CM6571 Datasheet, PDF (53/63 Pages) C-Media Electronics – USB 2.0 full speed-compliant

CM6571
USB Audio Sound Chip
Audio Precision
12/21/11 19:32:27 Audio Precision
12/21/11 19:38:25
dx=-7.0007 kHz
dy=-0.299 dB
+1
+0
+0.5
-20
+0.01+20
-0.287
-0.5
d
B
r
-1
A
-1.5
-40
-60
d
B
-80
-100
-2
-120
-2.5
-3
20
50
100
200
500
1k
2k
55.k99965k 101k3.00032k0k
Hz
Sweep Trace Color Line Style Thick Data
Axis Comment
1
1
Cyan Solid
2
Anlr.Ampl Left
1
2
Yellow Solid
2
Anlr.Ampl Left
Curs or1
Curs or2
+0.022 dBr A -0.277 dBr A
*+0.012 dBr *-0.287 dBr
Vista-D-A FR+PR.at27
FIGURE 9. 96K/24BIT, 10K LOADING DAC, PASSBAND RIPPLE
-140
20
50
100
200
500
1k
2k
5k
Hz
Sweep Trace Color Line Style Thick Data
Axis Comment
1
1
Cyan Solid
2
Anlr.Crosstalk Left
Vis ta-D-A-Cros s talk-L.at27
10k 20k
FIGURE 10. 96K/24BIT, 10K LOADING DAC, CROSSTALK L
Audio Precision
12/21/11 19:36:13
+0
-20
-40
d
-60
B
-80
-100
-120
20
50
100
200
500
1k
2k
5k
Hz
Sweep Trace Color Line Style Thick Data
Axis Comment
1
1
Cyan Solid
2
Anlr.Crosstalk Left
Vista-D-A Crosstalk-R.at27
10k 20k
FIGURE 11. 96K/24BIT, 10K LOADING DAC, CROSSTALK R
Audio Precision
12/21/11 19:40:48
dx=-19.980 kHz
+1
+0.8
+0.6
+0.4
+0.2
d
e
+0
g
-0.2
-0.4
-0.6
-0.8
-1
20
50
100
200
500
1k
2k
5k
10k 1290.9k999k
Hz
Sweep Trace Color Line Style Thick Data
Axis Comment
1
1
Cyan Solid
2
Anlr.Phase Left
Vis ta-D-A InterChannelPhaseDelay.at27
Cursor1 Cursor2
..
..
FIGURE 12. 96K/24BIT, 10K LOADING DAC, PHASE DELAY
Revised: Nov. 2012
Page 53 / 63
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