Datasheet > AKM4550

AKM4550

更新时间： 2024-10-01 22:05:35

品牌	Logo	应用领域
AKM		/
页数	文件大小	规格书
15页	104K
描述
LOW POWER & SMALL PACKAGE 16BIT CODEC

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中文翻译

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数据手册

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AKM4550 数据手册

ASAHI KASEI

[AK4550]

AK4550

Low Power & Small Package 16bit ∆Σ CODEC

GENERAL DESCRIPTION

The AK4550 is a low voltage 16bit A/D & D/A converter for portable digital audio system. In the AK4550,

the loss of accuracy form clock jitter is also improved by using SCF techniques for on-chip post filter.

Analog signal input/output of the AK4550 are single-ended, therefore, any external filters are not required.

The AK4550 is suitable for portable digital audio system, as the AK4550 is lower power dissipation and a

smaller package than AK4518.

FEATURES

o HPF for DC-offset cancel (fc=3.4Hz)

o Single-ended ADC

- S/(N+D): 82dB@VDD=2.5V

- Dynamic Range, S/N: 89dB@VDD=2.5V

o Single-ended DAC

- Digital de-emphasis for 32kHz, 44.1kHz, 48kHz sampling

- S/(N+D): 85dB@VDD=2.5V

- Dynamic Range, S/N: 92dB@VDD=2.5V

o Audio I/F format: MSB First, 2’s Compliment (AK4518 compatible)

- ADC: 16bit MSB justified

- DAC: 16bit LSB justified

o Input/Output Voltage: 0.6 X VDD (=1.5Vpp@VDD=2.5V)

o High Jitter Tolerance

o Sampling Rate: 8kHz to 50kHz

o Master Clock: 256fs or 384fs or 512fs

o Power Supply: 2.3 to 3.6V

o Low Power Supply Current: 10mA

o Ta = -40 to 85°C

o Very Small Package: 16pin TSSOP

VDD

VSS

Clock

Divider

MCLK

∆Σ

Decimation

Filter

AINL

AINR

Modulator

LRCK

SCLK

∆Σ

Decimation

Filter

Modulator

SDTO

SDTI

Serial I/O

Interface

VCOM

Common Voltage

DEM0

DEM1

∆Σ

AOUTL

LPF

Modulator

Interpolator

PWDA

PWAD

∆Σ

AOUTR

LPF

Modulator

Interpolator

M0068-E-01

2000/4

- 1 -

12 3 4 5 6 7...15

中文翻译

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