ICS853052AGLFT datasheet(8/14 Pages) IDT

Part #	ICS853052AGLFT

Description	DUAL LVCMOS/LVTTL-TO-DIFFERENTIAL 2.5V, 3.3V, 5V LVPECL MULTIPLEXER

Download	14 Pages

Scroll/Zoom	100%

Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

Logo

8 / 14 page

IDT™ / ICS™ 2.5V, 3.3V, 5V LVPECL MULTIPLEXER

8

ICS853052AG REV. B OCTOBER 24, 2007

ICS853052

DUAL LVCMOS/LVTTL-TO-DIFFERENTIAL 2.5V, 3.3V, 5V LVPECL MULTIPLEXER

PRELIMINARY

The clock layout topology shown below is a typical termination

for LVPECL outputs. The two different layouts mentioned are

recommended only as guidelines.

FOUT and nFOUT are low impedance follower outputs that gen-

erate ECL/LVPECL compatible outputs. Therefore, terminating

resistors (DC current path to ground) or current sources must be

used for functionality. These outputs are designed to drive 50

Ω

transmission lines. Matched impedance techniques should be

used to maximize operating frequency and minimize signal dis-

tortion. Figures 2A and 2B show two different layouts which are

recommended only as guidelines. Other suitable clock layouts

may exist and it would be recommended that the board design-

ers simulate to guarantee compatibility across all printed circuit

and clock component process variations.

TERMINATION FOR 3.3V LVPECL OUTPUTS

FIGURE 2B. LVPECL OUTPUT TERMINATION

FIGURE 2A. LVPECL OUTPUT TERMINATION

V

CC - 2V

50

Ω

50

Ω

RTT

Z

o = 50Ω

Z

o = 50Ω

FOUT

FIN

RTT =

Z

o

1

((V

OH + VOL) / (VCC – 2)) – 2

3.3V

125

Ω

125

Ω

84

Ω

84

Ω

Z

o = 50Ω

Z

o = 50Ω

FOUT

FIN

TERMINATION FOR 5V LVPECL OUTPUT

This section shows examples of 5V LVPECL output termination.

Figure 3A shows standard termination for 5V LVPECL. The

termination requires matched load of 50

Ω resistors pull down to

Zo = 50 Ohm

R2

50

Zo = 50 Ohm

5V

3V

PECL

+

-

R1

50

5V

PECL

R4

84

5V

Zo = 50 Ohm

R3

84

R2

125

5V

PECL

+

-

Zo = 50 Ohm

R1

125

FIGURE 3A. STANDARD 5V LVPECL OUTPUT TERMINATION

FIGURE 3B. 5V LVPECL OUTPUT TERMINATION EXAMPLE

V

CC

- 2V = 3V at the receiver. Figure 3B shows Thevenin

equivalence of Figure 3A. In actual application where the 3V DC

power supply is not available, this approached is normally used.

Similar Part No. - ICS853052AGLFT

Manufacturer	Part #	Datasheet	Description
Integrated Circuit Syst...	ICS853052AG	232Kb / 13P	DUAL LVCMOS / LVTTL-TO-DIFFERENTIAL 2.5V, 3.3V, 5V LVPECL MULTIPLEXER
Integrated Circuit Syst...	ICS853052AGT	232Kb / 13P	DUAL LVCMOS / LVTTL-TO-DIFFERENTIAL 2.5V, 3.3V, 5V LVPECL MULTIPLEXER

More results

Similar Description - ICS853052AGLFT

Manufacturer	Part #	Datasheet	Description
Integrated Circuit Syst...	ICS853052	232Kb / 13P	DUAL LVCMOS / LVTTL-TO-DIFFERENTIAL 2.5V, 3.3V, 5V LVPECL MULTIPLEXER
Renesas Technology Corp	85322	323Kb / 14P	Dual LVCMOS / LVTTL-to-Differential 2.5V / 3.3V LVPECL Translator January 20, 2016
Renesas Technology Corp	ICS85322I	714Kb / 17P	Dual LVCMOS/LVTTL-To-Differential 2.5V/3.3V LVPECL Translator MARCH 6, 2014
Integrated Circuit Syst...	ICS85322I	160Kb / 13P	DUAL LVCMOS / LVTTL-TO-DIFFERENTIAL 2.5V / 3.3V LVPECL TRANSLATOR
Micrel Semiconductor	SY100EPT22V	88Kb / 8P	3.3V/5V DUAL LVTTL/LVCMOS-to- DIFFERENTIAL LVPECL TRANSLATOR
Integrated Circuit Syst...	ICS85322	126Kb / 13P	DUAL LVCMOS/LVTTL-TO-DIFFERENTIAL 2.5V/3.3V LVPECL TRANSLATOR
Integrated Device Techn...	ICS85322I	302Kb / 16P	Dual LVCMOS/LVTTL-To-Differential 2.5V/3.3V LVPECL Translator
Micrel Semiconductor	SY89322V	468Kb / 5P	3.3V/5V DUAL LVTTL/LVCMOS-to-DIFFERENTIAL LVPECL TRANSLATOR
Integrated Device Techn...	85320	215Kb / 16P	LVCMOS/LVTTL-to-Differential 3.3V, 2.5V LVPECL Translator
Micrel Semiconductor	SY10EPT20V	74Kb / 6P	5V/3.3V LVTTL/LVCMOS-to-DIFFERENTIAL LVPECL TRANSLATOR

More results

ICS853052AGLFT Datasheet(PDF) 8 Page - Integrated Device Technology

ICS853052AGLFT Datasheet(HTML) 8 Page - Integrated Device Technology

Similar Part No. - ICS853052AGLFT

Similar Description - ICS853052AGLFT

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Datasheet Download

Link URL