AD9775EB AD [Analog Devices], AD9775EB Datasheet - Page 36

• Manufacturer Part Number: AD9775EB
• Description: 14-Bit, 160 MSPS 2X/4X/8X Interpolating Dual TxDAC+ D/A Converter
• Manufacturer: AD [Analog Devices]

AD9775
Figure 47. AD9775, Real DAC Output of Complex
Input Signal Near Baseband (Negative Frequencies
Only), Interpolation = 4 , Complex Modulation in
AD9775 = –f
Figure 48. AD9775 Complex Output from
Figure 47, Now Quadrature Modulated by
AD8345 (LO = 800 MHz)
–100
–100
–10
–10
–20
–30
–40
–50
–60
–70
–80
–90
–20
–30
–40
–50
–60
–70
–80
–90
0
0
750
0
760
DAC
770
10
/4
780
FREQUENCY – MHz
FREQUENCY – MHz
790
20
800
810
30
820
830
40
840
850
50
–36–
Figure 49. AD9775, Real DAC Output of Complex
Input Signal Near Baseband (Positive Frequencies
Only), Interpolation = 8 , Complex Modulation in
AD9775 = +f
Figure 50. AD9775 Complex Output from
Figure 49, Now Quadrature Modulated by
AD8345 (LO = 800 MHz)
–100
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
700
0
720
DAC
740
20
/8
760
FREQUENCY – MHz
FREQUENCY – MHz
780
40
800
820
60
840
860
80
880
100
900
REV. 0