AKD4120_06 Datasheet, PDF (40/47 Pages) Asahi Kasei Microsystems – Sample Rate Converter with Mixer and Volume

ASAHI KASEI
[AKD4120]
MEASUREMENT RESULTS
[Measurement condition]
• Measurement unit : Audio Precision System two Cascade
• MCLK
: 256fs
• BICK
: 64fs
• fs
: fsin=44.1kHz, fsout=48kHz
• BW
: 20Hz∼20kHz
• Resolution
: 20bit
• Power Supply : VDD=3.3V
• Interface
: DIR, DIT
• Temperature : Room
fsin=44.1kHz, fsout=48kHz
Parameter Input signal
S/(N+D) 1kHz, 0dB
DR
1kHz, -60dB
Measurement filter
20kLPF
20kLPF, A-weighted
Lch
113dB
115dB
Rch
113dB
115dB
„ Plots
[Measurement condition]
• Measurement unit: Audio Precision System two Cascade
• MCLK
: 256fs
• BICK
: 64fs
• fs
: 44.1kHz, 48kHz
• BW
: 20Hz∼20kHz (fsin=44.1kHz, fsout=48kHz)
• Resolution
: 20bit
• Power Supply : VDD=3.3V
• Interface
: DIR, DIT
• Temperature : Room
Figure 7. FFT (1kHz, 0dBFS input)
AK4120 sample rate converrt FFT (fsin=44.1kHz, fsout=48kHz; fin=1kHz, 0dBFS input)
FF T po ints=16 384 , Avg =8, window=Equirip ple
+0
-10
-20
-30
-40
-50
-60
-70
d
-80
B
-90
F
S
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
Hz
las t.at2c
Figure.7. FFT(fsin=44.1kHz, fsout=48kHz; fin=1kHz, 0dBFS input)
10k
20k
<KM066802>
- 40 -
2006/12