ICS8545I

LOW SKEW, 1-TO-4, LVCMOS/LVTTL-TO-LVDS FANOUT BUFFER

IDT™ / ICS™ LVDS FANOUT BUFFER

5

ICS8545BGI REV. B MARCH 02, 2009

AC Electrical Characteristics

All parameters measured at ƒ

≤ 650MHz unless noted otherwise.

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

NOTE 3: Defined as skew between outputs on different devices operating at the same supply voltages and with equal load conditions.

Using the same type of inputs on each device, the outputs are measured at the differential cross points.

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

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Differential Output Voltage

200

280

360

mV

∆V

OD

40

mV

Offset Voltage

1.125

1.25

1.375

V

∆V

OS

5

25

mV

High Impedance Leakage

-10

±1

+10

µA

Power Off Leakage

-20

±1

+20

µA

Differential Output Short Circuit Current

-3.5

-5

mA

Output Short Circuit Current

-3.5

-5

mA

Output Voltage High

1.34

1.6

V

Output Voltage Low

0.9

1.06

V

Parameter

Symbol

Test Conditions

Minimum

Typical

Maximum

Units

Output Frequency

650

MHz

Propagation Delay; NOTE 1

ƒ

≤ 650MHz

1.4

3.6

ns

tjit

Buffer Additive Phase Jitter, RMS;

refer to Additive Phase Jitter Section

156.25MHz, Integration Range:

12kHz – 20MHz

0.13

ps

tsk(o)

Output Skew; NOTE 2, 4

40

ps

tsk(pp)

Part-to-Part Skew; NOTE 3, 4

500

ps

Output Rise/Fall Time

20% to 80% @ 50MHz

200

400

700

ps

odc

Output Duty Cycle

ƒ

≤ 266MHz

45

55

%

ƒ> 266MHz

40

60

%