ADS5542IPAPR datasheet(17/33 Pages) TI1

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100

−10

−20

−30

Input Amplitude

− dBFS

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

IN = 150MHz

SFDR (dBc)

SNR (dBc)

SNR (dBFS)

−10

−20

−30

Input Amplitude

− dBFS

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

IN = 220MHz

SFDR (dBc)

SNR (dBc)

SNR (dBFS)

Differential Clock Amplitude

− V

0.5

1.0

1.5

2.0

2.5

3.0

IN = 70MHz

SFDR

SNR

Code

−20

−40

−60

−80

−100

−120

−140

− Frequency − MHz

S = 76.8MSPS

IN = 170MHz

100

Clock Duty Cycle

− %

IN = 20MHz

SFDR

SNR

ADS5542

SBAS308D – MAY 2004 – REVISED FEBRUARY 2007

TYPICAL CHARACTERISTICS (continued)

Typical values given at T

A = 25°C, AVDD = DRVDD = 3.3 V, differential input amplitude = –1dBFS, sampling rate = 80 MSPS

and 3-V differential clock, unless otherwise noted

AC PERFORMANCE

vs INPUT AMPLITUDE

Figure 29.

Figure 30.

OUTPUT

AC PERFORMANCE

NOISE HISTOGRAM

vs CLOCK AMPLITUDE

Figure 31.

Figure 32.

WCDMA

AC PERFORMANCE

CARRIER

vs CLOCK DUTY CYCLE

Figure 33.

Figure 34.

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