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(a) X2 Mode (b) X4L Mode
(c) X4 Mode (d) X8 Mode
f
DAC
− MHz
0
10
20
30
40
50
60
0 100 200 300 400 500
Spurious Amplitude − dBc
G036
f
DAC
/2
f
DAC
− MHz
0
10
20
30
40
50
60
0 100 200 300 400 500
Spurious Amplitude − dBc
G037
f
DAC
/2
f
DAC
/4
f
DAC
x 3/4
f
DAC
− MHz
0
10
20
30
40
50
60
70
0 100 200 300 400 500
Spurious Amplitude − dBc
G038
f
DAC
/2
f
DAC
/4
f
DAC
− MHz
0
10
20
30
40
50
60
70
0 100 200 300 400 500
Spurious Amplitude − dBc
G039
f
DAC
/2
f
DAC
/8
f
DAC
x 7/8
f
DAC
/4
f
DAC
x 3/4
DAC5687
SLWS164E – FEBRUARY 2005 – REVISED SEPTEMBER 2006
Figure 74. Clock-Related Spurious Signal Amplitude With PLL On for f
SIG
= 11 × f
DAC
/ 32
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