Rainbow-electronics MAX1444 Manual do Utilizador descarregar pdf (Página 12)

MAX1444

10-Bit, 40Msps, +3.0V, Low-Power

ADC with Internal Reference

12 ______________________________________________________________________________________

20 4030 50 60 70

CLOCK DUTY CYCLE (%)

SFDR (dBc)

= 13.24MHz AT-0.5dB FS

Figure 3a. Spurious-Free Dynamic Range vs. Clock Duty Cycle

(Differential Input)

20 4030 50 60 70

CLOCK DUTY CYCLE (%)

SNR (dB)

= 13.24MHz AT-0.5dB FS

Figure 3b. Signal-to-Noise Ratio vs. Clock Duty Cycle

(Differential Input)

-80

-76

-68

-72

-64

-60

20 4030 50 60 70

CLOCK DUTY CYCLE (%)

THD (dBc)

= 13.24MHz AT-0.5dB FS

Figure 4a. Total Harmonic Distortion vs. Clock Duty Cycle

(Differential Input)

20 4030 50 60 70

CLOCK DUTY CYCLE (%)

SINAD (dB)

= 13.24MHz AT-0.5dB FS

Figure 4b. Signal-to-Noise Plus Distortion vs. Clock Duty Cycle

(Differential Input)

OUTPUT

DATA D9–D0

DISABLE

ENABLE

HIGH-ZHIGH-Z

VALID DATA

Figure 5. Output Enable Timing

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 18

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Rainbow-electronics MAX1444 Manual do Utilizador Página 12