AK5394A Datasheet, PDF (1/24 Pages) Asahi Kasei Microsystems – Super High Performance 192kHz 24-Bit ADC

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
11
SCLK LRCK FSYNC
14 13
16
VREFL+ ¹
VREFL- ²
VCOML ³
4
AINL+
AINL- ⁵
6
ZCAL
25
AINR+
24
AINR-
26
VCOMR
28
VREFR+
VREFR- ²⁷
Voltage
Reference
Delta-Sigma
Modulator
Delta-Sigma
Modulator
Voltage
Reference
Serial Output
Interface
15
SDATA
Decimation
Filter
Decimation
Filter
Controller
HPF
19
HPFE
HPF
Calibration
SRAM
17
MCLK
18 _DFS0
20
DFS1
23
22
VA AGND
21
BGND
9
10
7
8
CAL
RSTN
VD
DGND
MS0137-E-01
-1-
2002/07