Datasheet

TYPICAL CHARACTERISTICS: ANALOG FIR FILTER PERFORMANCE IN DSD MODE
0
1
2
3
4
5
6
-
-
-
-
-
-
Gain(dB)
Frequency(kHz)
0 100
200
50 150
DSDFilter-1
LowBandwidth
0
10
20
30
40
50
60
-
-
-
-
-
-
Gain(dB)
Frequency(Hz)
0 1M
1.5M
500k
DSDFilter-1
HighBandwidth
f =185kHz
Gain= 6.6dB
C
-
0
1
2
3
4
5
6
-
-
-
-
-
-
Gain(dB)
Frequency(kHz)
0 100
200
50 150
DSDFilter-2
LowBandwidth
0
10
20
30
40
50
60
-
-
-
-
-
-
Gain(dB)
Frequency(Hz)
0 1M
1.5M
500k
DSDFilter-2
HighBandwidth
f =90kHz
Gain=0.3dB
C
0
1
2
3
4
5
6
-
-
-
-
-
-
Gain(dB)
Frequency(kHz)
0 100
200
50 150
DSDFilter-3
LowBandwidth
0
10
20
30
40
50
60
-
-
-
-
-
-
Gain(dB)
Frequency(Hz)
0 1M
1.5M
500k
DSDFilter-3
HighBandwidth
f =85kHz
Gain= 1.5dB
C
-
PCM1795
www.ti.com ........................................................................................................................................................................................................ SLES248 – MAY 2009
All specifications at DBCK = 2.8224 MHz (44.1 kHz × 64 f
S
), and 50% modulation DSD data input, unless otherwise noted.
GAIN vs FREQUENCY GAIN vs FREQUENCY
(1)
Figure 26. Figure 27.
GAIN vs FREQUENCY GAIN vs FREQUENCY
Figure 28. Figure 29.
GAIN vs FREQUENCY GAIN vs FREQUENCY
Figure 30. Figure 31.
(1) This gain is in comparison to PCM 0 dB, when the DSD input signal efficiency is 50%.
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