SM5846AP_06 Datasheet, PDF (6/36 Pages) Nippon Precision Circuits Inc – Multi-function Digital Filter

SM5846AP
Deemphasis Filter Characteristics (Normal-speed Sampling)
Parameter
Sampling frequency (fs)
Passband bandwidth
Deviation from ideal
characteristics
Attenuation
Phase
32kHz
0 to 14.5kHz
Rating
44.1kHz
0 to 20.0kHz
±0.01dB
0 to 6°
Deemphasis passband characteristic (logarithmic scale)
The phase traces are from top to bottom fs = 32/44.1/48kHz, respectively.
0
2
Phase
4
6
8
Attenuation
10
48kHz
0 to 21.7kHz
0
−20
−40
−60
10 20
50 100 200 500 1k 2k
Frequency [Hz]
5k 10k 20k
Deemphasis passband characteristic (linear scale)
The phase traces are from top to bottom fs = 32/44.1/48kHz, respectively.
0
2
4
6
8
10
Phase
0
−20
−40
−60
Attenuation
0
4k
8k
12k
16k
20k 22k 24k
Frequency [Hz]
SEIKO NPC CORPORATION —6