever tpad2 schematics styles you want, can be easily bought here. This small chip works in class D being stereo amplifiers with digital power wire stage for loudspeakers up to W at 2 Ohms in mono. The power output stage in class D amplifier is implemented using two integrated circuits from the company Texas Instruments - TPAD2 for the right and left channel and the TPAD2 for the channel of the subwoofer.
I arranged connectors and switch and I designed right position of holes. By doing so, the amplifier can drive lower impedance speakers, resulting in double the power. The schematic has a table with cap values for increasing that F3 relieving the L-R speakers from some bass duty. So 2 weeks ago I asked on here about how to get started building my own amplifier.
Open the original schematic design, free development software interface download 7 The following example shows how to use this procedure. Here's the photos. November Our aspiration is to provide the best audio products at the best prices.
First I arranged parts to the box and when I was happy with their positions that I marked with a pencil holes which I after that drilled. Pause the music and notice no hiss or hum. Use a nearby sound source, such as MP3 or CD player to have a trial. This board delivers quality sounding music when it's playing, and is quiet as a mouse when Schematics. In this mod we also configure the input as differential. However, the other side of those capacitors do not go directly to the TPA Power Supply.
The chip's gain is set 26dB. The board's design, with the popular TPA chip, delivers Class D efficiency and high-quality clean sound reproduction. Limited Time Sale Easy Return. Addeddate Welcome to www. The output of the BTM module is indeed differential, and all 4 of those lines go through capacitors.
Go to FAQ. Adrian's Digital Basement 51, views. G Dec. Yeah, I just ran the ground to the board ground and the input jack, I believe. Reading the Official Installation Manual is the safest way to preserve the legal guarantee in setting up the product properly. It endeavors to provide the products that you want, offering the best bang for your buck.
One concern I had was that the audio was differential. Berikut penampakan power amplifier TPAD2D buatan saya: Pada percobaan pertama ini saya menggunakan komponen throughhole, pertimbangannya adalah karena belum terbiasa nyolder SMD dan agar bisa mencoba-coba jenis komponen berbeda.
TPA schematic. To proceed, I needed to trace out a bit of the schematic from the board. Please observe the connection schematics when connecting the amplifier board. This top post will be updated as I progress and I appreciate any feedback on the plans, as I am hoping I am not missing something, risking a disaster.Shop for class d amplifier at Best Buy.
Parts labor and shipping included. No deductibles or added costs. Find low everyday prices and buy online for delivery or in-store pick-up It certainly is better than my NuForce MCA The amp is really everything you said it would be, easily besting my ASLs in triode mode. Kindest regards and please let me know if I can provide references. I had a good listen to the Amp the last two daysfor around 6 Hours and I'm very impressed with the sound. All rights reserved.
Posted on August 29, No Comments. Post a Comment Cancel Reply Name. E-mail Address.User Name Stay logged in? Originally Posted by eddiecurrent. Apparently it,s Yamaha,s answer to the tripath class d chip. Back in the 80,s and 90,s Yamaha made good performing audio, and it was the only Japanese speakers that I thought sounded pretty good. I remember back in the early 80,s I was an engineer at a TV station and a Sony rep came to our engineers meeting to demo a new technology called a CD player.
He had a Sony amp to hook the large thing up to. My immediate impression was that the music was very, very bright, sibilant, jarring. Sure, it showed great clarity and low noise floor, but that wincingly sharp upper register Sound like crap, no use for this module. I hate to drag an old thread out of the dust, but there isn't much out there on this amp, and I can answer the OP's question for those who come looking.
It has a red board and has MK written on it. With the exception of the PAM, this Yamaha is the weakest of the bunch. Bass is somewhat lacking, and I have to turn it to near full volume to get it loud enough to fill a mid-sized room. Turned up full it sounds completely awful. Hooked up to a cheap pair of speakers it would be fine in a small room or out in a shop where it could be used for background music.
I have revised my opinion. Amazing module, very good sound, zero noise or pops-up and very strange too. Paired with 8 ohms real speakers, filters are very sensitive, with 4 ohms sound is crap. Put a good switching psu, much better sound compared with linear psu with transformer. Input level is very tricky. With Sansa player or cell phone sound was bad and pot turned to max.
