TIDUDX8B November 2018 – June 2020
The Sound Pressure Level (SPL) for the TPA6211T-Q1 audio amplifier was tested with a Unique Sound model US-4008J speaker, with a speaker rating of 103 dB at 1.0 W. A 1.3-kHz test signal was applied to the input of Figure 18. The results are in Table 6.
| INPUT (Vrms) | OUTPUT POWER (W) | SPL (dB) | THD (%) |
|---|---|---|---|
| 1.06 | 0.25 | 99.5 | 0.08 |
| 1.5 | 0.5 | 101.2 | 0.064 |
| 1.84 | 0.75 | 102.8 | 0.054 |
| 2.13 | 1.00 | 104 | 0.057 |
| 2.39 | 1.25 | 105.3 | 0.73 |
| 2.71 | 1.5 | 106.2 | 5.12 |
Note: Data taken 10 cm from speaker playing 1.3 KHz sine wave while mounted on a baffle. Analog input signal from AP2700. Noise floor level was 46.0 dB.