SM5843A Datasheet, PDF (13/24 Pages) Nippon Precision Circuits Inc – Audio Multi-function Digital Filter

SM5843A×1
8fs filter passband response [amplitude gain enlarged]
-0.0001
-0.00005
0.00000
0.00005
0.0001
0.000
0.125
0.250
0.375
Frequency (×fs)
0.500
Deemphasis filter
Parameter
Passband bandwidth (kHz)
Deviation from ideal characteristic
Attenuation
Phase, θ
32 kHz
0 to 14.5
Sampling frequency (fs)
44.1 kHz
0 to 20.0
≤ ±0.001 dB
0 to 1.5°
Passband response with deemphasis ON (logarithmic frequency axis)
48 kHz
0 to 21.7
0
2
4
6
8
10
10 20
32kHz
Phase ⁰
-20
Attenuation
32k A44.1k A48kHz
44.1kHz ^-40
48kHz
-60
50 100 200 500 1k 2k
Frequency (Hz)
5k 10k 20k
Passband response with deemphasis ON (linear frequency axis)
0
0
Phase
2
32kHz
-20
4
44.1kHz
-40
48kHz
6
-60
Attenuation
32k A44.1k A48kHz
8
10
0
4k
8k
12k
16k
20k 22k 24k
Frequency (Hz)
NIPPON PRECISION CIRCUITS—13