TPA3255, OPA1632DR subwoofer 600W amplifier board finished board DC48V

 

Product Details：

 

   The OPA1632 is a fully differential amplifier used to drive high performance audio analog-to-digital converters (ADCs). The audio quality, it provides very low noise and output driver, this application is optimized for the OPA1632's excellent gain bandwidth of 180MHz 50V/µs and very fast conversion rate, producing very low distortion of 0.000022%. The very low input noise of 1.3nV/√Hz further ensures the signal-to-noise ratio and dynamic range. The flexibility of the fully differential structure allows for easy single-ended fully differential output conversion. The differential output reduces even harmonics and common mode noise interference OPA1632 provides excellent performance ADCs high performance audio PCM1804. To 4 Ohm speakers to provide up to 300W stereo, with the performance of traditional Class AB amplifiers (<0.03% THD) and Class D amplifier power efficiency. Its SNR is greater than 100dB, PSRR is 80dB, and the power stage efficiency is up to 88%, Texas Instruments TI industry power Class D amplifier - n

 

 

Product Features：

 

Using the original TPA3255, OPA1632DR

 

The main filter electrolytic capacitors with a capacity of 470UF/100V*4, to ensure a strong source of power support.

 

The resistor is a five-ring metal resistor, and the main circuit adopts a five-ring metal film resistor with ±1% accuracy, which ensures a good signal-to-noise ratio of the whole machine.

 

The use of audio special high-current inductors to ensure that the sound is crisp and powerful.

 

PCB adopts 1.6mm thick double-sided plate, 2.0 ounce copper thickness, spray tin full process, to ensure the good performance of the size of the current through. The PCB quality.

 

Basic parameters：

 

1. working mode: D class

 

2. Static current: 65mA

 

3. Operating efficiency: 88% 4.

 

4. output power: 600W / 4 ohms 10% THD

 

5. Frequency response: 20Hz to 20KHz

 

6. dynamic range: >100 dB

 

7. signal-to-noise ratio: 100dB (A-Weighted)

 

8. Operating voltage: DC48V

 

9. PCB size: 140 * 95MM

 

10 potentiometer function: from left to right 1. subwoofer frequency 2. volume

 

11 Potentiometer spacing: 34MM, wire length 30CM

 

Package：

1pc TPA3255 OPA1632DR subwoofer 600W amplifier board finished board


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