ASAHI KASEI
[AK5383]
AK5383
Enhanced Dual Bit ∆Σ 96kHz 24-Bit ADC
GENERAL DESCRIPTION
The AK5383 is a 24bit, 128x oversampling 2ch A/D Converter for professional digital audio systems. The
modulator in the AK5383 uses the new developed Enhanced Dual Bit architecture. This new architecture
achieves the wide dynamic range, while keeping much the same superior distortion characteristics as
conventional Single Bit way. The AK5383 performs 110dB dynamic range, so the device is suitable for
professional studio equipment such as digital mixer, digital VTR etc.
FEATURES
p Enhanced Dual Bit ADC
p Sampling Rate: 1kHz~108kHz
p Full Differential Inputs
p S/(N+D): 103dB
p DR: 110dB
p S/N: 110dB
p High Performance Linear Phase Digital Anti-Alias filter
• Passband: 0~21.768kHz(@fs=48kHz)
• Ripple: 0.001dB
• Stopband: 110dB
p Digital HPF & Offset Calibration for Offset Cancel
p Power Supply: 5V±5%(Analog), 3~5.25V(Digital)
p Power Dissipation: 210mW
p Package: 28pin SOP, VSOP
p AK5393 Pin compatible
SCLK
12
VREFL
GNDL
VCOML
AINL+
AINLZCAL
AINR+
AINRVCOMR
VREFR
GNDR
1
LRCK
FSYNC
14
SMODE1 SMODE2
13
16
11
2
15
Serial Output
Interface
Voltage
Reference
SDATA
3
4
Delta-Sigma
Modulator
5
6
25
24
Decimation
Filter
HPF
Delta-Sigma
Modulator
Decimation
Filter
HPF
19
HPFE
17
18
MCLK
DFS
26
28
27
23
VA
Voltage
Reference
22
AGND
Controller
21
BGND
9
CAL
M0049-E-03
10
RST
Calibration
SRAM
7
VD
8
DGND
2000/4
-1-
