SM5846AP Datasheet, PDF (3/36 Pages) Nippon Precision Circuits Inc – Multi-function Digital Filter

SM5846AP
FILTER CHARACTERISTICS
Normal-speed Sampling
Parameter
Passband bandwidth
Stopband bandwidth
Passband ripple
Stopband attenuation
Group delay time¹
Rating
0 to 0.4535fs
0.5465 to 7.4535fs
±0.0004 dB
≥ 75 dB
When CKS is HIGH: 63.89/fs (when SYNC is LOW) and 63.51/fs to 64.26/fs (when SYNC is HIGH)
When CKS is LOW: 63.76/fs (when SYNC is LOW) and 63.59/fs to 64.14/fs (when SYNC is HIGH)
1. The time difference due to digital filter operation between the end of serial data input (at rate fs) and the start of serial data output (at rate 8fs).
Overall frequency characteristic
0
20
40
60
80
100
120
140
0.0
1.0
2.0
3.0
4.0
5.0
Frequency (fs)
Passband frequency characteristic
-0.0005
-0.00025
0.00000
0.00025
0.0005
0.000
0.125
0.250
Frequency _(fs)
6.0
7.0
8.0
0.375
0.500
Transition band characteristic
0
20
40
60
80
100
120
140
0.00
0.125
0.25
0.375
0.50
0.625
0.75
Frequency _(fs)
0.825
1.00
Audio
ICs
NIPPON PRECISION CIRCUITS—3