ICS84330CVI REVISION A JANUARY 7, 2011

6

©2011 Integrated Device Technology, Inc.

ICS84330CI Data Sheet

720MHZ, CRYSTAL-TO-LVPECL FREQUENCY SYNTHESIZER

Table 5. Crystal Characteristics

NOTE 1: For the crystal frequency range, the M value must be set to achieve the minimum or maximum VCO frequency range of 250MHz to

720MHz. Using the minimum input frequency of 10MHz, valid values of M are 200

 M  511. Using the maximum input frequency of 25MHz,

valid values of M are 80

 M  230.

NOTE 2: Maximum frequency on FREF_EXT is dependent on the internal M counter limitations. See Application Information Section for

recommendations on optimizing the performance using the FREF_EXT input.

AC Electrical Characteristics

NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device

is mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal

equilibrium has been reached under these conditions.

See Parameter Measurement Information section.

NOTE: Characterized using 16MHz XTAL.

NOTE 1: This parameter is defined in accordance with JEDEC Standard 65.

NOTE 2: See Applications section.

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Mode of Oscillation

Fundamental

Frequency

10

25

MHz

Equivalent Series Resistance (ESR)

50



Shunt Capacitance

7pF

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Input Frequency

XTAL; NOTE 1

10

25

MHz

S_CLOCK

50

MHz

FREF_EXT; NOTE 2

10

MHz

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Output Frequency

720

MHz

tjit(per)

Period Jitter, RMS; NOTE 1. 2

6

ps

tjit(cc)

Cycle-to-Cycle Jitter; NOTE 1, 2

fOUT

 43.75MHz

40

ps

fOUT < 43.75MHz

50

ps

Output Rise/Fall Time

20% to 80%

200

600

ps

Setup Time

S_DATA to S_CLOCK

20

ns

S_CLOCK to S_LOAD

20

ns

M, N to nP_LOAD

20

ns

Hold Time

S_DATA to S_CLOCK

20

ns

M, N to nP_LOAD

20

ns

PLL Lock Time

10

ms

odc

Output Duty Cycle

45

55

%