ICS85356AMIT datasheet(1/14 Pages) ICST

Il numero della parte	ICS85356AMIT

Spiegazioni elettronici	2:1, DIFFERENTIAL-TO-3.3V DUAL LVPECL / ECL CLOCK MULTIPLEXER

PDF	14 Pages

Scroll/Zoom	100%

Produttore elettronici	ICST [Integrated Circuit Systems]

Homepage	http://www.icst.com

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1 / 14 page

85356AMI

www.icst.com/products/hiperclocks.html

REV. A OCTOBER 7, 2004

1

Integrated

Circuit

Systems, Inc.

ICS85356I

2:1, DIFFERENTIAL-TO-3.3V

DUAL LVPECL / ECL CLOCK MULTIPLEXER

BLOCK DIAGRAM

PIN ASSIGNMENT

ICS85356I

20-Lead SOIC

7.5mm x 12.8mm x 2.3mm

M Package

Top View

GENERAL DESCRIPTION

The ICS85356I is a dual 2:1 Differential-to-LVPECL

Multiplexer and is a member of the HiPerClockSTM

family of High Performance Clock Solutions from

ICS. The device has both common select and indi-

vidual select inputs.When COM_SEL is logic High,

the CLKxx input pairs will be passed to the output. When

COM_SEL is logic Low, the output is determined by the setting

of the SEL0 pin for channel 0 and the SEL1 pin for Channel 1.

The differential input has a common mode range that can accept

most differential input types such as LVPECL, LVDS, LVHSTL,

SSTL, and HCSL. The ICS85356I can therefore be used as a

differential translator to translate almost any differential input type

to LVPECL. It can also be used in ECL mode by setting V

CC=0V

and V

EE to -3.0V to - 3.8V.

The ICS85356I adds negligible jitter to the input clock and can

operate at high frequencies in excess of 900MHz thus making

it ideal for use in demanding applications such as SONET,

Fibre Channel, 1 Gigabit/10 Gigabit Ethernet.

FEATURES

• High speed differential multiplexer.

The device can be configured as a 2:1 multiplexer

• Dual 3.3V LVPECL outputs

• Selectable differential CLKxx, nCLKxx inputs

• CLKxx, nCLKxx pair can accept the following differential

input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL

• Output frequency: 900MHz (typical)

• Translates any single ended input signal to 3.3V

LVPECL levels with resistor bias on nCLKxx input

• Output skew: 75ps (typical)

• Propagation delay: 1.15ns (typical)

• LVPECL mode operating voltage supply range:

V

CC = 3V to 3.8V, VEE = 0V

• ECL mode operating voltage supply range:

V

CC = 0V, VEE = -3V to -3.8V

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

• Lead-Free package available

• Compatible with MC100LVEL56

HiPerClockS™

ICS

CLK0A

nCLK0A

CLK0B

nCLK0B

Q0

nQ0

SEL0

COM_SEL

SEL1

0

1

CLK1A

nCLK1A

CLK1B

nCLK1B

Q1

nQ1

0

1

ICS85356I

20-Lead TSSOP

6.5mm x 4.4mm x 0.92mm

G Package

Top View

CLK0A

nCLK0A

nc

CLK0B

nCLK0B

CLK1A

nCLK1A

nc

CLK1B

nCLK1B

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

VCC

Q0

nQ0

SEL0

COM_SEL

SEL1

VCC

Q1

nQ1

VEE

CLK0A

nCLK0A

nc

CLK0B

nCLK0B

CLK1A

nCLK1A

nc

CLK1B

nCLK1B

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

VCC

Q0

nQ0

SEL0

COM_SEL

SEL1

VCC

Q1

nQ1

VEE

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