AK5357_09 Datasheet, PDF (1/20 Pages) Asahi Kasei Microsystems – 24Bit 96kHz ΔΣ ADC

[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, I²S) 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 / I²S 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
AINL
AINR
VCOM
ΔΣ
Modulator
ΔΣ
Modulator
Voltage Reference
Decimation
Filter
Decimation
Filter
Clock Divider
Serial I/O
Interface
LRCK
SCLK
SDTO
CKS2 CKS1 CKS0
PDN
DIF
MS0294-E-03
-1-
2009/03