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-CSP30 package (2.645 x 2.545mm; 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 |
Output Type | Stereo/BTL |
Max. Output Power | 130mW (Mono Differential; 32 Ohm load) |
SNR, THD | 118.5dB, 0.007% (SE, 30mW, 32 Ohm load) |
ANC Performance | >30dB |
Supply Voltage | 1.4V to 1.8V |
Package | WL-CSP30 package (2.645mm x 2.545mm; 0.4mm pitch) |

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 | ||
---|---|---|---|---|
Datasheet | AS3418 Low Noise ANC Solution | English |
Notifications
Type | Description | Language | ||
---|---|---|---|---|
EoL Notification | AS1xxx, AS25xx, AS3xxx, AS73211, AS89020, SL900A, TMD4704 (issued 2020-Dec) | English |
Other information
Type | Description | Language | ||
---|---|---|---|---|
Block Diagram | AS3418 Block Diagram | English |