SM5846AP 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
32 kHz
0 to 14.5 kHz
Rating
44.1 kHz
0 to 20.0 kHz
±0.01 dB
0 to 6°
Deemphasis passband characteristic (logarithmic scale)
The phase traces are from top to bottom fs = 32/44.1/48 kHz, respectively.
0
2
Phase
4
6
8
Attenuation
10
48 kHz
0 to 21.7 kHz
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 = 32/44.1/48 kHz, respectively.
0
2
4
6
8
10
Phase
0
-20
-40
-60
Attenuation
0
4k
8k
12k
16k
20k 22k 24k
Frequency (Hz)
Audio
ICs
NIPPON PRECISION CIRCUITS—6