SM5843A×1
8-times interpolation filter (slow roll-off: response 2)
Parameter
Condition
< 3 dB attenuation
> 77 dB attenuation
0 to 0.235fs
Rating @ 256fs
0 to 0.455fs
Passband
Stopband
0.745fs to 7.255fs
≤ ±0.00003 dB
≥ 77 dB
Passband ripple
Stopband attenuation
SYNCN = LOW
SYNCN = HIGH
25.625/fs
1
Group delay
25.25/fs to 26.0/fs
1. The digital filter arithmetic computation time from when the completion of data input at rate fs to the start of data output at rate 8fs.
8fs filter response with deemphasis OFF
0
20
40
60
80
100
120
140
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
Frequency
(×fs)
8fs filter band transition response with deemphasis OFF
0
20
40
60
80
100
120
140
0.00
0.125
0.25
0.375
0.50
0.625
0.75
0.825
1.00
Frequency
(×fs)
8fs filter passband response with deemphasis OFF
-2.0
0.0
2.0
4.0
6.0
0.000
0.125
0.500
0.250
0.375
Frequency
(×fs)
NIPPON PRECISION CIRCUITS—12
NPC [ NIPPON PRECISION CIRCUITS INC ]
