TDA2030A UTC, amplifier testing. Characteristics Measurement
| Testing device | TDA2030A UTC amplifier |
| Sampling mode | 24-bit, 48 kHz |
| Interface | E-MU1616m |
| Testing chain | E-MU1616m>TDA2030A UTC amplifier>E-MU1616m |
| Supply voltage bipolar | -18V...0...+18V |
| Load resistance | 4 Ohm |
| Testing power | 8W |
| Maximum power | 20W |
| 20 Hz - 20 kHz filter | ON |
| Normalize amplitude | ON |
| Level change | -0.5 dB / -0.5 dBБ |
| Mono mode | OFF |
| Calibration singal, Hz | 1000 |
| Polarity | correct/correct |
Summary
| Frequency response (from 40 Hz to 15 kHz), dB | +0.05, -0.06 |
Excellent |
| Noise level, dB (A) | -101.7 |
Excellent |
| Dynamic range, dB (A) | 101.7 |
Excellent |
| THD, % | 0.020 |
Good |
| THD + Noise, dB (A) | -71.8 |
Average |
| IMD + Noise, % | 0.030 |
Good |
| Stereo crosstalk, dB | -73.2 |
Good |
| IMD at 10 kHz, % | 0.022 |
Good |
| General performance | Very good |
Frequency response
Left |
Right |
|
| From 20 Hz to 20 kHz, dB | -0.14, +0.03 |
-0.13, +0.05 |
| From 40 Hz to 15 kHz, dB | -0.07, +0.03 |
-0.06, +0.05 |
Noise level
Left |
Right |
|
| RMS power, dB | -100.6 |
-100.6 |
| RMS power (A-weighted), dB | -101.6 |
-101.7 |
| Peak level, dB FS | -80.4 |
-79.6 |
| DC offset, % | -0.0 |
-0.0 |
Dynamic range
Left |
Right |
|
| Dynamic range, dB | +100.6 |
+100.6 |
| Dynamic range (A-weighted), dB | +101.7 |
+101.7 |
| DC offset, % | +0.00 |
-0.00 |
THD + Noise (at -3 dB FS)
Left |
Right |
|
| THD, % | 0.02058 |
0.01897 |
| THD + Noise, % | 0.02070 |
0.01912 |
| THD + Noise (A-weighted), % | 0.02681 |
0.02455 |
Intermodulation distortion
Left |
Right |
|
| IMD + Noise, % | 0.02820 |
0.03148 |
| IMD + Noise (A-weighted), % | 0.01502 |
0.02077 |
Stereo crosstalk
Left |
Right |
|
| Crosstalk at 100 Hz, dB | -84 |
-81 |
| Crosstalk at 1000 Hz, dB | -80 |
-64 |
| Crosstalk at 10000 Hz, dB | -61 |
-44 |
IMD (swept tones)
Left |
Right |
|
| IMD + Noise at 5000 Hz, | 0.02762 |
0.04863 |
| IMD + Noise at 10000 Hz, | 0.01513 |
0.01921 |
| IMD + Noise at 15000 Hz, | 0.01228 |
0.00978 |
Conclusions
| The first and main question: how similar are the TDA2030A UTC and TDA2030A STM? Manufacturer information UTC (Unisonic Technologies Company Limited): Unisonic Technologies Company Limited was founded in 1990, and it is a supplier of products for high-tech semiconductor devices and IC design. The company is headquartered in Taiwan, and production facilities throughout China and in Taiwan. In other words, UTC is an official company with its own brand and thousands of employees. |
| Second question: Did UTC officially manufacture the TDA2030A chip? And easily find Datasheet TDA2030A from UNISONIC TECHNOLOGIES CO., LTD. In other words, the official company officially produces chip TDA2030A. It remains to compare the Datasheet from UTC and STM (let's compare the main electrical characteristics): |
|
| Obviously, all the characteristics in the official UTC document are absolutely identical to the characteristics in the datasheet from STM. |
| Considering the fact that harmonic distortion when operating on a load can be called the "handwriting" of the amplifier, there is Last question: how similar is the harmonic distortion of the TDA2030A UTC and the TDA2030A STM? |
|
| Harmonic ones are very similar. |
| Another feature of the TDA2030A STM is a slight drop in frequency response in the region of 50-200 Hz. If you increase a little resolution of the frequency response graphs, you can check if the TDA2030A UTC has a similar decline: |
|
| Obviously, there are recessions not only in both microcircuits, but also completely repeat each other. |
|
Summary: TDA2030A UTC is almost a complete copy of the original TDA2030A STM. The only drawback of TDA2030A UTC is power. You can buy an amplifier in our store kit-amp.com This module can be recommended for high quality bookshelf speakers with woofer up to 16cm and full range speakers |
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