ics85322i Integrated Device Technology, ics85322i Datasheet

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ics85322i

Manufacturer Part Number
ics85322i
Description
Dual Lvcmos / Lvttl-to-differential 2.5v / 3.3v Lvpecl Translator
Manufacturer
Integrated Device Technology
Datasheet
B
G
puts. The single ended clock input accepts LVCMOS or LVTTL
input levels and translate them to 2.5V / 3.3V LVPECL levels.
The small outline 8-pin SOIC package makes this device ideal
for applications where space, high performance and low power
are important.
85322AMI
HiPerClockS™
IC S
LOCK
ENERAL
D
The ICS85322I is a Dual LVCMOS / LVTTL-to-
Differential 2.5V / 3.3V LVPECL translator and a
member of the HiPerClocks™ family of High Per-
for mance Clocks Solutions from ICS. The
ICS85322I has selectable single ended clock in-
IAGRAM
CLK0
CLK1
Integrated
Circuit
Systems, Inc.
D
ESCRIPTION
Q0
nQ0
Q1
nQ1
www.icst.com/products/hiperclocks.html
1
F
P
D
Two differential 2.5V/3.3V LVPECL outputs
Selectable CLK0, CLK1 LVCMOS/LVTTL clock inputs
CLK0 and CLK1 can accepts the following input levels:
LVCMOS or LVTTL
Maximum output frequency: 267MHz
Part-to-part skew: 250ps (maximum)
3.3V operating supply voltage
(operating range 3.135V to 3.465V)
2.5V operating supply voltage
(operating range 2.375V to 2.625V)
-40°C to 85°C ambient operating temperature
Available in standard (RoHS 5) or lead-free (RoHS 6)
packages
EATURES
IN
UAL
A
LVCMOS / LVTTL-
3.90mm x 4.92mm x 1.37mm body package
SSIGNMENT
2.5V / 3.3V LVPECL T
nQ0
nQ1
Q0
Q1
ICS85322I
8-Lead SOIC
M Package
Top View
1
2
3
4
8
7
6
5
V
CLK0
CLK1
V
EE
CC
TO
ICS85322I
-D
IFFERENTIAL
RANSLATOR
REV. C APRIL 11, 2007

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ics85322i Summary of contents

Page 1

... Integrated Circuit Systems, Inc ENERAL ESCRIPTION The ICS85322I is a Dual LVCMOS / LVTTL-to Differential 2.5V / 3.3V LVPECL translator and a HiPerClockS™ member of the HiPerClocks™ family of High Per- for mance Clocks Solutions from ICS. The ICS85322I has selectable single ended clock in- puts ...

Page 2

... www.icst.com/products/hiperclocks.html 2 ICS85322I -D TO IFFERENTIAL 2.5V / 3.3V LVPECL T RANSLATOR ...

Page 3

... www.icst.com/products/hiperclocks.html 3 ICS85322I -D TO IFFERENTIAL RANSLATOR 85° ...

Page 4

... www.icst.com/products/hiperclocks.html 4 ICS85322I -D TO IFFERENTIAL 2.5V / 3.3V LVPECL T RANSLATOR 85° ...

Page 5

... O L UTPUT CLK0, CLK1 nQ0, nQ1 Q0 ROPAGATION nQ0, nQ1 80 UTPUT UTY www.icst.com/products/hiperclocks.html 5 ICS85322I -D TO IFFERENTIAL RANSLATOR SCOPE Qx nQx OAD EST IRCUIT t PD ELAY Pulse Width t PERIOD t PW odc = t PERIOD /P W ...

Page 6

... FIN FOUT RTT T F ERMINATION IGURE www.icst.com/products/hiperclocks.html 6 ICS85322I -D TO IFFERENTIAL RANSLATOR 3.3V 125 125 FIN ...

Page 7

... The R3 in Figure 2B can be eliminated and the termination is shown in Figure 2C very close to CC 2.5V VCCO=2.5V R3 250 + - 2,5V LVPECL Driv er R4 62.5 F 2B. 2.5V LVPECL ERMINATION XAMPLE IGURE 2. XAMPLE www.icst.com/products/hiperclocks.html 7 ICS85322I -D TO IFFERENTIAL RANSLATOR 2. Ohm + Ohm - RIVER ERMINATION XAMPLE REV. C APRIL 11, 2007 ...

Page 8

... Equations and example calculations are also provided. 1. Power Dissipation. The total power dissipation for the ICS85322I is the sum of the core power plus the power dissipated in the load(s). The following is the power dissipation for V NOTE: Please refer to Section 3 for details on calculating power dissipated in the load. ...

Page 9

... RL 3. LVPECL RIVER IRCUIT AND – 0.9V CC_MAX – 1.7V CC_MAX - [( CC_MAX OH_MAX CC_MAX OH_MAX - [( CC_MAX OL_MAX CC_MAX OL_MAX www.icst.com/products/hiperclocks.html 9 ICS85322I -D TO IFFERENTIAL RANSLATOR V OUT ERMINATION )) / CC_MAX OH_MAX CC_MAX OL_MAX L REV. C APRIL 11, 2007 ...

Page 10

... Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs RANSISTOR OUNT The transistor count for ICS85322I is: 269 85322AMI D LVCMOS / LVTTL- UAL 2.5V / 3.3V LVPECL T R ...

Page 11

... ° 0 www.icst.com/products/hiperclocks.html 11 ICS85322I -D TO IFFERENTIAL RANSLATOR ° 8 REV. C APRIL 11, 2007 ...

Page 12

... " " " www.icst.com/products/hiperclocks.html 12 ICS85322I -D TO IFFERENTIAL 2.5V / 3.3V LVPECL T RANSLATOR ° ...

Page 13

... www.icst.com/products/hiperclocks.html 13 ICS85322I -D TO IFFERENTIAL RANSLATOR ± ...

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