ASAHI KASEI [AK5353]
M0067-E-00 1999/06
- 1 -
GENERAL DESCRIPTION
The AK5353 is a stereo A/D Converter with wide sampling rate of 4kHz∼96kHz and is suitable for
multimedia audio system. The AK5353 achieves high accuracy and low cost by using Enhanced dual bit
∆Σ techniques. The AK5353 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
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): 84dB@5V, 80dB@3V for 48kHz
o DR: 96dB@5V, 92dB@3V for 48kHz
o S/N: 96dB@5V, 92dB@3V for 48kHz
o Sampling Rate Ranging from 4kHz to 96kHz
o Master Clock:
256fs/384fs/512fs (∼48kHz)
256fs/384fs (∼96kHz)
o Low Power Dissipation: 70mW
o Small 16pin TSSOP Package
o Power Supply: 2.7∼5.5V (∼48kHz)
4.5∼5.5V (∼96kHz)
o Ta=-40∼85°C
o Input level: TTL/CMOS selectable
o Output format: 24bit MSB justified / I
2
S selectable
∆Σ
Modulator
MCLK
AINL
LRCK
SCLK
SDTO
PD
DIF
VCOM
Clock Divider
AINR
AGNDVA
Decimation
Filter
Serial I/O
Interface
Voltage Reference
TTL
DGNDVD
TST
VREF
∆Σ
Modulator
Decimation
Filter
96kHz 24Bit ∆Σ ADC with Single–ended Input
AK5353