ICS85357AG-01 IDT, Integrated Device Technology Inc, ICS85357AG-01 Datasheet

ICS85357AG-01

Manufacturer Part Number
ICS85357AG-01
Description
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Multiplexerr
Datasheet

Specifications of ICS85357AG-01

Number Of Clock Inputs
4/2
Mode Of Operation
Differential
Output Frequency
750MHz
Output Logic Level
ECL/LVPECL
Operating Supply Voltage (min)
-3.135/3.135V
Operating Supply Voltage (typ)
-3.3/3.3V
Operating Supply Voltage (max)
-3.465/3.465V
Package Type
TSSOP
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
20
Lead Free Status / RoHS Status
Not Compliant

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G
The ICS85357-01 is a 4:1 or 2:1 Differential-to-3.3V
LVPECL / ECL clock multiplexer which can operate up to
750MHz. The ICS85357-01 has 4 selectable clock inputs.
The CLK, nCLK pair can accept most standard differential
input levels. The device can operateusing a 3.3V LVPECL
(V
= -3.135V to -3.465V). The fully differential architecture and
low propagation delay make itideal for use in clock
distribution circuits. The select pins have internal pulldown
resistors. Leaving one input unconnected (pulled to logic
low by the internal resistor) will transformthe device into a
2:1 multiplexer. 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., 00selects CLK0, nCLK0).
B
85357AG-01
EE
LOCK
ENERAL
= 0V, V
nCLK0
nCLK1
nCLK2
nCLK3
CLK0
CLK1
CLK2
CLK3
CC
D
= 3.135V to 3.465V) or 3.3V ECL (V
IAGRAM
D
ESCRIPTION
00
01
10
11
SEL1 SEL0
D
IFFERENTIAL
CC
Q0
nQ0
= 0V, V
www.idt.com
-
EE
TO
1
-3.3V LVPECL / ECL C
F
P
High speed differential multiplexer. The device can be
configured as either a 4:1 or 2:1 multiplexer
One differential 3.3V LVPECL output
Four selectable CLK, nCLK inputs
CLK, nCLK pair can accept the following differential
input levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL
Maximum output frequency: 750MHz
Translates any single ended input signal to 3.3V
LVPECL levels with resistor bias on nCLKx input
Part-to-part skew: 150ps (maximum)
Propagation delay: 1.5ns (maximum)
LVPECL mode operating voltage supply range:
V
ECL mode operating voltage supply range:
V
0°C to 70°C ambient operating temperature
Lead-Free package fully RoHS compliant
EATURES
IN
CC
CC
= 3.135V to 3.465V, V
= 0V, V
A
4.40mm x 6.50mm x 0.90mm body package
SSIGNMENT
EE
= -3.135V to -3.465V
nCLK0
nCLK1
nCLK2
nCLK3
CLK0
CLK1
CLK2
CLK3
V
V
CC
ICS85357-01
EE
20-Lead TSSOP
G Package
Top View
1
2
3
4
5
6
7
8
9
10
EE
= 0V
20
19
18
17
16
15
14
13
12
11
ICS85357-01
LOCK
V
SEL1
SEL0
V
Q0
nQ0
V
nc
nc
V
CC
CC
CC
EE
M
4:1
ULTIPLEXER
REV. B JULY 29, 2010
OR
2:1

Related parts for ICS85357AG-01

ICS85357AG-01 Summary of contents

Page 1

G D ENERAL ESCRIPTION The ICS85357- 4:1 or 2:1 Differential-to-3.3V LVPECL / ECL clock multiplexer which can operate up to 750MHz. The ICS85357-01 has 4 selectable clock inputs. The CLK, nCLK pair can accept most standard differential input ...

Page 2

ABLE IN ESCRIPTIONS ...

Page 3

BSOLUTE AXIMUM ATINGS Supply Voltage Inputs, V -0. Outputs Continuous Current 50mA Surge Current 100mA Package Thermal Impedance, JA Storage Temperature, T -65°C to 150°C STG T 4A ...

Page 4

T 4D. LVPECL DC C ABLE HARACTERISTICS ...

Page 5

P ARAMETER LVPECL V EE -1.3V ± 0.165V 3. UTPUT OAD EST IRCUIT nQx PART 1 Qx nQy PART 2 Qy tsk(pp ART TO ART KEW 80% Clock ...

Page 6

IRING THE IFFERENTIAL NPUT TO Figure 1 shows how the differential input can be wired to accept single ended levels. The reference voltage V_REF ~ V generated by the bias resistors R1, R2 and C1. This bias ...

Page 7

IFFERENTIAL LOCK NPUT NTERFACE The CLK /nCLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL and other differential signals. Both V SWING the V and V input requirements. Figures show PP CMR interface examples for ...

Page 8

This section provides information on power dissipation and junction temperature for the ICS85357-01. Equations and example calculations are also provided. 1. Power Dissipation. The total power dissipation for the ICS85357-01 is the sum of the core power plus the power ...

Page 9

Calculations and Equations. LVPECL output driver circuit and termination are shown in Figure 4. F IGURE T o calculate worst case power dissipation into the load, use the following equations which assume a 50 load, and a termination voltage ...

Page 10

ABLE VS IR LOW ABLE FOR JA 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 ...

Page 11

ACKAGE UTLINE UFFIX FOR T ABLE Reference Document: JEDEC Publication 95, MO-153 85357AG- -3.3V LVPECL / ECL C IFFERENTIAL TO TSSOP EAD ACKAGE IMENSIONS ...

Page 12

ABLE RDERING NFORMATION ...

Page 13

...

Page 14

We’ve Got Your Timing Solution. 6024 Silver Creek Valley Road San Jose, CA 95138 © 2010 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT, the IDT logo, ICS and HiPerClockS are trademarks of ...

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