[AK5357]
AK5357
24Bit 96kHz
ΔΣ
ADC
GENERAL DESCRIPTION
The AK5357 is a stereo A/D Converter with wide sampling rate of 4kHz
∼
96kHz and is suitable for
multimedia audio system. The AK5357 achieves high accuracy and low cost by using Enhanced dual bit
ΔΣ
techniques. The AK5357 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 Karaoke, surround.
FEATURES
Stereo
ΔΣ
ADC
On-Chip Digital Anti-Alias Filtering
Single-ended Input
Digital HPF for DC-Offset cancel
S/(N+D): 88dB@5V, 86dB@3V for 48kHz
DR:
102dB@5V, 100dB@3V for 48kHz
S/N:
102dB@5V, 100dB@3V for 48kHz
Sampling Rate Ranging from 4kHz to 96kHz
Master Clock:
256fs/384fs/512fs/768fs (4kHz
∼
48kHz)
256fs/384fs
(48kHz
∼
96kHz)
Input level: TTL/CMOS selectable
Master / Slave Mode
Audio Interface: 24bit MSB justified / I
2
S selectable
Power Supply: 2.7
∼
5.5V
Ta =
−20 ∼
85°C (ET),
−40 ∼
85°C (VT),
−40 ∼
105°C (KT)
Small 16pin TSSOP Package
AK5381 Pin-compatible
VA AGND
VD DGND
MCLK
Clock Divider
AINL
ΔΣ
Modulator
ΔΣ
Modulator
Voltage Reference
Decimation
Filter
Decimation
Filter
Serial I/O
Interface
LRCK
SCLK
AINR
SDTO
VCOM
CKS2 CKS1 CKS0
PDN
DIF
MS0294-E-03
-1-
2009/03
AKM [ ASAHI KASEI MICROSYSTEMS ]
