AKD4551 Datasheet, PDF (8/17 Pages) Asahi Kasei Microsystems – EVALUATION BOARD REV.C FOR AK4551

ASAHI KASEI
[AKD4551]
MEASUREMENT RESULTS
[Measurement condition]
• Measurement unit
• MCLK
• SCLK
• fs
• Bit
• Power Supply
• Interface
• Temperature
: Audio Precision, System two
: 256fs
: 64fs (ADC, DAC)
: 32kHz, 44.1kHz, 48kHz
: 20bit
: VDD = VP = 2.5V, VD = 4.0V
: DIT/DIR
: Room
1. ADC
VDD
2.5V
Parameter
S/(N+D) (-0.5dBFS)
D-Range (-60dBFS)
S/N (0 data)
Measured Filter
20kHz LPF
20kLPF + A-weighted
20kLPF + A-weighted
fs = 32kHz
84.3 dB
88.5 dB
88.5 dB
fs = 44.1kHz
79.5 dB
89.3 dB
89.3 dB
fs = 48kHz
79.5 dB
89.4 dB
89.4 dB
2. DAC
VDD
2.5V
Parameter
S/(N+D) (0dBFS)
D-Range (-60dBFS)
S/N (0 data)
Measured Filter
20kHz LPF
22kLPF + A-weighted
22kLPF + A-weighted
fs = 32kHz
88.6 dB
92.5 dB
92.5 dB
fs = 44.1kHz
87.9 dB
92.8 dB
93.0 dB
fs = 48kHz
87.5 dB
92.9 dB
93.0 dB
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