ASAHI KASEI [AK5359]
MS0428-E-00 2005/09
- 1 -





GENERAL DESCRIPTION
The AK5359 is a stereo A/D Converter with wide sampling rate of 8kHz ∼ 216kHz and is suitable for
consumer to professional audio system. The AK5359 achieves high accuracy and low cost by using
Enhanced dual bit ∆Σ techniques. The AK5359 requires no external components because the analog
inputs are single-ended. The audio interface has two formats (MSB justified, I
2
S) and can correspond to
various systems like DTV, DVR and AV Receiver.

FEATURES
† Linear Phase Digital Anti-Alias Filtering
† Single-ended Input
† Digital HPF for DC-Offset cancel
† S/(N+D): 94dB
† DR: 102dB
† S/N: 102dB
† Sampling Rate Ranging from 8kHz to 216kHz
† Master Clock:
256fs/384fs/512fs/768fs (8kHz ∼ 54kHz)
256fs/384fs (54kHz ∼ 108kHz)
256fs/384fs (108kHz ∼ 216kHz)
† Input level: CMOS
† Master / Slave Mode
† Audio Interface: 24bit MSB justified / I
2
S selectable
† Power Supply: 4.5 ∼ 5.5V (Analog), 3.0 ∼ 5.5V (Digital)
† Ta = −20 ∼ 85°C (ET), −40 ∼ 85°C (VT)
† Small 16pin TSSOP Package
† AK5357/58/81 Pin-compatible

∆Σ
Modulator
MCLK
AINL
LRCK
SCLK
SDTO
DIF
VCOM
Clock Divider
AINR
AGNDVA
Decimation
Filter
Serial I/O
Interface
Voltage Reference
CKS1
DGNDVD
CKS2
∆Σ
Modulator
Decimation
Filter
PDNCKS0


24-Bit 192kHz ∆Σ ADC
AK5359