1.7W 单声道、模拟输入 AB 类音频放大器
| 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) | 8 |
| Output power (W) | 1.7 |
| SNR (dB) | 105 |
| THD + N @ 1 kHz (%) | 0.02 |
| 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 - 1.7 W Into 8 Ω From a 5-V Supply at THD = 10%
(Typical) - Low Supply Current: 4 mA Typical at 5 V
- Shutdown Current: 0.01 μA Typical
- Fast Start-Up 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
- Pin-to-Pin Compatible With TPA2005D1 and
TPA6211A1 in SON Package - Available in 3 mm × 3 mm SON Package (DRB)
The TPA6204A1 device (sometimes referred to as TPA6204) is a 1.7-W mono fully-differential amplifier designed to drive a speaker with at least 8-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 TPA6204A1 (TPA6204) is available in the space-saving 3 mm × 3 mm SON (DRB) package.
The TPA6204A1 (TPA6204) is ideal for PDA or smartphone applications due to features such as ?80-dB supply voltage rejection from 20 Hz to 2 kHz, improved RF rectification immunity, small PCB area, and a fast start-up with minimal pop.
