مدار مجتمع (آی سی) آی‌سی جمع‌آوری داده ای‌دی‌سی و دی‌ای‌سی کاربرد ویژه

AKM AK4458VN

Manufacturer	AKM
Mfr. Part Number	AK4458VN
Electland Part Code	702439
Electland Part Number	NYE_AK4458VN
Category	ADCs/DACs - Special Purpose
Description	DAC, Audio 32 b 768k DSD, I2S 48-QFN (7x7)

Product Attributes

Category	Integrated Circuits (ICs) Data Acquisition ADCs/DACs - Special Purpose
type	DAC, Audio
Number of Channels	8
Resolution (Bits)	32;768kHz
Sampling Rate (Per Second)	768k
Data Interface	DSD, I2S
Voltage Supply Source	Analog and Digital
Voltage - Supply	1.7V~3.6V;3V~5.5V
Operating Temperature	-40℃~+105℃
Mounting Type	Surface Mount
Package / Case	48-VFQFN Exposed Pad
Supplier Device Package	48-QFN (7x7)
interface	I2S
Features	Digital filtering;Differential output
Quiescent Current	1uA
ChipType	Audio Decoder
Packaging	QFN-48(7x7)
ReachStatus	REACH Unknown
RohsStatus	ROHS3 Compliant
MoistureSensitivityLevel	2 (1 Year)
ExportControlClassNumber	EAR99
HtsusCode	8542.39.0050
Weight	0.0005g

Introduction

The AK4458 is a 32-bit 8ch Premium DAC, which achieves industry’s best low distortion characteristics by a newly developed low distortion technology. It corresponds to a 768kHz PCM input and an 11.2MHz DSD input at maximum, suitable for play backing high resolution audio sources that are becoming widespread in network audios, USB-DACs and Car Audio Systems. In addition, “OSR-Doubler” technology is newly adopted, making the AK4458 capable of supporting wide range signals and achieving low out-of-band noise while realizing low power consumption. Moreover, the AK4458 has five types of 32-bit digital filters, realizing simple and flexible sound making in wide range of applications.

Features

DR, S/N: 115dB
THD+N: -107dB
256x Over sampling (OSR - Doubler)
Sampling Rate: 8kHz  768kHz
32Bit 8x Digital Filter - Ripple: 0.0032dB, Attenuation: 80dB (Sharp Roll-Off Filter Setting) - Five Types of High Quality Sound Filter Option - Sharp Roll-Off Filter - Slow Roll-Off Filter - Short Delay Sharp Roll-Off Filter (GD = 5.8/fs) - Short Delay Slow Roll-Off Filter [GD = 4.8/fs] - Super Slow Roll-Off Filter
High Tolerance to Clock Jitter
Low Distortion Differential Output
DSD data input
Daisy Chain
Digital De-emphasis for 32, 44.1, 48kHz sampling
Soft Mute
Digital Attenuator (255 levels and 0.5dB step)
I/F Format: - 24/32bit MSB justified - 16/20/24/32bit - LSB justified - I2S - DSD - TDM
3-wire Serial and I2C μP I/F
Master Clock: - 30kHz ~ 32kHz: 1152fs - 30kHz ~ 54kHz: 512fs or 768fs - 30kHz ~ 108kHz: 256fs or 384fs - 108kHz ~ 216kHz: 128fs or 192fs ~ 384kHz: 64fs or 128fs ~ 768kHz: 64fs
Digital Input Level: CMOS
Power Supply: - TVDD = 1.7 ~ 3.6V - AVDD = 3.0 ~ 5.5V
Supporting 105°C Temperature (Exposed pad is connected to ground)
Package: 48-pin QFN