Harman Kardon AVR130 - ADC Description and Features; AK5381 ADC Description and Features

ASAHI KASEI
AKM CONFIDENTIAL [AK5381]
Rev.0.4 2002/08
- 1 -
GENERAL DESCRIPTION
The AK5381 is a stereo A/D Converter with wide sampling rate of 4kHz ∼ 96kHz and is suitable for
High-end audio system. The AK5381 achieves high accuracy and low cost by using Enhanced dual bit
∆Σ techniques. The AK5381 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 many systems like
music instrument and AV receiver.
FEATURES
 Stereo ∆Σ ADC
 On-Chip Digital Anti-Alias Filtering
 Single-ended Input
 Digital HPF for DC-Offset cancel
 S/(N+D): 96dB@5V for 48kHz
 DR: 106dB@5V for 48kHz
 S/N: 106dB@5V for 48kHz
 Sampling Rate Ranging from 4kHz to 96kHz
 Master Clock:
256fs/384fs/512fs/768fs (∼ 48kHz)
256fs/384fs (∼ 96kHz)
 Audio Interface: Master or Slave Mode selectable
 Input level: TTL/CMOS selectable
 Output format: 24bit MSB justified / I
2
S selectable
 Power Supply: 4.5 ∼ 5.5V (VA)
2.7 ∼ 5.5V (VD at 48kHz)
3.0 ∼ 5.5V (VD at 96kHz)
 Ta = -40 ∼ 85°C
 Small 16pin TSSOP Package
 AK5380 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
PDN
CKS0
24Bit 96kHz ∆Σ ADC
AK5381
= Preliminary =
AVR130 harman/kardon
91