Si3000
Rev. 1.4
9
Table 8. Digital FIR Filter Characteristics—Transmit and Receive
(VA, VD = 5 V ±5% or 3.3 V ±10%, Sample Rate = 8 kHz, TA = 0 to 70°C)
Parameter
Symbol
Min
Typ
Max
Unit
Passband (3 dB, HPFD = 1)
F(3 dB)
0
—
3.6
kHz
Passband (3 dB, HPFD = 0)
F(3 dB)
0.01
—
3.6
kHz
Passband Ripple Peak-to-Peak
–0.1
—
0.1
dB
Stopband
—
4.4
—
kHz
Stopband Attenuation
–74
—
dB
Group Delay
tgd
—
12/Fs
—
sec
Note:
Typical FIR filter characteristics for Fs = 8000 Hz are shown in Figures
3,
4,
5, and
6.
Table 9. Digital IIR Filter Characteristics—Transmit and Receive
(VA, VD = 5 V ±5% or 3.3 V ±10%, Sample Rate = 8 kHz, TA = 70°C)
Parameter
Symbol
Min
Typ
Max
Unit
Passband (3 dB, HPFD = 1)
F(3 dB)
0
—
3.6
kHz
Passband (3 dB, HPFD = 0)
F(3 dB)
0.01
—
3.6
kHz
Passband Ripple Peak-to-Peak
–0.2
—
0.2
dB
Stopband
—
4.4
—
kHz
Stopband Attenuation
–40
—
dB
Group Delay
tgd
—
1.6/Fs
—
sec
Note:
Typical IIR filter characteristics for Fs = 8000 Hz are shown in Figures
7, 8,
9, and
10. Figures
11 and
12 show group
delay versus input frequency.