TPA2051D3 Overview
The TPA2051D3 is an audio subsystem with a mono Class-D power amplifier, a stereo DirectPath headphone amplifier, and bypass switches. The DirectPath headphone amplifier eliminates the need for external dc-blocking output capacitors. The built-in charge pump creates a negative supply voltage for the headphone amplifier, allowing a 0 V dc bias at the output.
TPA2051D3 Key Features
- 23 Mono Class-D Amp: 730 mW into 8 Ω from 3.6 V Supply (1% THD)
- Class-D Bypass Switches
- DirectPath™ Stereo Headphone Amplifier
- No Output Capacitors Required
- SpeakerGuard™ Automatic Gain Control (AGC)
- One Differential Mono and Two Stereo Single-Ended Inputs
- 3:1 Input MUX with Mode Control
- 32-Step Volume Control for Both Input
- Independent Volume Controls for All Inputs
- Independent Shutdown for Headphone and