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AK4436/AK4438: 6ch/8ch Advanced Audio D/A converter has been developed for multi-channel audio such as car amplifier.

2016-01-22 | Return

[Product Name]
AK4436VN, AK4438VN

[Title]
108dB 768kHz 32-bit 6ch/8ch Advanced D/A Converter

[Application]
Audio Amplifier for Cars, Car Audio, AV Receivers, Surround Sound Systems, CD/SACD Players,
Network Audio, Sound Bars/Plates, Audio Mixers

[Description]
There is an increasing need for high-resolution sound source playback in the car audio market, and system power consumption is getting reduced by corresponding 3.3V power supply. Asahi Kasei Microdevices Corporation (AKM) has developed 32-bit 6ch/8ch advanced audio D/A converters (DAC) that support 3V power supply. They are optimized for multi-channel audio systems in the aspects of sound quality, power consumption and characteristics. The AK4436/AK4438 realizes detailed sound expression with high resolution 32-bit processing by VELVET SOUND architecture that has been widely adopted by well-established high-end audio companies, and also achieves a low power consumption operation required by car audio systems.

This line-up including the AK4432, a 2ch DAC released June 2015, provides simple and optimal solution to any system by adopting TDM interface. This advanced DAC series is a single-ended output version of the premium DAC, AK445X series.

● Dynamic sound play back with large amount of playback information:

- AKMs VELVET SOUND architecture is utilized.
- By a low distortion technology, the AK4436/AK4438 achieves -91dB distortion, the best performance in the field as a DAC that has 108dB S/N performance.
- Out of Band Noise is greatly reduced by OSRD (Over Sampling Ratio Doubler) technology.
- IRD (Impulse Response Designed) filters are integrated with 32-bit processing to reproduces detailed natural sound.
- Five different digital filters types are selectable according to the user audio and system preferences.
- The digital input supports up to 768 kHz PCM, recreating high-resolution sound that is as close as possible to the original acoustic source.
- It is suitable for high-resolution sound source playback that is becoming popular with Network Audio, USB DACs and Car Audio Systems.

● Low Power Consumption
- The new device achieves low power consumption performance that is about 13mW per channel (AK4436VN: 79mW, AK4438VN: 102mW).

● System Extensibility
By adding 6ch and 8ch line-ups, AKM can provide the best D/A converter combination for audio amplifier for multiple audio applications such as audio amplifier for cars and AV receivers. The digital input supports TDM (Time Division Multiplexing) signals, realizing daisy chain connection and simplifying the design of multi-channel playback systems.

[Line-up]
● 3rd Generation 32-bit Advanced D/A Converter

Product Name	AK4438VN 　Advanced D/A Converter	AK4436VN 　Advanced D/A Converter	AK4432VT 　Advanced D/A Converter
● Number of Channel	8ch	6ch	2ch
● DR, S/N	108dB
● THD+N	-91dB
● Sampling Rate	8kHz to 768kHz		8kHz to 192kHz
● DSD Input	Not Supported
● Sound Color	Five Types 　32-bit 8-fold Digital Filters 　- Short Delay Sharp Roll-off, GD=5.8/fs 　- Short Delay Slow Roll-off, GD=4.8/fs 　- Sharp Roll-off 　- Slow Roll-off 　- Super Slow Roll-off		Four Types 　32-bit 8-fold Digital Filters 　- Short Delay Sharp Roll-off, GD=5.9/fs 　- Short Delay Slow Roll-off, GD=5.2/fs 　- Sharp Roll-off 　- Slow Roll-off
● Resolution	32-bit
● Output Method	Single-ended output with internal smoothing filter
● VELVET SOUND Technology	・Low-distortion technology ・OSRD（Over Sampling Ratio Doubler） technology		・Low-distortion technology
● Power Consumption	102mW	79mW	25.7mW
● Power Supply	Analog: 3.0 to 3.6V 　Digital: 3.0 to 3.6V
● Operation Temperature	-40 to105°C
● Package	32-pin QFN (5mm x 5mm)		16-pin TSSOP (4.4mm x 5mm)
● Sales Start	ES: Feb/2016 * 　Mass Production: Summer/2016 *		Available Now

Source：http://www.akm.com/