ICS85356AGI IDT, Integrated Device Technology Inc, ICS85356AGI Datasheet

ICS85356AGI

Manufacturer Part Number
ICS85356AGI
Description
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Multiplexerr
Datasheet

Specifications of ICS85356AGI

Number Of Clock Inputs
4/2
Mode Of Operation
Differential
Output Frequency
900MHz
Output Logic Level
ECL/LVPECL
Operating Supply Voltage (min)
-3/3V
Operating Supply Voltage (typ)
-3.3/3.3V
Operating Supply Voltage (max)
-3.8/3.6V
Package Type
TSSOP
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
20
Lead Free Status / RoHS Status
Not Compliant
General Description
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
V
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.
COM_SEL
ICS85356AMI REVISION B MAY 10, 2010
Block Diagram
HiPerClockS™
EE
nCLK0A
nCLK1A
ICS
CLK0A
CLK0B
CLK0B
CLK1A
CLK1B
CLK1B
to -3.0V to - 3.8V.
SEL0
SEL1
Pulldown
Pullup
Pulldown
Pullup
Pullup
Pulldown
Pullup
Pulldown
Pullup
Pulldown
Pullup
The ICS85356I is a dual 2:1 Differential-to-LVPECL
Multiplexer. The device has both common select and
individual 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
0
1
0
1
2:1, Differential-to-3.3V Dual LVPECL/ECL
Clock Multiplexer
Q0
nQ0
Q1
nQ1
CC
= 0V and
1
Features
High speed differential muliplexer. The device can be configured
as a 2:1 multiplexer
Dual 3.3V LVPECL outputs
Selectable differential CLKx/nCLKx input pairs
Differential CLKx/nCLKx pairs can accept the following interface
levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL
Output frequency: 900MHz (typical)
Translates any single-ended input signal to 3.3V LVPECL levels
with resistor bias on nCLKx input
Output skew: 75ps (typical)
Propagation delay: 1.15ns (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 (RoHS 5) and lead-free (RoHS 6)
packages
CC
CC
= 3V to 3.8V, V
= 0V, V
7.5mm x 12.8mm x 2.3mm package body
6.5mm x 4.4mm x 0.92mm package body
EE
= -3V to -3.8V
Pin Assignment
EE
nCLK0A
nCLK0B
nCLK1A
nCLK1B
CLK0A
CLK0B
CLK1A
CLK1B
= 0V
20-Lead TSSOP
20-Lead SOIC
nc
nc
ICS85356I
ICS85356I
M Package
G Package
Top View
Top View
1
2
3
4
5
6
7
8
9
10
©2010 Integrated Device Technology, Inc.
20
19
18
17
16
15
14
13
12
11
V
nQ0
SEL0
COM_SEL
V
nQ1
Q0
SEL1
V
CC
CC
EE
ICS85356I
DATA SHEET

Related parts for ICS85356AGI

ICS85356AGI Summary of contents

Page 1

Differential-to-3.3V Dual LVPECL/ECL Clock Multiplexer General Description The ICS85356I is a dual 2:1 Differential-to-LVPECL ICS Multiplexer. The device has both common select and individual select inputs. When COM_SEL is logic High, HiPerClockS™ the CLKxx input pairs will be passed ...

Page 2

ICS85356I Data Sheet Table 1. Pin Descriptions Number Name 14 CLK0A 2 nCLK0A CLK0B 5 nCLK0B 6 CLK1A 7 nCLK1A 9 CLK1B 10 nCLK1B 12, 13 nQ1,Q1 15, 17 ...

Page 3

ICS85356I Data Sheet Absolute Maximum Ratings NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only. Functional operation of product at these conditions or any conditions beyond those ...

Page 4

ICS85356I Data Sheet Table 4C. Differential DC Characteristics, V Symbol Parameter CLK0A, CLK0B, CLK1A, CLK1B Input I IH High Current nCLK0A, nCLK0B, nCLK1A, nCLK1B CLK0A, CLK0B, CLK1A, CLK1B Input I IL Low Current nCLK0A, nCLK0B, nCLK1A, nCLK1B V Peak-to-Peak Voltage; ...

Page 5

ICS85356I Data Sheet Parameter Measurement Information LVPECL V EE -1.3V ± 0.3V LVPECL Output Load AC Test Circuit nQx nQx nQy nQy tsk(o) Output Skew nCLKxA, nCLKxB CLKxA, CLKxB nQ0, nQ1 Q0 Propagation Delay ...

Page 6

ICS85356I Data Sheet Application Information Wiring the Differential Input to Accept Single-Ended Levels Figure 1 shows how a differential input can be wired to accept single ended levels. The reference voltage V REF the bias resistors R1 and R2. The ...

Page 7

ICS85356I Data Sheet Differential Clock Input Interface The CLK /nCLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL and other differential signals. Both V V and V input requirements. Figures show interface PP CMR examples for the CLK/nCLK input ...

Page 8

ICS85356I Data Sheet Termination for 3.3V LVPECL Outputs The clock layout topology shown below is a typical termination for LVPECL outputs. The two different layouts mentioned are recommended only as guidelines. The differential outputs are low impedance follower outputs that ...

Page 9

ICS85356I Data Sheet Power Considerations This section provides information on power dissipation and junction temperature for the ICS85356I. Equations and example calculations are also provided. 1. Power Dissipation. The total power dissipation for the ICS85356I is the sum of the ...

Page 10

ICS85356I Data Sheet 3. Calculations and Equations. The purpose of this section is to calculate the power dissipation for the LVPECL output pair. LVPECL output driver circuit and termination are shown in Figure Figure 4. LVPECL ...

Page 11

ICS85356I Data Sheet Reliability Information Table 7A. θ vs. Air Flow Table for a 20 Lead SOIC, Forced Convection JA Linear Feet per Minute Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern PCB ...

Page 12

ICS85356I Data Sheet Package Outlines and Package Dimensions Package Outline - G Suffix for 20 Lead TSSOP Table 7A. Package Dimensions All Dimensions in Millimeters Symbol Minimum Maximum 1.20 A1 0.05 0.15 A2 0.80 1.05 b 0.19 ...

Page 13

... ICS85356AGIL 85356AGILFT ICS85356AGIL NOTE: Parts that are ordered with an "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant. While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology (IDT) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use ...

Page 14

ICS85356I Data Sheet Revision History Sheet Rev Table Page 7 Added Differential Clock Input Interface section Ordering Information Table - added Lead Free part number. Updated data sheet format Pin Characteristics Table - changed C T4D ...

Page 15

ICS85356I Data Sheet 6024 Silver Creek Valley Road Sales 800-345-7015 (inside USA) San Jose, California 95138 +408-284-8200 (outside USA) Fax: 408-284-2775 www.IDT.com/go/contactIDT DISCLAIMER Integrated Device Technology, Inc. (IDT) and its subsidiaries reserve the right to modify the products and/or specifications ...

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