ASAHI KASEI
[AK5394A]
AK5394A
Super High Performance 192kHz 24-Bit
∆Σ
ADC
GENERAL DESCRIPTION
The AK5394A is a 24bit, 192kHz sampling 2ch A/D Converter for professional digital audio systems. The
modulator in the AK5394A uses the new developed advanced multi bit architecture. This new architecture
achieves the wide dynamic range and wide bandwidth, while keeping superior distortion characteristics.
The AK5394A performs 123dB dynamic range, so the device is suitable for professional studio equipment
such as digital mixer, digital VTR etc. The operating voltages support analog 5V and digital 3.3V, so it is
easy to I/F with 3.3V logic IC.
FEATURES
128x Oversampling
New advanced multi bit Architecture ADC
Sampling Rate: 1kHz
∼
216kHz
Full Differential Inputs
S/(N+D): 110dB
DR: 123dB
S/N: 123dB
High Performance Linear Phase Digital Anti-Alias filter
•
Passband: 0
∼
21.768kHz(@fs=48kHz)
•
Ripple: 0.001dB
•
Stopband: 120dB
Digital HPF & Offset Calibration for Offset Cancel
Power Supply: 5V±5%(Analog), 3
∼
5.25V(Digital)
Power Dissipation: 665mW
Package: 28pin SOP
AK5392/3 Semi-Pin Compatible
SMODE1 SMODE2
12
VREFL+
VREFL-
1
2
11
SCLK LRCK
14
13
FSYNC
16
15
SDATA
Voltage
Reference
Serial Output
Interface
VCOML 3
4
AINL+
5
AINL-
6
ZCAL
25
AINR+
24
AINR-
26
VCOMR
28
VREFR+
27
VREFR-
23
VA
Delta-Sigma
Modulator
Decimation
Filter
HPF
19
HPFE
17
Delta-Sigma
Modulator
Decimation
Filter
MCLK
DFS0
DFS1
HPF
18
20
Voltage
Reference
22
AGND
21
BGND
Controller
9
CAL
10
RSTN
Calibration
SRAM
7
VD
8
DGND
MS0137-E-03
-1-
2005/05
AKM [ ASAHI KASEI MICROSYSTEMS ]
