Integrated

Circuit

Systems, Inc.

853054AG

www.icst.com/products/hiperclocks.html

REV. A JANUARY 5, 2006

1

ICS853054

PRELIMINARY

The ICS853054 is an 4:1 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 ICS853054 has 4

selectable differential clock inputs. The PCLKx, nPCLKx in-

put pairs can accept LVPECL, LVDS, CML or SSTL levels.

The fully differential architecture and low propagation

delay make it ideal for use in clock distribution circuits. The

select pins have internal pulldown resistors. The SEL1 pin is

the most significant bit and the binary number applied to the

select pins will select the same numbered data input (i.e., 00

selects PCLK0, nPCLK0).

• High speed 4:1 differential multiplexer

• One differential 3.3V or 2.5V LVPECL output

• Four selectable differential PCLK, nPCLK inputs

• PCLKx, nPCLKx pairs can accept the following

differential input levels: LVPECL, LVDS, CML, SSTL

• Maximum output frequency: 3.2GHz

• Translates any single ended input signal to

LVPECL levels with resistor bias on nPCLKx input

• Part-to-part skew: TBD

• Propagation delay: 465ps (typical)

• Additive phase jitter, RMS: 0.238ps (typical)

• LVPECL mode operating voltage supply range:

V

• ECL mode operating voltage supply range:

V

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

• Available in both standard and lead-free RoHS-compliant

packages

HiPerClockS™

ICS

PCLK0

nPCLK0

PCLK1

nPCLK1

SEL0

SEL1

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

Q

nQ

nPCLK3

PCLK3

nPCLK2

PCLK2

ICS853054

16-Lead TSSOP

4.4mm x 5.0mm x 0.92mm package body

G Package

Top View

PCLK0

nPCLK0

PCLK1

nPCLK1

PCLK2

nPCLK2

PCLK3

nPCLK3

00

11

01

10

SEL1

SEL0

Q

nQ

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.