ASAHI KASEI [AK5394A]
MS0137-E-01 2002/07
- 1 -
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
LRCK
VREFL+
VREFL-
SCLKSMODE1 FSYNC
Serial Output
Interface
SMODE2
DGNDVA AGND BGND CAL RSTN VD
Controller
SDATA
MCLK
DFS0
HPFE
ZCAL
AINR-
VREFR-
Delta-Sigma
Modulator
Voltage
Reference
Decimation
Filter
HPF
HPF
Calibration
SRAM
VCOML
AINL+
AINL-
AINR+
VCOMR
VREFR+
12 11 14 13 16
15
19
17
18
87109212223
27
28
26
24
25
6
5
4
3
2
1
DFS1
20
Delta-Sigma
Modulator
Voltage
Reference
Decimation
Filter
AK5394A
Super High Performance 192kHz 24-Bit ∆Σ ADC