I plan to use it in a camper van, where it will power 11cm 8Ohm cheapshit speakers. Anyone tried how the bluetooth on these works? At the moment, there is a tpa red amp inside, but 12V from the battery seem to be too little at a bit higher volume, the amp switches on and offso I picked this one and hope it works better.
Originally Posted by bobina. BB code is On. Smilies are On. Forum Rules. All times are GMT. The time now is PM. Resources saved on this page: MySQL Anyone heard the Yamaha YDA e chip? User Name. Stay logged in? Mark Forums Read.
Chip Amps Amplifiers based on integrated circuits. Please consider donating to help us continue to serve you.These speakers are rated W at 8ohms. At normal listening and a tad above these 's really sound nice. But they do not like playing louder. And Im also convinced that I can hear the distortion. Would I gain anything trying to find 4 x TPA boards instead? These are rated 40W higher each board.
Problem is Im lead to believe these Sanwu boards sound the nicest in the budget end of class D. I have also been looking at the IRS but Ive read that they are noisy? I already think the are noisy even though I lowered gain to 20dB. Probably not a jump people take because of big difference in power supply? So If anyone have experience with both I would like to hear.
Headphone and speaker enthusiast. Primarily because you can give its signal stages the OTA front-end a very clean low impedance supply because the power pins are brought out of the chip. To my ears there seems to be something lacking in the TPA's bass, no matter the power supply details. Another important matter is the IRS reference design has low impedance input 3k so needs a good read classA buffer, not an opamp driver for it. I'm also interested to hear opinions about this. None that I have seen has low enough supply impedance on those analog rails.
But its no big deal to add the caps necessary on yourself. I used to own several of the IRSbased Classdaudio amps and they did sound terrific. I prefer the TPA overall at least a well-designed one like the gmarsh wienersbut my memory of the IRS comparison was more about taste. The IRS yes had solid bass and a more rounded tubey presentation.
But depending on the speakers you have to have a nice beefy power supply - I had 60k uf and even 90k at one point. Bigger the transformer the better too IMO. Then an enclosure All that starts to add up. Damn good amps though. Sanwu has filter designed for 4 ohm load. Originally Posted by wushuliu. Thanks for all the feedback. Seems like a hot topic.Official Facebook Group at Budget Audiophile.
UK Buyers Guide. A guide to creating searches on Craigslist to find audio gear! What is a DAC and do I need one? Everything you ever wanted to know about acoustical treatments ONE. Everything you ever wanted to know about acoustical treatments TWO. While there are some great budget options out there in the US, those options are not always available for the same prices else ware. So I want to try out a nice set up for my desktop and so far the most popular boards on the internet are these 2 but I haven't seen a direct comparison.
From what I've seen the TPA is better but I'm not sure, especially when the much loved smsl sa 50 is based on a tda Has anyone tried both of these out side by side? Is the problem of background hiss also a big issue? I haven't used any TPAbased amps, so this post is not really useful because I can't really compare, buuuuttt Thanks for the input! Since they are my desktop speakers I plan on using them for movies from time to time aswell.
Do these handle it well? I won't be going full blast with the volume cause of course cause the speakers are relatively near infront of me. So I think no matter what speakers you're using it would have more than enough power at close range. As far as bass goes since you asked about it in another post on the thread, and I don't want to spam up your thread with too many replies generally speaking any amp will give you plenty of bass as long as it has plenty of headroom - in other words, as long as you're not using it at anywhere near its usable power limits, and it's hard to imagine too many situations where you'd go near those limits with even a low-powered digital amp for desktop use.
I really need to get some of the other digital amps to play with I'm always replying to SA50 questions on here because I love them.
I've used a decent number of low and mid-level amps but the SA50 is the only digital amp I've used so I can't really compare it to its direct competition. I've got several tpa amps around my house. I use a tda on my monitor audio bx2's and I prefer the tda amp. But only very slightly - it seems to have a bit better bass response. I'm glad I found someone with both!
What power supplies are you running them with? And what impedance speakers work best with them? I brought them all as boards and built them into enclosures along with a pi to use as a squeezebox replacement. I've used 24v 10amp supply's, old computer psu's and w laptop supplies and I think for ease of use the laptop ones the best decent size and already sealed up in a safe plastic box I didn't find that much difference in the sound.Key specs: 4.
