ADS5500

SBAS303C − DECEMBER 2003 − REVISED MARCH 2004

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16

TYPICAL CHARACTERISTICS (continued)

Typical values are at TA = 25°C, AVDD = DRVDD = 3.3V, differential input amplitude = −1dBFS, sampling rate = 125MSPS, and DLL On, unless

otherwise noted.

AC PERFORMANCE vs INPUT AMPLITUDE

90

80

70

60

50

40

30

20

10

0

−10

−20

−30

Input Amplitude (dBFS)

−100 −90 −80 −70 −60 −50 −40 −30 −20 −10

0

SFDR (dBc)

SNR (dBFS)

SNR (dBc)

f

f

DLL On

AC PERFORMANCE vs INPUT AMPLITUDE

90

80

70

60

50

40

30

20

10

0

−10

−20

−30

Input Amplitude (dBFS)

−90 −80 −70 −60 −50 −40 −30 −20 −10

0

SFDR (dBc)

SNR (dBFS)

SNR (dBc)

f

f

DLL On

OUTPUT NOISE HISTOGRAM

40

35

30

25

20

15

10

5

0

Output Code

AC PERFORMANCE vs CLOCK AMPLITUDE

90

85

80

75

70

65

60

55

50

Differential Clock Amplitude (V)

f

f

0

0.5

1.0

1.5

2.0

2.5

3.0

SFDR

SNR

WCDMA TONE

0

−20

−40

−60

−80

−100

−120

−140

Frequency (MHz)

0

102030

405060

f

f