Philips Semiconductors

PCKEL14

2.5 V/3.3 V PECL/ECL 1:5 clock distribution chip

Product data

Rev. 01 — 14 October 2002

8 of 15

9397 750 09564

© Koninklijke Philips Electronics N.V. 2002. All rights reserved.

9.

Dynamic characteristics

[1]

[2]

Skews are specified for identical LOW-to-HIGH or HIGH-to-LOW transitions.

[3]

Table 8:

AC characteristics

Symbol

Parameter

Conditions

Unit

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

maximum toggle

frequency

see Figure 4

-

> 1-

-

> 1-

-

> 1-

GHz

LOW-to-HIGH

propagation delay

CLK to Q (diff);

3.3 V

400

-

720

450

-

780

475

-

830

ps

CLK to Q (diff);

2.5 V

400

-

800

450

-

940

500

-

970

ps

HIGH-to-LOW

propagation delay

CLK to Q (SE)

330

-

770

350

680

830

370

-

880

ps

SCLK to Q

330

-

770

350

680

830

370

-

880

ps

skew time

part-to-part

-

-

200

-

-

200

-

-

200

ps

within-device;

3.3 V

[2]

-

-

50

-

-

50

-

-

50

ps

within-device;

2.5 V

[2]

-

-

70

-

-

70

-

-

70

ps

cycle-to cycle jitter

-

0.2

< 1

-

0.2

< 1

-

0.2

< 1

ps

EN set-up time

0

-

-

0

-

-

0

-

-

ps

EN hold time

0

-

-

0

-

-

0

-

-

ps

input swing CLK

[3]

150

-

1000

150

-

1000

150

-

1000 mV

output rise/fall times

Q pins

(20% - 80%);

3.3 V

230

-

500

230

-

500

230

-

500

ps

Q pins

(20% - 80%);

2.5 V

230

-

600

230

-

600

230

-

625

ps