Audio

ams

ams offers a wide range of standard products for audio applications. This portfolio includes dedicated ICs for the digital noise reduction in headphone applications, high-end audio codec for portable media player (audio codec, microphone-in, power management), digital high-efficiency audio amplifier (Class G & H) and audio-appropriate rail-to-rail amplifiers.

 

Active Noise Cancellation

In today's urban environment, environmental noise increases continuously. The desire for unadulterated audio pleasure in this environment increases constantly. Whether FF (feed forward) or FB (feed back), with or without signal improvement / enhancement, or for mono applications, ams ANC (active noise cancellation) products offer a solution.

Product Description
AS3400 Single channel (differential) ANC solution for Accessories
AS3410 Feedforward ANC solution for accessories
AS3412 Ultra small ANC Speaker Driver
AS3415 Active noise cancellation solutions for stereo headsets
AS3420 Mono bluetooth ANC solution
AS3421 Low power ambient noise cancellation speaker driver
AS3422 Low power ambient noise cancellation speaker driver
AS3430 Feedback ANC solution for accessories
AS3435 Active noise cancellation solutions for stereo headsets
AS3501 Feedforward ANC solution for embedded Systems
AS3502 Feedback ANC solution for embedded Systems

 


 

Audio Codecs

ams offers highly integrated solutions for typical analog functions for the development of devices in mobile entertainment sector. The AS35xx family integrates: microphone path, audio codec and power units (power supply, Li-Ion battery charging circuits & audio amplifier).

Product Description
AS3510 Audio front-end for mobile music
AS3515 Stereo audio codec with system power management
AS3517 Stereo audio codec with advanced system power management
AS3543 High end stereo audio codec with system power Management

 


 

Audio Amplifiers

As a manufacturer of high-efficiency products in the power management sector, ams offers digital headphone class H & class G topology amplifiers. This combines the sound quality of a traditional class AB topology with required power efficiency in e.g. mobile devices. Thanks to a differential input for audio signals, a robust solution against ground noise is guaranteed. An I2C interface easily enables regulation of the digital output level and integration into existing applications.

Product Description
AS3560 Class G, 30mW speaker driver
AS3561 Class H, 30mW speaker Driver

 


 

Feature Phones

ams provides very flexible analog telephone ICs in CMOS which provide DC and AC line adaption, soft clipping, line loss compensation, volume control, last number redial and one-touch memories for a/b (Tip/Ring) line powered basic telephones and high performance hands-free telephones.

Product Description
AS2522B Speakerphone IC with a serial interface to standard CPU
AS2523/24 Speakerphone IC with a serial and parallel Interface
AS2525 Single-chip speakerphone IC with a serial interface to a EEPROM
AS2533 Single-chip telephone IC with line interface, speech circuit, dialler and ringer
AS2534 Single-chip telephone IC with line interface, speech circuit, dialler and ringer
AS2535 Single-chip telephone IC with line interface, speech circuit, dialler and ringer
AS2536 Single-chip telephone IC with line interface, speech circuit, dialler and ringer
AS2540 Remote controlled single-chip telephone IC with a 2-wire serial interface

 

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