Overview
The MAX98357AETE+ is a tiny, low-cost, digital pulse-code modulation (PCM) input Class D amplifier produced by Analog Devices Inc./Maxim Integrated. This amplifier offers industry-leading Class AB audio performance with the efficiency of a Class D amplifier. It is designed for ease of use, eliminating the need for an external MCLK signal and I2C programming, making it a streamlined solution for various audio applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 16-pin TQFN (3mm x 3mm x 0.75mm) |
| Supply Voltage | 2.5V to 5.5V |
| Output Power | 3.2W into 4Ω at 5V |
| Quiescent Current | 2.4mA |
| Efficiency | 92% (RL = 8Ω, POUT = 1W) |
| Output Noise | 22.8μVRMS (AV = 15dB) |
| THD+N | 0.013% at 1kHz |
| Sample Rates | 8kHz to 96kHz |
| Operating Temperature | -40°C to +85°C |
| Data Formats | I2S, Left-Justified, 8-channel TDM |
| Data Bits | 16/24/32-bit for I2S and Left-Justified, 16-bit or 32-bit for TDM |
Key Features
- Single-Supply Operation (2.5V to 5.5V)
- No MCLK Required
- Supports Left, Right, or (Left/2 + Right/2) Output
- Sophisticated Edge Rate Control Enables Filterless Class D Outputs
- High Wideband Jitter Tolerance (12ns typ) on BCLK and LRCLK
- Active Emissions-Limiting, Edge-Rate Limiting, and Overshoot Control Circuitry
- Filterless Spread-Spectrum Modulation Scheme
- Low RF Susceptibility Rejects TDMA Noise from GSM Radios
- Extensive Click-and-Pop Reduction Circuitry
- Robust Short-Circuit and Thermal Protection
Applications
- Single Li-ion Cell/5V Devices
- Smart Speakers
- Notebook Computers
- IoT Devices
- Gaming Devices (Audio and Haptics)
- Smartphones
- Tablets
- Cameras
Q & A
- What is the MAX98357AETE+?
The MAX98357AETE+ is a digital PCM input Class D amplifier designed for low-cost and high-performance audio applications.
- What are the supported data formats?
The MAX98357A supports I2S data, while the MAX98357B supports left-justified data. Both support 8-channel TDM data.
- What is the output power of the MAX98357AETE+?
The output power is 3.2W into a 4Ω load at 5V.
- What is the operating temperature range?
The operating temperature range is -40°C to +85°C.
- Does the MAX98357AETE+ require an external MCLK signal?
No, it does not require an external MCLK signal, reducing EMI and board coupling issues.
- What are the key features of the MAX98357AETE+?
Key features include single-supply operation, filterless Class D outputs, high jitter tolerance, and robust protection mechanisms.
- What are some common applications for the MAX98357AETE+?
Common applications include smart speakers, notebook computers, IoT devices, gaming devices, smartphones, tablets, and cameras.
- What is the quiescent current of the MAX98357AETE+?
The quiescent current is 2.4mA.
- How efficient is the MAX98357AETE+?
The efficiency is 92% at RL = 8Ω and POUT = 1W.
- What is the THD+N of the MAX98357AETE+ at 1kHz?
The THD+N is 0.013% at 1kHz.
