Key facts
- Brand
- ESMT
- Model
- AD62550A
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-03-28
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ESMT AD62550A Class‑D Audio Power Amplifier USB/I²S Interface Datasheet
The AD62550A is a single‑chip Class‑D audio power amplifier that supports USB 1.1/2.0 full‑speed and I²S interfaces. It offers high efficiency (80% at 8 Ω load), built‑in 5 V‑to‑3.3 V regulation, anti‑pop design, and protection features such as over‑temperature and short‑circuit detection.
The document provides a functional block diagram, a complete pin‑assignment table, absolute maximum ratings, and recommended operating conditions, including supply voltage ranges, temperature limits, and input voltage specifications.
ESMT AD62550A specifications
| USB compliance | USB 1.1 and USB 2.0 full speed |
|---|---|
| Sampling frequency | 48 kHz |
| PSNR / DR | 80 dB PSNR, 78 dB DR |
| Regulator input voltage (VDD) | 4.5 V – 5.5 V |
| Driver stage supply (VDDL) | 3.0 V – 5.0 V |
| Storage temperature range | -65 °C – 150 °C |
| Input voltage range | -0.3 V – 3.6 V |
Source: ESMT AD62550A Class‑D Audio Power Amplifier USB/I²S Interface Datasheet
All ESMT AD62550A documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What USB versions does the AD62550A support?
It complies with USB Specification v1.1 and USB 2.0 full‑speed.
From: ESMT AD62550A Class‑D Audio Power Amplifier USB/I²S Interface Datasheet
What supply voltage range is recommended for the regulator input?
The recommended VDD supply voltage is 4.5 V to 5.5 V.
From: ESMT AD62550A Class‑D Audio Power Amplifier USB/I²S Interface Datasheet
Does the AD62550A support bus‑powered operation?
Yes, it supports both bus‑powered and self‑powered operation.
What is the total efficiency of the AD62550A?
The amplifier achieves 80 % efficiency at an 8 Ω load with a -1 dB 1 kHz sine‑wave input.