| Audio input type | Analog Input |
| Architecture | Class-AB |
| Speaker channels (Max) | Mono |
| Power stage supply (Max) (V) | 5.5 |
| Power stage supply (Min) (V) | 2.5 |
| Load (Min) (ohms) | 3 |
| Output power (W) | 3.1 |
| SNR (dB) | 105 |
| THD + N @ 1 kHz (%) | 0.03 |
| Iq (Typ) (mA) | 4 |
| Control interface | Hardware |
| Closed/open loop | Closed |
| Analog supply (Min) (V) | 2.5 |
| Analog supply (Max) (V) | 5.5 |
| PSRR (dB) | 85 |
| Operating temperature range (C) | -40 to 85 |
- Designed for Wireless or Cellular Handsets and
PDAs - 3.1 W Into 3 Ω From a 5-V Supply at
THD = 10% (Typ) - Low Supply Current: 4 mA Typ at 5 V
- Shutdown Current: 0.01 μA Typ
- Fast Startup With Minimal Pop
- Only Three External Components
- Improved PSRR (–80 dB) and Wide Supply
Voltage (2.5 V to 5.5 V) for Direct Battery
Operation - Fully Differential Design Reduces RF
Rectification - –63 dB CMRR Eliminates Two Input
Coupling Capacitors
- Improved PSRR (–80 dB) and Wide Supply
The TPA6211A1 is a 3.1-W mono fully-differential amplifier designed to drive a speaker with at least 3-Ω impedance while consuming only 20 mm2 total printed-circuit board (PCB) area in most applications. The device operates from 2.5 V to 5.5 V, drawing only 4 mA of quiescent supply current. The TPA6211A1 is available in the space-saving 3-mm × 3-mm SON (DRB) and the 8-pin MSOP-PowerPAD (DGN) packages.
Features like –80 dB supply voltage rejection from 20 Hz to 2 kHz, improved RF rectification immunity, small PCB area, and a fast startup with minimal pop makes the TPA6211A1 ideal for PDA and smart phone applications.