Ultra Small NXP180 Amp Module - diyAudio
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Old 11th February 2008, 10:56 PM   #1
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Location: Launceston, TAS, Australia
Default Ultra Small NXP180 Amp Module

Here is my latest amplifier module hot off the press!

The NXP180 Dual Die Lateral Amplifier Module.
It measures only 50mm x 50mm
Almost all of the components are SMD

It has very low Noise and Distortion as shown in the THD+N and FFT Graphs below.

The THD+N is flat from 5hz-20khz @ 0.006%
It is capable of power levels as high as 300 watts into 4 Ohms
and >200 watts into 8 Ohms.

All these measurements were done on a ATS-2 AP

Prototype module shown below.
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Old 12th February 2008, 04:58 PM   #2
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OK here is the THD+N graph
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Old 12th February 2008, 04:59 PM   #3
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And here is the FFT Graph from the ATS-2 AP
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Old 12th February 2008, 05:26 PM   #4
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Looks good, should make a very nice 60watt amp with low impedant drive, but what will they cost
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Old 12th February 2008, 05:42 PM   #5
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Hi tinitus

It will sell for around 55 Euro ($89.00AUD)plus postage and handling.
and will be fully assembled and tested.
I am expecting to have them released sometime in march 2008.

I hope this helps
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Old 12th February 2008, 07:49 PM   #6
tinitus is offline tinitus  Europe
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WOW! You might sell tons of those got an itche to make active speakers

No bias adjustnent, or is that a tiny little smd pot i see ?
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Old 12th February 2008, 08:01 PM   #7
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Hi Antony

What are we looking at for min/max voltage rails? I might well have a use for half a dozen of those.
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Old 12th February 2008, 08:14 PM   #8
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Hi Tinitus

Yes I hope so, They sound most excellent as well.
because of their small size and performance they are well suited to 5-7 channel amplifiers.

There are plans also to release a high powered SMPS based on a
new SMPS IC which uses a new type of switching technology that removes any remaining dissapation found in the output stage when using a conventional smps IC such as the SG3525 IC.
200 watts can be produced without any heatsinking at all and 400 watts with only a metal plate as a heatsink.
Higher powers at done using one of our own ICs which is based on the same technology.
The idea would be for DIY's to make a very small high quality multi channel amplifier using these modules and one of these smps at a very cheap price, which at the end of the day is at the heart of DIY audio.
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Old 12th February 2008, 08:20 PM   #9
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Hi Pinkmouse

The min voltage is +-20v and the max is +-70v

I hope this helps...
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Old 13th February 2008, 01:51 PM   #10
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Sorry Tinitus I missed your other question.
Yes there is a small SMD trimpot for bias adjustment...
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