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4S204BIL

LOW SKEW, DUAL, PROGRAMMABLE 1-TO-2 DIFFERENTIAL-TO-LVDS, LVPECL FANOUT BUFFER

Integrated Device Technology 

ICS854S204I

LOW SKEW, DUAL, 1-TO-2 DIFFERENTIAL-TO-LVDS, LVPECL FANOUT BUFFER

TABLE

5C.

LVPECL

AC

CHARACTERISTICS,

V

DD

=

3.3V

±

5%,

TA

=

-40°C

TO

85°C

Symbol Parameter

Test Conditions

Minimum Typical Maximum

fMAX

Output Frequency

3

tPD

Propagation Delay; NOTE 1

500

tsk(o) Output Skew; NOTE 2, 4

15

tsk(b) Bank Skew; NOTE 3, 4

15

tjit

Buffer Additive Phase Jitter, RMS;

refer to Additive Phase Jitter Section

100MHz, Integration Range:

12kHz – 20MHz

0.12

tR / tF

odc

Output Rise/Fall Time

Output Duty Cycle

20% to 80%

100

200

49

51

All parameters measured at 550MHz unless noted otherwise.

NOTE 1: Measured from the differential input crossing point to the differential output crossing point.

NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions.

Measured from the output differential cross points.

NOTE 3: Defined as skew within a bank of outputs at the same supply voltage and with equal load conditions.

NOTE 4: This parameter is defined in accordance with JEDEC Standard 65.

Units

GHz

ps

ps

ps

ps

ps

%

TABLE

5D.

LVPECL

AC

CHARACTERISTICS,

V

DD

=

V

TAP

=

2.5V

±

5%,

TA

=

-40°C

TO

85°C

Symbol Parameter

Test Conditions

Minimum Typical Maximum

fMAX

Output Frequency

3

tPD

Propagation Delay; NOTE 1

500

tsk(o) Output Skew; NOTE 2, 4

15

tsk(b) Bank Skew; NOTE 3, 4

15

tjit

Buffer Additive Phase Jitter, RMS;

refer to Additive Phase Jitter Section

100MHz, Integration Range:

12kHz – 20MHz

0.07

t /t

RF

odc

Output Rise/Fall Time

Output Duty Cycle

20% to 80%

100

200

49

51

All parameters measured at 550MHz unless noted otherwise.

NOTE 1: Measured from the differential input crossing point to the differential output crossing point.

NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions.

Measured from the output differential cross points.

NOTE 3: Defined as skew within a bank of outputs at the same supply voltage and with equal load conditions.

NOTE 4: This parameter is defined in accordance with JEDEC Standard 65.

Units

GHz

ps

ps

ps

ps

ps

%

IDT™ / ICS™ LVDS, LVPECL FANOUT BUFFER

6

ICS854S204BGI REV. A JUNE 4, 2008

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