ASAHI KASEI

[AK5380]

MS0100-E-01

2001/7

- 1 -

GENERAL DESCRIPTION

The AK5380 is a stereo A/D Converter with wide sampling rate of 4kHz

∼96kHz and is suitable for High-

end audio system. The AK5380 achieves high accuracy and low cost by using Enhanced dual bit

∆Σ

techniques. The AK5380 requires no external components because the analog inputs are single-ended.

The audio interface has two formats (MSB justified, I

instrument and AV receiver.

FEATURES

o Stereo

∆Σ ADC

o On-Chip Digital Anti-Alias Filtering

o Single-ended Input

o Digital HPF for DC-Offset cancel

o S/(N+D):

96dB@5V for 48kHz

o DR:

106dB@5V for 48kHz

o S/N:

106dB@5V for 48kHz

o Sampling Rate Ranging from 4kHz to 96kHz

o Master Clock:

256fs/384fs/512fs/768fs (

∼48kHz)

256fs/384fs

(

∼96kHz)

o Input level: TTL/CMOS selectable

o Output format: 24bit MSB justified / I

o Power Supply:

4.5

∼5.5V (VA)

2.7

∼5.5V (VD at 48kHz)

4.5

∼5.5V (VD at 96kHz)

o Ta=-40

∼85°C

o Small 16pin TSSOP Package

o AK5353 Pin-compatible

∆Σ

Modulator

MCLK

AINL

LRCK

SCLK

SDTO

DIF

VCOM

Clock Divider

AINR

AGND

VA

Decimation

Filter

Serial I/O

Interface

Voltage Reference

TTL

DGND

VD

TST

∆Σ

Modulator

Decimation

Filter

PDN

96kHz 24Bit

∆Σ ADC with Single–ended Input

AK5380