Stereo Audio DAC with DirectDrive® Headphone Amplifier The MAX9850ETI+ is a high-efficiency, mono Class D audio power amplifier from Maxim Integrated. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Part Number:** MAX9850ETI+
- **Type:** Class D Audio Amplifier
- **Output Power:** Up to **1.4W** (into 8Ω at 5V)
- **Supply Voltage Range:** **2.5V to 5.5V**
- **Efficiency:** Up to **90%**
- **THD+N (Total Harmonic Distortion + Noise):** **0.04%** (1kHz, 1W into 8Ω)
- **SNR (Signal-to-Noise Ratio):** **95dB** (A-weighted)
- **Shutdown Current:** **0.1µA** (typical)
- **Operating Temperature Range:** **-40°C to +85°C**
- **Package:** **28-TQFN (5x5mm)**
### **Descriptions:**
The MAX9850ETI+ is a compact, high-efficiency Class D amplifier designed for portable audio applications. It integrates a boost converter to enhance output power while maintaining low power consumption. The device features a differential input, eliminating the need for external DC-blocking capacitors. It is optimized for battery-powered devices such as smartphones, tablets, and portable media players.
### **Features:**
- **High Efficiency (Up to 90%)** – Extends battery life in portable devices.
- **Integrated Boost Converter** – Enhances output power at low supply voltages.
- **Differential Input** – Reduces external component count.
- **Low Shutdown Current (0.1µA)** – Minimizes power consumption when inactive.
- **Pop-and-Click Suppression** – Ensures clean audio during power-up/down.
- **Thermal and Short-Circuit Protection** – Improves reliability.
- **Space-Saving 28-TQFN Package** – Suitable for compact designs.
This information is based solely on the manufacturer's datasheet.
