AS3412 Active Noise Cancellation
Ultra small ANC speaker driver
Features
- 30dB noise reduction achievable
- Integrated bypass switches
- Up to 34mW stereo output power
- Full digital control
- Support of feedforward topology
- WL-CSP 2.2x2.2mm package; 0.4mm pitch
Benefits
- No mechanical switch for passive playback
- Reduced hiss noise level
- Ultra small PCB size
Product parameters
| Function | Receive path |
|---|---|
| Topology | Feedforward |
| Output Type | Stereo/BTL |
| Max. Output Power | 50mW mono differential @16 Ohm load; 34mW mono differential @32 Ohm load |
| SNR, THD | >112dB, 0.008% (single ended, 10mW, 32 Ohm load) |
| ANC Performance | >30dB |
| Supply Voltage | 1.6V to 1.8V |
| Package | WL-CSP25 (2.2x2.2) |
General Description
Analog ANC solution
Active Noise Cancellation technology maximizes the end-user experience in today's advanced world of mobile communications, enabling crystal clear sound during phone conversations or music listening regardless of the surrounding environment noise.
A highly integrated system in combination with lowest power consumption on the market plus a cost-effective price model makes the AS3412 ideally suited for smartphones or other mobile devices.
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.
Not Recommended for New Designs
ams AG is discontinuing production of this device. Final lifetime buy order must be placed by June 30, 2021. Please contact your local sales representative for further information.
This product suits for the following applications:
- Mobile accessory
- Stereo on-ear headsets
- Stereo earpieces
- Multimedia devices
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| AS3412EvalKit | Application Board | Evaluation Kit for AS3412 |
Technical Documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | Document version 1-00 | English |
Notifications
| Type | Description | Language | ||
|---|---|---|---|---|
| EoL Notification | AS1xxx, AS25xx, AS3xxx, AS73211, AS89020, SL900A, TMD4704 (issued 2020-Dec) | English | ||
| Product Change Notification | CN43-2020 (issued 2020-Aug) | English |
Other Information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | AS3412 Block Diagram | English | ||
| Factsheet | Active Noise Cancellation | English |
Related Boards
Evaluation Kit for AS3412
AS3412EvalKit
The AS3412 Evaluation Kit helps to accelerate time to market for stereo ANC headsets based on feedforward topology. User-friendly I2C communication interface is assembled on the AS3412 evaluation board. The technical documentation and the software comes conveniently in one box with the evaluation board.
Please note that ams AG is discontinuing production of AS3412.
Related Products
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Not Recommended for New Designs
ams AG is discontinuing production of this device. Final lifetime buy order must be placed by June 30, 2021. Please contact your local sales representative for further information.
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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.