ASAHI KASEI [AK5393]
M0038-E-04 2000/4
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GENERAL DESCRIPTION
The AK5393 is a 24bit, 128x oversampling 2ch A/D Converter for professional digital audio systems. The
modulator in the AK5393 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 AK5393 performs 117dB 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): 105dB
p DR: 117dB
p S/N: 117dB
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: 470mW
p Package: 28pin SOP
p AK5392 Pin compatible
LRCK
VREFL
GNDL
SCLKSMODE1 FSYNC
Serial Output
Interface
SMODE2
DGNDVA AGND BGND CAL
RST
VD
Controller
SDATA
MCLK
DFS
HPFE
ZCAL
AINR-
GNDR
Delta-Sigma
Modulator
Delta-Sigma
Modulator
Voltage
Reference
Voltage
Reference
Decimation
Filter
Decimation
Filter
HPF
HPF
Calibration
SRAM
VCOML
AINL+
AINL-
AINR+
VCOMR
VREFR
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Enhanced Dual Bit ∆Σ 96kHz 24-Bit ADC
AK5393