The limitation seems obtained by different packages for the two chips. The TPA is described in the common data-sheet as able to operate "without heat sink", which is no doubt correct for up to 19V supply voltage but may be arguable at full supply voltage. The TPA has a wide supply voltage range, even down to below 5 Volt. Being so versatile, it can be used for most audio applications in ordinary consumer products.
For higher power levels TPA is limited by the maximum in supply voltage of 26V and the possibility to cool the chip. That left the impression of clear and undistorted sound with no apparent flaws. It was tempting to build a stereo amplifier from two small boards and appreciate particular features of the chip.
When the TPA is used in a parallel coupling monowith the output switches operated synchronously, the resulting switch impedance becomes as low as 60mOhm.
Though restricted by supply voltage and the switch impedance not being the only characteristic of importance, the low switch impedance invites low impedance loads to be used and less heating of the chip.
Loudspeakers with importantly varying impedance can be handled. Quite some output power can be provided and the amplifier is suited for automotive use, moderate PA equipment and guitar amplifiers. If needed, the TPA can be used with a supply voltage below 5V. Further, the modulation frequency may be set as high as 1. Taking the attractive price into account the limitations are fair. A maximum supply voltage of 26 Volt makes the parallel-coupled TPA less suited for 8 Ohm loudspeakers simply because its potential cannot be used.
The chip cooling is generally adapted to the moderate supply voltage and can be somewhat improved with a heat-sink on top of the housing. A new TPAx series is launched by TI, that is at the top for monolithic class D amplifiers, but unfortunately at a somewhat higher price. The implementation with the two low-cost boards put a few further constraints.
The total of about uF on-board is a good start but not sufficient for an amplifier suited for low impedance loudspeakers. More importantly, the 25V rating means that a 24V supply voltage will use almost the full voltage rating of the capacitors and leave a moderate reliability.
For the low-cost boards the supply voltage should not exceed 22V and 19V is suggested. That should allow Watt in 8 Ohm and the double in 4 Ohm. The initial LC output filters do not live up to the amplifier potential and should be replaced with better filters external of the board. The input signal coupling capacitors are of a tiny ceramic SMD type.
It is possible to identify the capacitors on the boards and even remove them, but it is very difficult to insert anything much better with the miniature size. Generally, the initial capacitors should be left in place.Усилитель класса D - сравниваем звучание (TDA7498 vs. TDA7293)
If implemented, a heat conductive spacer plate of 2mm thickness and the size of the TPA housing should be put below the heat-sink, such that the heat-sink is elevated above the adjacent components. On each of the two low-cost boards, an AWG 16 wire was connected on the rear side to the ground plane.
This is needed for the external output filter. The initial output filter chokes were removed and left terminal points for external filters. The polarity protection diodes were short-circuited. The boards were mounted on a bigger board that serves as a mother-board. On the bigger board more power line decoupling was added. For each amplifier board, another uF were added which leaves some uF total for each channel.
It could be interesting to test the TPA boards with different output filters as the boards can supply quite some current. Therefore, the wires for the external filters were taken to screw terminals on the bigger board.Login or Sign Up. Logging in Remember me. Log in. Forgot password or user name? Posts Latest Activity. Page of 1. Filtered by:. Previous template Next. I've had both of these amps for some time and never had a chance to play with them. I had a bit of time today playing hookie from work to listen to these 2 amps in the same setup source, power supply, speakers as I was curious myself.
So for anyone interested in subjective impressions between these 2, here goes The TDA seemed just a touch quieter I had to really put my ear against the tweeter to hear any hiss and it was very very faint. I've heard louder hiss on much more expensive amps. With the same source level and power supply, the TDA was considerably louder. How to they sound? It sounds much more balanced across the band, maybe with a subtle relaxed sound in the upper midrange.
The highs were nice and not exaggerated, very smooth. I could listen to it for longer than the TPA The TPA, on the other hand, sounded imbalanced. It was more forward in the midrange and upper midrange. More sibilance with the same material. And the highs seemed subdued a bit. The only minor thing I liked more about the TPA is it seemed to have a bit more punch in the upper bass, but it's a very small bit more.
I would still think its midrange was a bit forward for me as it was the first one I turned on and immediately had that impression, but overall it's not bad sounding.
But compared to the TDA, it was clear which one I preferred due to sheer balance. Other little things I'm still kind of curious about the red TPA board not available on PE with the adjustable volume. I'm sure it would sound pretty much the same as the blue version 2. Going forward for projects, I'll be sticking with the TDA for now.