The TPA2039D1 is a 3.2 W high efficiency filter-free class-D audio power amplifier (class-D amp) with 12 dB of fixed gain in a tiny 1.21 mm × 1.16 mm wafer chip scale package (WCSP). The device requires only one external component.
Features like 93% efficiency, 1.5 mA quiescent current, 0.1 µA shutdown current, 82-dB PSRR, 27 µV output noise and improved RF immunity make the TPA2039D1 class-D amplifier ideal for cellular handsets. A fast start-up time of 4 ms with no audible pop makes the TPA2039D1 ideal for PDA and smart-phone applications.
| Audio input type | Analog Input |
| Architecture | Class-D |
| Speaker channels (max) | Mono |
| Rating | Catalog |
| Power stage supply (max) (V) | 5.5 |
| Power stage supply (min) (V) | 2.5 |
| Load (min) (Ω) | 4 |
| Output power (W) | 3.2 |
| SNR (dB) | 95 |
| THD + N at 1 kHz (%) | 0.05 |
| Iq (typ) (mA) | 1.5 |
| Control interface | GPIO |
| Closed/open loop | Closed |
| Analog supply (min) (V) | 2.5 |
| Analog supply voltage (max) (V) | 5.5 |
| PSRR (dB) | 86 |
| Operating temperature range (°C) | -40 to 85 |
| DSBGA (YFF) | 9 | 1.96000000000000028000000000000001 mm² 1.4000000000000001 x 1.4000000000000001 |