AS3418 - Active Noise Cancellation
Enhanced ultra-small ANC speaker driver
Features
- Integrated music bypass switch
- Low power consumption (<10mW@1.8V)
- EEPROM memory for standalone mode
- 118.5dB signal to noise ratio (Line->HPH)
- I2C control interface
- Mono differential line input support
- TWS Hybrid ANC Support
- WL-CSP25 2.45x2.93mm package; 0.4mm pitch
Benefits
- Longest battery lifetime
- Smallest PCB size (less than 0.5cm²)
- Best-in-class ANC performance
- Lowest hiss noise level
- ANC level control
- Ambient noise monitor mode
Product parameters
| Function | Receive path |
|---|---|
| Topology | Feedforward, Feedback, Hybrid |
| Output Type | Stereo/BTL |
| Max. Output Power (BTL, 1.8V, 32 Ohm) [mW] | 90 |
| SNR, THD (SE, 34mW, 32 Ohm) [dB] | 118.5 |
| ANC Performance [dB] | >30 |
| Supply Voltage [V] | 1.4 to 1.8 |
| Package | WL-CSP25 (2.45x2.93) |
General Description
Analog ANC solution
The AS3418 is ideally suited to enable ANC for true wireless earbuds due to its smallest size, lowest power consumption and best-in-class ANC. It improves the quality of music listening or phone conversations by reducing background ambient noise (>30dB). Because of its small system footprint, manufacturers are empowered to build ANC in very small and aesthetic form factors.
This product suits for the following applications:
- TrueWireless ANC earbuds
- Mono Earpieces
- Stereo Earpieces
- USB-C Headsets
- MFi Headsets
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| AS3418 Evaluation Kit | Application Board | AS3418 Evaluation Kit |
Technical Documents
| Type | Description | Language | |
|---|---|---|---|
| Block Diagram | AS3418 Block Diagram | English |
Related Boards
AS3418 Evaluation Kit
AS3418 Evaluation Kit
The AS3418 evaluation kit helps to accelerate time to market for stereo ANC headsets based on Feedforward topology. Each kit is bundled with a user-friendly USB communication interface that allows easy communication to the AS3418 evaluation board. The software as well as the USB communication interface comes conveniently in one box with the evaluation board.
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The AS3412 is targeting feed-forward topology and is able to effectively reduce ambient noise up to 3 kHz. Used in a true wireless ear piece AS3412 even enables state of the art hybrid noise cancellation.
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