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DAC5687 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
DAC5687 16-BIT, 500 MSPS 2?8 INTERPOLATING DUAL-CHANNEL DIGITAL-TO-ANALOG CONVERTER (DAC) Texas-Instruments
Texas Instruments Texas-Instruments
DAC5687 Datasheet PDF : 80 Pages
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DAC5687
www.ti.com
SLWS164E – FEBRUARY 2005 – REVISED SEPTEMBER 2006
Typical Characteristics (continued)
90
fdata = 125 MSPS
85 fin = −30 MHz +0.5 MHz Complex
IF = 95 MHz
80
y4L Interpolation
CMIX
PLL Off
75
0
fdata = 125 MSPS
−10 fin = 20 MHz
+0.5 MHz Real
−20 IF = 20 MHz
y4 Interpolation
−30 PLL Off
70
−40
65
−50
60
−60
55
−70
50
−80
45
−90
40
−35 −30 −25 −20 −15 −10 −5
Amplitude − dBFS
Figure 9. Two-Tone IMD vs Amplitude
0
fdata = 125 MSPS
−10 fin = −30 MHz
+0.5 MHz Complex
−20 IF = 95 MHz
y4L Interpolation
−30 CMIX
PLL Off
−40
0
G009
−100
10
90
85
80
75
15
20
25
f − Frequency − MHz
Figure 10. Two-Tone IMD Spectral Plot
30
G010
fdata = 122.88 MSPS
Baseband Input
DVDD = 1.8 V
PLL Off
−50
70
−60
65
−70
PLL On
60
−80
−90
55
−100
85
90
95
100
f − Frequency − MHz
Figure 11. Two-Tone IMD Spectral Plot
105
G011
50
0
50
100
150
200
250
IF − Intermediate Frequency − MHz
G012
Figure 12. WCDMA ACLR vs Intermediate Frequency
Copyright © 2005–2006, Texas Instruments Incorporated
Product Folder Link(s): DAC5687
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