Overview
The MAX98357AEWL+T is a tiny, low-cost, digital pulse-code modulation (PCM) input Class D amplifier produced by Analog Devices Inc./Maxim Integrated. This amplifier is designed to provide industry-leading Class AB audio performance with the efficiency of Class D amplifiers. It is highly versatile and easy to use, eliminating the need for I2C programming and external MCLK signals, which simplifies the design and reduces EMI and board coupling issues.
Key Specifications
| Parameter | Value |
|---|---|
| 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 |
| 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 |
| Package | 9-pin WLP (1.345mm x 1.435mm x 0.64mm) |
| Operating Temperature | -40°C to +85°C |
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 PSRR (77dB at 1kHz)
- Low RF Susceptibility Rejects TDMA Noise from GSM Radios
- Extensive Click-and-Pop Reduction Circuitry
- Robust Short-Circuit and Thermal Protection
- Available in Space-Saving Packages: 9-pin WLP and 16-pin TQFN
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 MAX98357AEWL+T?
The MAX98357AEWL+T is a tiny, low-cost, digital pulse-code modulation (PCM) input Class D amplifier.
- What are the supported data formats?
The MAX98357AEWL+T supports I2S, Left-Justified, and 8-channel TDM data formats.
- What is the output power of the MAX98357AEWL+T?
The MAX98357AEWL+T can deliver up to 3.2W into a 4Ω load at 5V.
- Does the MAX98357AEWL+T require an external MCLK signal?
No, the MAX98357AEWL+T does not require an external MCLK signal, which reduces EMI and board coupling issues.
- What are the supported sample rates?
The MAX98357AEWL+T supports sample rates between 8kHz and 96kHz.
- What is the quiescent current of the MAX98357AEWL+T?
The quiescent current of the MAX98357AEWL+T is 2.4mA.
- What are the key features of the MAX98357AEWL+T's digital audio interface?
The digital audio interface is highly flexible, supports various data formats, and has a wideband jitter tolerance of 12ns typ on BCLK and LRCLK.
- What are the common applications of the MAX98357AEWL+T?
The MAX98357AEWL+T is commonly used in smart speakers, notebook computers, IoT devices, gaming devices, smartphones, tablets, and cameras.
- What is the operating temperature range of the MAX98357AEWL+T?
The operating temperature range of the MAX98357AEWL+T is -40°C to +85°C.
- What packages are available for the MAX98357AEWL+T?
The MAX98357AEWL+T is available in 9-pin WLP and 16-pin TQFN packages.
