AKD5394A Datasheet, PDF (10/32 Pages) Asahi Kasei Microsystems – 24bit A/D converter for professional audio

ASAHI KASEI
[AKD5394A]
MEASUREMENT RESULTS
[Measurement condition]
• Measurement unit : Audio Precision System Two Cascade(AP2C) / ROHDE & SCHWARZ, UPD04 (R&S)
• MCLK
: 12.288MHz
• BICK
: 128fs for 48kHz, 64fs for 96kHz and 192kHz
• fs
: 48kHz, 96kHz, 192kHz
• BW
: 10Hz∼20kHz (fs=48kHz)
• Resolution
: 24bit
• Power Supply : VA=5V, VD=3.3V
• Interface
: DIT / Serial MUX
• Temperature : Room
1. VREF cap = 10µF, Measurement Unit = AP2C ; I/F = Optical
Parameter Input signal Measurement filter
fs
48kHz
BW
20kHz
S/(N+D) 1kHz, -1dB
-
106.0
1kHz, -20dB
-
98.1
1kHz, -60dB
-
57.3
DR
1kHz, -60dB
A-weighted
121.0
S/N
no signal
-
A-weighted
118.7
121.1
Results
96kHz
Fs/2 (=48kHz)
105.6
94.1
54.1
121.0
115.1
121.2
[dB]
2. VREF cap = 10µF, Meas. Unit = R&S ; I/F = Serial MUX
Parameter Input signal Measurement filter
Results
fs
192kHz
BW
80kHz
S/(N+D) 1kHz, -1dB
-
105.1
1kHz, -20dB
-
91.0
1kHz, -60dB
-
54.1
DR
1kHz, -60dB
A-weighted
119.0
S/N
no signal
-
111.5
A-weighted
120.3
[dB]
3. Example measurement, VREF cap=1000µF, Meas. Unit = AP2C; I/F = Optical,
Parameter Input signal Measurement filter
Results
fs
48kHz
BW
20kHz
S/(N+D) 1kHz, -1dB
-
111.1
DR
1kHz, -60dB
A-weighted
121.6
S/N
No signal
A-weighted
121.4
[dB]
<KM064804>
- 10 -
2005/05