Datasheet


SBAS290B − JULY 2003 − SEPTEMBER 2004
www.ti.com
7
TYPICAL CHARACTERISTICS
At T
A
= +25°C with V
CC
= +5V, VDD = +3.3V, and a measurement bandwidth from 20Hz to 20kHz, unless otherwise noted.
OVERALL CHARACTERISTICS
SINGLE RATE FILTER
−
200
−
150
−
100
−
50
0
50
0 0.51.01.52.02.53.03.54.0
Normalized Frequency (f
S
)
Amplitude (dB)
f
S
=48kHz
STOP BAND ATTENUATION CHARACTERISTICS
SINGLE RATE FILTER
0
−
10
−
20
−
30
−
40
−
50
−
60
−
70
−
80
−
90
−
100
−
110
−
120
−
130
−
140
−
150
0
0.25
0.5
0.75
1
Normalized Frequency (f
S
)
Normalized Frequency (f
S
)
f
S
=48kHz
PASSBAND RIPPLE CHARACTERISTICS
SINGLE RATE FILTER
0.02
0
−
0.02
−
0.04
−
0.06
−
0.08
−
0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
Normalized Frequency (f
S
)
Amplitude (dB)
f
S
=48kHz
TRANSIENT BAND CHARACTERISTICS
SINGLE RATE FILTER
Normalized Frequency (f
S
)
f
S
=48kHz
Amplitude (dB)
0
−
1
−
2
−
3
−
4
−
5
−
6
−
7
−
8
−
9
−
10
0.510.490.470.45 0.53 0.55
OVERALL CHARACTERISTICS
DUAL RATE FILTER
Normalized Frequency (f
S
)
Amplitude (dB)
50
0
−
50
−
100
−
150
−
200
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.00
f
S
= 96kHz
STOP BAND ATTENUATION CHARACTERISTICS
DUAL RATE FILTER
0
0.25
0.5
0.75
1
Normalized Frequency (f
S
)
Amplitude (dB)
f
S
=96kHz
0
−
10
−
20
−
30
−
40
−
50
−
60
−
70
−
80
−
90
−
100
−
110
−
120
−
130
−
140
−
150