Strangely enough, when I went to their site, it links to their Ebay site. And that is the message i received from the Ebay site. Maybe i would write into the directly and see what happens.
Oon
That was 2 years ago before Merus was acquired by Infineon.
This is MA12070P, with the I2S interface. Later I did another revision of PCB with Schottky diodes added to protect the IC from overstressing (you can see results on the photo attached).
The sound was good thou, I still have a couple of PCBs and IC's to play with. However, I did not compare it with my TAS5548+TAS5162 amp.
Attachments
Infineon also released some GaN Evaluation Board modules paired with Merus chips :
EVAL_AUDAMP24 - Infineon Technologies
EVAL_AUDAMP24 - Infineon Technologies
Hallo SMSL!!
Please do a very simple power amp configurable as per 1.0, 2.0, 2.1 etc.. + user selectable power modes (PMP0, PMP1 etc) with external power. The world needs a real simple, very high quality, low noise, 30W amp for active systems etc. No BT, non nothing except a simple small power amplifier.
//
Hi All - SMSL did some very good design choosis when they build the SA300 - use the analog input version of MA12070 to get the best output noise level.
TNT what you are asking for is not hard - any simple micro controller will enable the other PMP of the MA12070P or non P devices. 1.0/2.0/2.1 and 4 can be done with 2 jumpers.
Yes that would be a very interesting design to be given to the Audio DIYs /Jakobsen Denmark
TNT what you are asking for is not hard - any simple micro controller will enable the other PMP of the MA12070P or non P devices. 1.0/2.0/2.1 and 4 can be done with 2 jumpers.
Yes that would be a very interesting design to be given to the Audio DIYs /Jakobsen Denmark
Hi,
This showed up on my radar. Looks interesting...
Balanced Class D 1.0 / 2.0 / 2.1 / 4.0 Amplifier Module MA12070 160W 4 Ohm - Audiophonics
Oon
This showed up on my radar. Looks interesting...
Balanced Class D 1.0 / 2.0 / 2.1 / 4.0 Amplifier Module MA12070 160W 4 Ohm - Audiophonics
Oon
Thinking out loud, I just wondered what it would be if you connected part of the volume control (assuming it has 3 gang to a voltage regulator) that will supply a TPA3116, so at low volume it would be at 6V and at high volume at 24V... it would help to increase the PWM % at low volume. Although not quite as sophisticated as a 3 level PWM, but will be a compromise.
Oon
Oon
Also available here, for us Europeans!
Balanced Class D 1.0 / 2.0 / 2.1 / 4.0 Amplifier Module MA12070 160W 4 Ohm - Audiophonics
Out of stock )
The link has been shared weeks ago.
Question for members :
Is it possible to power 2 modules (dual mono) with only one Dual rail SMPS PSU 2x24V like this ? :
SMPS300R Module d'Alimentation a Decoupage 300W / +/-24V - Audiophonics
The link has been shared weeks ago.
Question for members :
Is it possible to power 2 modules (dual mono) with only one Dual rail SMPS PSU 2x24V like this ? :
SMPS300R Module d'Alimentation a Decoupage 300W / +/-24V - Audiophonics
Last edited:
A simple alternative in Europe: Lusya Infineon MA12070 Audio Amplifier Board 2*80W stereo class D Amplificador T0350|Amplifier| - AliExpress
Same as from Audiophonics.
Apparently no real output filter chokes.
Same as from Audiophonics.
Apparently no real output filter chokes.
Last edited:
Here is my version of PCB based on Infineon Demo board. It's for MA12070p, amplifier with I2S input. I changed ferrite filters to LC ones because of manufacturer recommendations and placed two switches in order to change I2C address and change mono/stereo mode. Its dimensions is: 68x45mm (2.7x1.8inch). Any feedback aappreciated. This is my first experience with PCB. Thanks!
MA1070p mplifier -
EasyEDA
MA1070p mplifier -
EasyEDA
Attachments
Last edited: