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f − Frequency − MHz
−90
−80
−70
−60
−50
−40
−30
−20
−10
0
10
0 50 100 150 200 250
f
data
= 125 MSPS
f
in
= 30 MHz Real
IF = 155 MHz
y4L Interpolation
HP/HP
PLL Off
P − Power − dBm
G005
IF − Intermediate Frequency − MHz
60
65
70
75
80
85
90
95
100
5 10 15 20 25 30 35
f
data
= 125 MSPS
y4 Interpolation
PLL Off
SFDR − Spurious-Free Dynamic Range − dBc
G006
0 dBFS
−6 dBFS
−12 dBFS
IF − Intermediate Frequency − MHz
40
45
50
55
60
65
70
75
80
85
90
0 50 100 150 200 250
f
data
= 125 MSPS
y4 Interpolation
PLL Off
SFDR − Spurious-Free Dynamic Range − dBc
G007
0 dBFS
IF − Intermediate Frequency − MHz
50
55
60
65
70
75
80
85
90
95
100
0 50 100 150 200 250
f
data
= 125 MSPS
y4L Interpolation
PLL Off
f
out
= IF +0.5 MHz
IMD3 − dBc
G008
0 dBFS
DAC5687
SLWS164E – FEBRUARY 2005 – REVISED SEPTEMBER 2006
Typical Characteristics (continued)
Figure 5. Single-Tone Spectral Plot Figure 6. In-Band SFDR vs Intermediate Frequency
Figure 7. Out-of-Band SFDR vs Intermediate Frequency Figure 8. Two-Tone IMD vs Intermediate Frequency
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