AD9551SLASHPCBZ datasheet(5/40 Pages) AD

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AD9551

Rev. B | Page 5 of 40

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

Duty Cycle

At maximum output frequency

Rise/Fall Time1 (20% to 80%)

500

745

3.3 V CMOS; standard drive strength

setting; 10 pF load

1 The listed values are for the slower edge (rise or fall).

JITTER CHARACTERISTICS (180 HZ LOOP BANDWIDTH)

Table 3.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

JITTER GENERATION

12 kHz to 20 MHz

1.3

ps rms

fIN = 19.44 MHz, fOUT = 622.08 MHz

0.8

ps rms

fIN = 622.08 MHz, fOUT = 622.08 MHz

50 kHz to 80 MHz

0.5

ps rms

fIN = 19.44 MHz, fOUT = 622.08 MHz

0.6

ps rms

fIN = 622.08 MHz, fOUT = 622.08 MHz

4 MHz to 80 MHz

0.1

ps rms

fIN = 622.08 MHz, fOUT = 622.08 MHz

JITTER TRANSFER BANDWIDTH

180

See the Typical Performance

Characteristics section

JITTER TRANSFER PEAKING

0.1

See the Typical Performance

Characteristics section

CRYSTAL OSCILLATOR CHARACTERISTICS

Table 4.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

CRYSTAL FREQUENCY

Range

MHz

Tolerance

ppm

CRYSTAL MOTIONAL RESISTANCE

100

DCXO LOAD CAPACITANCE CONTROL

RANGE

3 to 21

Requires a crystal with a 10 pF load

specification

POWER CONSUMPTION

Table 5.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

TOTAL CURRENT

169

195

At maximum output frequency with both

output channels active

VDD CURRENT BY PIN

Pin 9

Pin 23

Pin 27

Pin 34

LVPECL OUTPUT DRIVER

900 MHz with 100 Ω termination between

both pins of the output driver

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