AK4962, Industry’s Leading Audio Performance DSP with Integrated CODEC and Digital Noise Cancelling.

Product Name AK4962ECB
(Product: Audio & Voice> Audio Components> Advanced Audio)

Title 32-bit 2ch Advanced Audio DAC, 32-bit 2ch DAC, 32-bit 4ch ADC with
Microphone/Headphone Receivers, Line-amplifier, Audio/Voice DSP, Asynchronous SRC and SLIMbus I/F.

Application Portable Audio (Smartphones, Tablets, Portable Music Players and etc.)

description

The portable audio market is demanding a premium sound quality solution because of the growing availability of high-resolution audio content. Improvements in video recording resolution also increase the demand for high-resolution sound recording quality. A leading supplier of high sound quality potable audio devices, Asahi Kasei Microdevices Corporation (AKM) has developed the AK4962, an advanced audio CODEC with DSP. This single chip solution integrates sound quality techniques using AKMs high-end audio knowledge, audio recording techniques from digital still/video cameras and hands-free techniques for automotive applications of AKM. 

The AK4962 is the new, higher performing solution of the AK4961 that has been adopted by many potable audio products mainly smartphones since it was launched in 2014. The AK4962 enhances high quality sound technologies of the AK4961 and has newly added digital active noise cancelling function.

The AK4962 is a high performance with incredible sound quality audio CODEC for portable devices based on AKM’s VELVET SOUND architecture that has been widely adopted by well-established high-end audio companies. For sound processing, the AK4962 is capable of various functions for mobile applications such as dual Tx/Rx noise suppression, echo canceling and hands-free, reducing the load to the main processor while improving battery consumption. 

● Reduce Ambient Noise for Headphones with Digital Active Noise Cancelling Function

The AK4962 provides clear sound experiences even in a noisy environment with a headphone that have microphones for noise collecting. This function works as digital compensations, realizing more efficient noise cancelling when compared to traditional analog implementation

● Recording Function Provides Live Acoustic High Quality Sound

The AK4962 integrates a low-noise and low-power consumption microphone amplifier and microphone power supply, realizing high quality realistic sound recording using AKM’s original sound processing by the internal DSP.

● Best Playback Sound Quality

The AK4962 achieves -106 dB THD+N and 125dB SNR, the top level performances in D/A converters with headphone amplifier for portable devices. It has improved reproducibility of the original sound by achieving under -100dB THD+N performances in all audible bands. 

It is capable of detailed sound expression with AKM’s original switched capacitor filter and OSR Doubler technology that are integrated into premium D/A converters for high-end audio products. In addition, four sound colors are available by 32-bit digital filters. They are selectable according to the user audio and system preferences.

Features

AK4962ECB Advanced Audio DSP CODEC
32-bit Advanced Audio Stereo D/A converter (4 types of Digital Filters)
Ground Reference Class-G Stereo Headphone Amp (THD+N: -106dB, S/N: 125dB)
4ch Low-power Consumption A/D converter (2 types of Digital Filters for sound colors)
Low-noise Microphone Amplifier in PCM Recorder Class
Two Low-Jitter PLLs Correspond Various Clocks
Crystal Oscillator
Impedance Detection Function for Jacks/Headsets/Buttons/Headphones
4 Asynchronous SRCs
Active Noise Cancelling Function (ANC)
SLIMbus & Audio Interface
Audio/Voice DSP with Hardware Accelerator	- Noise Suppression for Single/ Dual Microphone  - Full Duplex Hands-free Echo Canceller  - Improved Receiving Voice Articulation   - 5-band Equalizer, Dynamic Range Control, ALC and Wind Noise Reduction Filter
Microcontroller Interface	SPI/ I2C (1MHz) & SLIMbus
Power Supply	- Analog: 1.7 to 1.9V  - Digital Core: 1.14 to 1.26V  - Digital Interface: 1.65 to 3.6V
Operational Temperature Range	-40 to 85°C
Package	125-pin CSP
>> To obtain more information about the AK4962, please visit here.

Source: http://www.akm.com/