ICS84330-02 データシートの表示（PDF） - Integrated Circuit Systems

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ICS84330-02

350MHZ/ CRYSTAL-TO-3.3V/2.5V LVPECL FREQUENCY SYNTHESIZER W/FANOUT BUFFER

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

TABLE 5. CRYSTAL CHARACTERISTICS

Parameter

Mode of Oscillation

Frequency

Equivalent Series Resistance (ESR)

Shunt Capacitance

Drive Level

ICS84330-02

700MHZ, LOW JITTER, CRYSTAL-TO-3.3V

DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER

Test Conditions

Minimum Typical Maximum

Fundamental

10

25

70

7

1

Units

MHz

Ω

pF

mW

TABLE 6. INPUT FREQUENCY CHARACTERISTICS, VCC = VCCA = 3.3V±5%, TA = 0°C TO 70°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

25

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 700MHz. 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 ≤ 224.

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, VCC = VCCA = 3.3V±5%, TA = 0°C TO 70°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

tR / tF

tnP_LOAD

Output Rise/Fall Time

Input

Rise Time

Parallel Data Load Time

20% to 80%

20% to 80%

S_DATA to S_CLOCK

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

N≠1

odc

Output Duty Cycle

N = 1, fOUT ≤ 250MHz

N = 1,

250MHz < fOUT ≤ 500MHz

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

45

40

Typical

Maximum

700

5

40

600

50

10

55

55

60

Units

MHz

ps

ps

ps

ns

ns

ns

ns

ns

ns

ms

%

%

%

84330AV-02

www.icst.com/products/hiperclocks.html

6

REV. A MAY 31, 2005

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