Datasheet

DF1704
4
SBAS099A
TYPICAL CHARACTERISTICS OF INTERNAL FILTER
DIGITAL FILTER (DE-EMPHASIS OFF, f
S
= 44.1kHz)
DE-EMPHASIS AND DE-EMPHASIS ERROR
043.532.521.510.5
Frequency (f
S
)
20
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
–200
FREQUENCY RESPONSE (Sharp Roll Off)
Attenuation (dB)
00.50.450.40.3 0.350.250.20.150.10.5
Frequency (f
S
)
0.0001
0.00008
0.00006
0.00004
0.00002
0
–0.00002
–0.00004
–0.00006
–0.00008
–0.0001
PASSBAND RIPPLE (Sharp Roll Off)
Attenuation (dB)
043.532.521.510.5
Frequency (f
S
)
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
–200
FREQUENCY RESPONSE (Slow Roll Off)
Attenuation (dB)
0 0.1 0.2 0.3 0.4 0.5 0.70.6
Frequency (f
S
)
TRANSITION CHARACTERISTIC (Slow Roll Off)
0
–5
–10
–15
Attenuation (dB)
01412108642
Frequency ( f
S
)
0
–2
–4
–6
–8
–10
DE-EMPHASIS (f
S
= 32kHz)
Level (dB)
01412810642
Frequency (f
S
)
0.01
0.008
0.006
0.004
0.002
0
–0.002
–0.004
–0.006
–0.008
–0.01
DE-EMPHASIS ERROR (f
S
= 32kHz)
Error (dB)