ICS83940BY IDT, Integrated Device Technology Inc, ICS83940BY Datasheet

ICS83940BY

Manufacturer Part Number
ICS83940BY
Description
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Driverr
Datasheet

Specifications of ICS83940BY

Number Of Clock Inputs
2
Output Frequency
250MHz
Output Logic Level
LVCMOS/LVTTL
Operating Supply Voltage (min)
2.375V
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
3.465V
Package Type
LQFP
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
32
Lead Free Status / Rohs Status
Not Compliant

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Part Number
Manufacturer
Quantity
Price
Part Number:
ICS83940BYLF
Manufacturer:
IDT, Integrated Device Technology Inc
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Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
G
The ICS83940 is a low skew, 1-to-18 LVPECL-to-LVCMOS/
LVTTL Fanout Buffer. The ICS83940 has twoselectable
clock inputs. The PCLK, nPCLK pair can accept LVPECL,
CML, or SSTL input levels. The LVCMOS_CLK can accept
LVCMOS or LVTTL input levels. The low impedance
LVCMOS/LVTTL outputs are designed to drive 50Ω series
or parallel terminated transmission lines.
The ICS83940 is characterized at full 3.3V, full 2.5V and
mixed 3.3V input and 2.5V output operating supply modes.
Guaranteed output and part-to-part skew characteristics
make the ICS83940 ideal for those clock distribution
applications demanding well defined performance and
repeatability.
B
83940BY
LVCMOS_CLK
LOCK
ENERAL
CLK_SEL
nPCLK
PCLK
D
IAGRAM
D
ESCRIPTION
0
1
18
Q0:Q17
www.idt.com
LVPECL-
1
P
F
• Eighteen LVCMOS/LVTTL outputs, 16Ω typical output
• Selectable LVCMOS_CLK or LVPECL clock inputs
• PCLK, nPCLK supports the following input types:
• LVCMOS_CLK accepts the following input levels:
• Maximum output frequency: 250MHz
• Output skew: 150ps (maximum)
• Part to part skew: 750ps (maximum)
• Full 3.3V or 2.5V supply modes
• 0°C to 70°C ambient operating temperature
• Industrial temperature information available upon request
• Lead-Free package fully RoHS compliant
impedance
LVPECL, CML, SSTL
LVCMOS or LVTTL
IN
EATURES
LVCMOS_CLK
A
TO
CLK_SEL
SSIGNMENT
nPCLK
-LVCMOS/LVTTL F
PCLK
GND
GND
V
V
DDO
DD
7mm x 7mm x 1.4mm package body
1
2
3
4
5
6
7
8
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
32-Lead LQFP
ICS83940
Y Pacakge
Top View
L
OW
S
ICS83940
ANOUT
REV. A NOVEMBER 17, 2010
KEW
24
23
22
21
20
19
18
17
, 1-
B
Q6
Q7
Q8
V
Q9
Q10
Q11
GND
TO
UFFER
DD
-18

Related parts for ICS83940BY

ICS83940BY Summary of contents

Page 1

G D ENERAL ESCRIPTION The ICS83940 is a low skew, 1-to-18 LVPECL-to-LVCMOS/ LVTTL Fanout Buffer. The ICS83940 has twoselectable clock inputs. The PCLK, nPCLK pair can accept LVPECL, CML, or SSTL input levels. The LVCMOS_CLK can accept LVCMOS or LVTTL ...

Page 2

ABLE IN ESCRIPTIONS ...

Page 3

BSOLUTE AXIMUM ATINGS Supply Voltage Inputs, V -0. Outputs, V -0. Package Thermal Impedance, θ JA Storage Temperature, T -65°C to 150°C STG T 4A ...

Page 4

T 5A ABLE HARACTERISTICS ...

Page 5

T 4D ABLE HARACTERISTICS ...

Page 6

P ARAMETER 1.65V± DDx LVCMOS GND -1.65V±5% 3. UTPUT OAD EST IRCUIT V DD nPCLK V Cross Points PP PCLK GND IFFERENTIAL NPUT EVEL PART 1 V DDx ...

Page 7

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 8

LVPECL LOCK NPUT NTERFACE The PCLK /nPCLK accepts LVPECL, CML, SSTL and other differential signals. Both V and V SWING and V input requirements. Figures show interface CMR examples for the PCLK/nPCLK input driven ...

Page 9

ABLE VS IR LOW ABLE FOR JA θ θ θ θ θ Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern PCB designs use multi-layered boards. The ...

Page 10

ACKAGE UTLINE UFFIX FOR ABLE ACKAGE ...

Page 11

ABLE RDERING NFORMATION ...

Page 12

...

Page 13

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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