2

PI6C5916004 Rev C

10/27/2014

PI6C5916004

6 GHz 1:4 LVPECL Fanout Buffer with Internal Termination

Pin #

Name

Type

Description

1, 2

Q1+, Q1-

Output

Differential output pair, LVPECL interface level.

3, 4

Q2+, Q2-

Output

Differential output pair, LVPECL interface level.

5, 6

Q3+, Q3-

Output

Differential output pair, LVPECL interface level.

7

Power

Core Power Supply

8

EN

Input

Synchronous Output Enable, with internal 25k-ohm pull-up resistor. Logic high selects

enable, and logic low selects disable.

9

REF_IN-

Input

Differential IN negative input, AC and DC coupled

10

Output

Reference Voltage: Biased to VDD-1.4V. Used when AC coupling inputs

11

Input

Differential pair IN center-tap node. Tie to VREF-AC for AC coupled inputs.

12

REF_IN+

Input

Differential IN positive input, AC and DC coupled

13

GND

Power

Ground

14

Power

Core Power Supply

15, 16

Q0+, Q0-

Output

Differential output pair, LVPECL interface level.

Functional Description

REF_IN+

REF_IN-

EN

Q+

Q-

0

1

1

0

1

1

0

1

1

0

X

X

0

0

1

14-0181