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ICS84330CVIT

720MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

TABLE 5. CRYSTAL CHARACTERISTICS

Parameter

Mode of Oscillation

Frequency

Equivalent Series Resistance (ESR)

Shunt Capacitance

ICS84330CI

720MHZ, LOW JITTER, CRYSTAL-TO-3.3V

DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER

Test Conditions

Minimum Typical Maximum

Fundamental

10

25

50

7

Units

MHz

Ω

pF

TABLE 6. INPUT FREQUENCY CHARACTERISTICS, VCC = VCCA = 3.3V±5%, TA = -40°C TO 85°C

Symbol Parameter

Test Conditions

Minimum Typical Maximum Units

XTAL; NOTE 1

10

25

MHz

fIN

Input Frequency S_CLOCK

FREF_EXT; NOTE 2

50

MHz

10

MHz

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 frequency of 10MHz, valid values of M are 200 ≤ M ≤ 511.

Using the maximum 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.

TABLE

7.

AC

CHARACTERISTICS,

V

CC

=

V

CCA

=

3.3V±5%,

TA

=

-40°C

TO

85°C

Symbol Parameter

Test Conditions

FOUT

Output Frequency

tjit(per) Period Jitter, RMS; NOTE 1, 2

tjit(cc) Cycle-to-Cycle Jitter; NOTE 1, 2

fOUT ≥ 43.75MHz

fOUT < 43.75MHz

tR / tF

Output Rise/Fall Time

S_DATA to S_CLOCK

20% to 80%

tS

Setup Time S_CLOCK to S_LOAD

M, N to nP_LOAD

S_DATA to S_CLOCK

tH

Hold Time

M, N to nP_LOAD

tL

PLL Lock Time

odc

Output Duty Cycle

See Parameter Measurement Information section.

Characterized using a XTAL input.

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

NOTE 2: See Applications section.

Minimum

200

20

20

20

20

20

45

Typical

Maximum

720

6

40

50

600

10

55

Units

MHz

ps

ps

ps

ps

ns

ns

ns

ns

ns

ms

%

84330CVI

www.icst.com/products/hiperclocks.html

6

REV. A DECEMBER 7, 2004

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