ICS8547AY IDT, Integrated Device Technology Inc, ICS8547AY Datasheet

IC CLK BUFFER DIFF-LVDS 48-LQFP

ICS8547AY

Manufacturer Part Number
ICS8547AY
Description
IC CLK BUFFER DIFF-LVDS 48-LQFP
Manufacturer
IDT, Integrated Device Technology Inc
Series
HiPerClockS™r
Type
Fanout Buffer (Distribution)r
Datasheet

Specifications of ICS8547AY

Number Of Circuits
6
Ratio - Input:output
1:2
Differential - Input:output
Yes/Yes
Input
HCSL, LVDS, LVHSTL, LVPECL, SSTL
Output
LVDS
Frequency - Max
700MHz
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
0°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
48-LQFP
Frequency-max
700MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
800-1187
8547AY
B
ICS8547AY
G
ICS8547 provides a low power, low noise, point-to-point solu-
tion for distributing clock signals over controlled impedances
of 100 . The ICS8547 has six selectable clock inputs. The
CLKx, nCLKx pairs can accept any differential input levels
and translates them to 3.3V LVDS output levels.
Guaranteed output and part-to-part skew specifications make
the ICS8547 ideal for those applications demanding well
defined performance and repeatability.
HiPerClockS™
nCLK0
nCLK1
nCLK2
nCLK3
nCLK4
nCLK5
,&6
CLK0
CLK1
CLK2
CLK3
CLK4
CLK5
LOCK
ENERAL
D
The ICS8547 is a Hex low skew, high perfor-
mance 1-to-2 Differential-to-LVDS Clock Buffer
and a member of the HiPerClockS™ family of High
Performance Clock Solutions from ICS. Utilizing
Low Voltage Differential Signaling (LVDS) the
IAGRAM
D
ESCRIPTION
www.icst.com/products/hiperclocks.html
Q0A
nQ0A
Q0B
nQ0B
Q1A
nQ1A
Q1B
nQ1B
Q2A
nQ2A
Q2B
nQ2B
Q3A
nQ3A
Q3B
nQ3B
Q4A
nQ4A
Q4B
nQ4B
Q5A
nQ5A
Q5B
nQ5B
1
P
F
12 LVDS outputs
Selectable CLKx, nCLKx inputs
CLKx, nCLKx pair can accept the following differential
input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL
Maximum output frequency: 700MHz
Translates any differential input signal (LVPECL, LVHSTL,
SSTL, DCM) to LVDS levels without external bias networks
Translates any single-ended input signal to LVDS
with resistor bias on nCLKx input
Output skew: 250ps (maximum)
Bank skew: 15ps (maximum)
Part-to-part skew: 500ps (maximum)
Propagation delay: 1.8ns (maximum)
3.3V operating supply
0°C to 85°C ambient operating temperature
Industrial temperature information available upon request
EATURES
IN
D
nCLK4
nCLK5
nQ4A
nQ4B
CLK4
CLK5
nQ5B
nQ5A
IFFERENTIAL
A
Q4A
Q4B
Q5B
Q5A
SSIGNMENT
7mm x 7mm x 1.4mm package body
1
2
3
4
5
6
7
8
9
10
11
12
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
-
48-Lead LQFP
TO
ICS8547
Y Package
Top View
H
-LVDS C
EX
, L
OW
LOCK
S
REV. A FEBRUARY 4, 2003
ICS8547
KEW
36
35
34
33
32
31
30
29
28
27
26
25
B
, 1-
Q2A
nQ2A
nQ2B
Q2B
nCLK2
CLK2
CLK1
nCLK1
Q1B
nQ1B
nQ1A
Q1A
UFFERS
TO
-2

Related parts for ICS8547AY

ICS8547AY Summary of contents

Page 1

... CLK1 nCLK1 CLK2 nCLK2 CLK3 nCLK3 CLK4 nCLK4 CLK5 nCLK5 ICS8547AY D IFFERENTIAL F EATURES 12 LVDS outputs Selectable CLKx, nCLKx inputs CLKx, nCLKx pair can accept the following differential input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL Maximum output frequency: 700MHz Translates any differential input signal (LVPECL, LVHSTL, ...

Page 2

... ABLE IN ESCRIPTIONS ICS8547AY D IFFERENTIAL www.icst.com/products/hiperclocks.html 2 ICS8547 KEW - -LVDS C TO LOCK REV. A FEBRUARY 4, 2003 , UFFERS ...

Page 3

... ABLE IN HARACTERISTICS ABLE LOCK NPUT UNCTION ABLE ICS8547AY D IFFERENTIAL " www.icst.com/products/hiperclocks.html 3 ICS8547 KEW - -LVDS LOCK REV. A FEBRUARY 4, 2003 -2 TO UFFERS " ...

Page 4

... ICS8547AY D IFFERENTIAL 4.6V NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the -0. 0 device. These ratings are stress specifications only. Functional -0. 0.5V operation of product at these conditions or any conditions be- DDO yond those listed in the DC Characteristics or AC Character- 47.9° ...

Page 5

... ABLE HARACTERISTICS ICS8547AY D IFFERENTIAL = 3.3V±5 0°C 85° DDO ƒ ƒ < ƒ www.icst.com/products/hiperclocks.html 5 ICS8547 KEW - -LVDS LOCK REV. A FEBRUARY 4, 2003 , UFFERS ...

Page 6

... QxA, nQxA QxA, nQxA QxB, nQxB QxB, nQxB tsk( ANK KEW nQxA, nQxB QxA, QxB Pulse Width t PERIOD t PW odc = t PERIOD odc & ERIOD ICS8547AY D IFFERENTIAL M I EASUREMENT NFORMATION V DD nCLKx SCOPE CLKx nQx GND D I IFFERENTIAL NPUT nQx Qx nQy Qy tsk(o) ...

Page 7

... V DD LVDS DC Input / VOD ETUP LVDS DC Input I S ETUP OS LVDS I S ETUP OFF ICS8547AY D IFFERENTIAL V DD out LVDS 100 Input OD OD out / VOS ETUP out I OS LVDS DC Input I OSB out I S ETUP OSD OFF www.icst.com/products/hiperclocks.html 7 ICS8547 KEW TO - -LVDS LOCK UFFERS out ...

Page 8

... 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 circuit should be located as close as possible to the input pin. The ratio F IGURE ICS8547AY D IFFERENTIAL A I PPLICATION NFORMATION ...

Page 9

... S CLK/ CLK I IGURE I ER LOCK N 3.3V LVPECL D RIVER ICS8547AY D IFFERENTIAL examples only. Please consult with the vendor of the driver com- and V must meet the ponent to confirm the driver termination requirements. For ex- OH ample in Figure 2, the input termination applies for ICS HiPerClockS LVHSTL drivers. If you are using an LVHSTL driver from another vendor, use their termination recommendation ...

Page 10

... 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 ICS8547 is: 1117 ICS8547AY D IFFERENTIAL line environment. For buffer with multiple LDVS driver rec- single) transmission ommended to terminate the unused outputs. ...

Page 11

... ACKAGE UTLINE UFFIX ABLE Reference Document: JEDEC Publication 95, MS-026 ICS8547AY D IFFERENTIAL D ACKAGE IMENSIONS ° www.icst.com/products/hiperclocks.html 11 ICS8547 KEW - -LVDS C TO LOCK ° REV. A FEBRUARY 4, 2003 , UFFERS ...

Page 12

... Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or critical medical instruments. ICS8547AY D IFFERENTIAL ...

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