DAC5687 Datasheet, PDF (12/72 Pages) Texas Instruments – 16-BIT, 500 MSPS 2x-8x INTERPOLATING DUAL-CHANNEL DIGITAL-TO-ANALOG CONVERTER (DAC)

DAC5687
SLWS164B – FEBRUARY 2005 – REVISED JUNE 2005
Typical Characteristics (continued)
10
f_data = 125 MSPS
0 _{fin = 30 MHz Real}
IF = 155 MHz
−10 _{y4L Interpolation}
HP/HP
−20 _{PLL Off}
−30
−40
−50
−60
−70
−80
−90
0
90
85
80
50
100
150
200
f − Frequency − MHz
Figure 5. Single Tone Spectral Plot
250
G005
f_data = 125 MSPS
y4 Interpolation
PLL Off
75
70
0 dBFS
65
60
55
50
45
40
0
50
100
150
200
IF − Intermediate Frequency − MHz
250
G007
Figure 7. Out-of-Band SFDR vs Intermediate Frequency
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100
f_data = 125 MSPS
95 ^{y4 Interpolation}
PLL Off
90
85
−6 dBFS
80
75
−12 dBFS
70
0 dBFS
65
60
5
10
15
20
25
30
IF − Intermediate Frequency − MHz
35
G006
Figure 6. In-Band SFDR vs Intermediate Frequency
100
f_data = 125 MSPS
95
y4L Interpolation
PLL Off
90
f_out = IF +0.5 MHz
85
80
75
0 dBFS
70
65
60
55
50
0
50
100
150
200
IF − Intermediate Frequency − MHz
250
G008
Figure 8. Two Tone IMD vs Intermediate Frequency
12