853058AG

www.icst.com/products/hiperclocks.html

REV. A APRIL 13, 2004

1

Integrated

Circuit

Systems, Inc.

ICS853058

PRELIMINARY

The ICS853058 is an 8:1 Differential-to-3.3V or

2.5V LVPECL / ECL Clock Multiplexer which can

operate up to 2.5GHz and is a member of the

HiPerClockS™ family of High Performance Clock

Solutions from ICS. The ICS853058 has 8 differ-

ential selectable clock inputs. The PCLK, nPCLK input pairs

can accept LVPECL, LVDS, CML or SSTL levels. The fully dif-

ferential architecture and low propagation delay make it ideal

for use in clock distribution circuits. The select pins have inter-

nal pulldown resistors. The SEL2 pin is the most significant bit

and the binary number applied to the select pins will select the

same numbered data input (i.e., 000 selects PCLK0, nPCLK0).

• High speed 8:1 differential multiplexer

• 1 differential 3.3V or 2.5V LVPECL output

• 8 selectable differential PCLK, nPCLK inputs

• PCLKx, nPCLKx pairs can accept the following

differential input levels: LVPECL, LVDS, CML, SSTL

• Maximum output frequency: 2.5GHz

• Translates any single ended input signal to

LVPECL levels with resistor bias on nPCLKx input

• Part-to-part skew: TBD

• Propagation delay: 620ps (typical)

• LVPECL mode operating voltage supply range:

V

• ECL mode operating voltage supply range:

V

• -40°C to 85°C ambient operating temperature

HiPerClockS™

ICS

ICS853058

24-Lead, 173-MIL TSSOP

4.4mm x 7.8mm x 0.92mm body package

G Package

Top View

PCLK0

nPCLK0

PCLK1

nPCLK1

SEL0

SEL1

SEL2

PCLK2

nPCLK2

PCLK3

nPCLK3

PCLK7

nPCLK7

PLCK6

nPCLK6

Q0

nQ0

PCLK5

nPCLK5

PCLK4

nPCLK4

PCLK0

nPCLK0

PCLK1

nPCLK1

PCLK2

nPCLK2

PCLK3

nPCLK3

000

011

001

010

SEL1 SEL0

Q0

nQ0

PCLK4

nPCLK4

PCLK5

nPCLK5

PCLK6

nPCLK6

PCLK7

nPCLK7

SEL2

100

111

101

110

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial

product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.