DAC5681Z Datasheet, PDF (14/61 Pages) Texas Instruments – 16-BIT, 1.0 GSPS 2x-4x INTERPOLATING DIGITAL-TO-ANALOG CONVERTER (DAC)

DAC5681Z
SLLS865G – AUGUST 2007 – REVISED NOVEMBER 2015
Typical Characteristics (continued)
85
F_data = 250 MSPS,
80
x4 Interpolation
PLL Off
75
70
65
60
55
50
45
0 50 100 150 200 250 300 350 400 450
IF - Intermediate Frequency - MHz
Figure 7. Out-of-Band SFDR vs IF
90
F_data = 250 MSPS,
F_OUT = 90 MHz ±0.5 MHz,
85 x4 Interpolation
PLL Off
80
75
70
65
60
-30
-24
-18
-12
-6
0
Amplitude - dBFS
Figure 9. Two-Tone IMD vs Amplitude
0
-10
F_data = 491.52 MSPS,
-20 ^FIN ^{= 61.44 MHz,}
F_OUT = 184.32 MHz,
-30
x4 Interpolation, HPLP
PLL Off
-40
-50
-60
-70
-80
-90
-100
183.2
183.7
184.2 184.7 185.2 185.7
f - Frequency - MHz
186.2
Figure 11. Two-Tone IMD Spectral Plot
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90
F_data = 250 MSPS,
85
x4 Interpolation PLL Off,
F_OUT = IF ±0.5 MHz,
80
Tone level = 0 dBFS
75
70
65
60
55
50
0 40 80 120 160 200 240 280 320
IF - Intermediate Frequency - MHz
Figure 8. Two-Tone IMD vs Output Frequency
0
F_data = 500 MSPS,
-10 F_OUT = 40 MHz
±0.5 MHz,
-20
x2 Interpolation
PLL Off
-30
-40
-50
-60
-70
-80
-90
-100
38.4
38.9 39.4 39.9 40.4 40.9 41.4
f - Frequency - MHz
Figure 10. Two-Tone IMD Spectral Plot
85
F_data = 491.52 MSPS,
F_IN = IF
80
PLL Off
75
PLL On
70
65
0
61.44
122.88
184.32
245.76
IF - Intermediate Frequency - MHz
Figure 12. Single Carrier W-CDMA Test Model 1
14
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