具有 12dB 固定增益和短路保護的 3.2W 單聲道模擬輸入 D 類音頻放大器
| Audio input type | Analog Input |
| Architecture | Class-D |
| Speaker channels (Max) | Mono |
| Power stage supply (Max) (V) | 5.5 |
| Power stage supply (Min) (V) | 2.5 |
| Load (Min) (ohms) | 4 |
| Output power (W) | 3.2 |
| SNR (dB) | 95 |
| THD + N @ 1 kHz (%) | 0.05 |
| Iq (Typ) (mA) | 1.5 |
| Control interface | GPIO |
| Closed/open loop | Closed |
| Analog supply (Min) (V) | 2.5 |
| Analog supply (Max) (V) | 5.5 |
| PSRR (dB) | 86 |
| Operating temperature range (C) | -40 to 85 |
- Powerful Mono Class-D Speaker Amplifier
- 3.24 W (4
, 5 V, 10% THDN) - 2.57 W (4 , 5 V, 1% THDN)
- 1.80 W (8 , 5 V, 10% THDN)
- 1.46 W (8 , 5 V, 1% THDN)
- 3.24 W (4
- +12 dB Fixed Gain
- Integrated Image Reject Filter for DAC Noise Reduction
- Low Output Noise of 27 μV
- Low Quiescent Current of 1.5 mA
- Differential Input Impedance of 150 k
- Auto-Recovering Short-Circuit Protection
- Thermal-Overload Protection
- Filter-Free Mono Class-D Amp
- 9-Ball 1,21 mm × 1,16 mm 0,4mm Pitch WCSP
- APPLICATIONS
- Wireless or Cellular Handsets and PDAs
- Portable Navigation Devices
- General Portable Audio Devices
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.
