fO – Output Frequency – MHz

40

45

50

55

60

65

70

75

80

10

15

20

25

30

35

40

45

50

fDATA = 125 MSPS

Dual DAC Mode

4y Interpolation

Out-of-Band = 62.5–250 MHz

PLLVDD = 0 V

0 dBfS

–12 dBfS

–6 dBfS

G005

f – Frequency – MHz

−90

−80

−70

−60

−50

−40

−30

−20

−10

0

10

0

25

50

75

100

125

150

fDATA = 75 MSPS

fIN = None

NCO On

fOUT = 100 MHz

Quad Mode

4y Interpolation

PLLVDD = 0 V

G006

fO – Output Frequency – MHz

65

70

75

80

85

90

95

10

15

20

25

30

35

40

45

50

55

60

± 0.5 MHz

± 2 MHz

fDATA = 150 MSPS

Dual DAC Mode

2y Interpolation

PLLVDD = 0 V

G007

f – Frequency – MHz

−100

−90

−80

−70

−60

−50

−40

−30

−20

−10

0

10

15

20

25

30

fDATA = 150 MSPS

fIN1 = 19.5 MHz

fIN2 = 20.5 MHz

Dual DAC Mode

2y Interpolation

PLLVDD = 0 V

G008

DAC5686

www.ti.com ............................................................................................................................................................ SLWS147F – APRIL 2003 – REVISED JUNE 2009

TYPICAL CHARACTERISTICS (continued)

OUT-OF-BAND SPURIOUS-FREE DYNAMIC RANGE

vs

OUTPUT FREQUENCY

SINGLE-TONE SPECTRUM

Figure 5.

Figure 6.

TWO-TONE IMD3

vs

OUTPUT FREQUENCY

TWO-TONE IMD PERFORMANCE

Figure 7.

Figure 8.

Copyright © 2003–2009, Texas Instruments Incorporated

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