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SI533_07

DUAL FREQUENCY CRYSTAL OSCILLATOR (XO) (10 MHZ TO 1.4 GHZ)

Silicon Laboratories 

Si533

Table 2. CLK± Output Frequency Characteristics (Continued)

Parameter

Symbol

Test Condition

Min

Typ

Max Units

Temp stability = ±7 ppm

—

—

±20 ppm

Total Stability

Temp stability = ±20 ppm

—

—

±31.5 ppm

Temp stability = ±50 ppm

—

—

±61.5 ppm

Powerup Time4

tOSC

—

—

10

ms

Settling Time After FS Change tFRQ

—

—

10

ms

Notes:

1. See Section 3. "Ordering Information" on page 7 for further details.

2. Specified at time of order by part number. Also available in frequencies from 970 to 1134 MHz and 1213 to 1417 MHz.

3. Selectable parameter specified by part number.

4. Time from powerup or tristate mode to fO.

Table 3. CLK± Output Levels and Symmetry

Parameter

Symbol

Test Condition

Min

Typ

Max Units

LVPECL Output Option1

VO

mid-level

VDD – 1.42

—

VDD – 1.25 V

VOD

swing (diff)

1.1

—

1.9

VPP

LVDS Output Option2

VSE

swing (single-ended)

0.55

—

0.95

VPP

VO

mid-level

1.125

1.20

1.275

V

VOD

CML Output Option2

VO

swing (diff)

mid-level

0.5

0.7

0.9

VPP

—

VDD – 0.75

—

V

VOD

CMOS Output Option3

VOH

VOL

swing (diff)

IOH = 32 mA

IOL = 32 mA

0.70

0.8 x VDD

—

0.95

—

—

1.20

VPP

VDD

V

0.4

Rise/Fall time (20/80%)

tR, tF

LVPECL/LVDS/CML

—

—

350

ps

CMOS with CL = 15 pF

—

1

—

ns

Symmetry (duty cycle)

SYM LVPECL: VDD – 1.3 V (diff)

LVDS: 1.25 V (diff)

45

—

55

%

CMOS: VDD/2

Notes:

1. 50 Ω to VDD – 2.0 V.

2. Rterm = 100 Ω (differential).

3. CL = 15 pF

Rev. 1.1

3

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