ics844011 Integrated Device Technology, ics844011 Datasheet

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ics844011

Manufacturer Part Number
ics844011
Description
Fibre Channel Xtal Lvds Output 1-output 113.33-mhz Max Clock Generator
Manufacturer
Integrated Device Technology
Datasheet
FEMTOCLOCKS™ CRYSTAL-TO-LVDS
CLOCK GENERATOR
C
B
XTAL_OUT
IDT
G
applications, a 26.5625MHz crystal is used. The ICS844011
has excellent <1ps phase jitter performance, over the 637kHz
- 10MHz integration range. The ICS844011 is packaged in a
small 8-pin TSSOP, making it ideal for use in systems with
limited board space.
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
HiPerClockS™
C
IC S
OMMON
XTAL_IN
LOCK
y r
ENERAL
/ ICS
t s
OE
l a
C
F
Pullup
2
LVDS CLOCK GENERATOR
ONFIGURATION
e r
6
D
The ICS844011 is a Fibre Channel Clock Generator
and a member of the HiPerClocks
performance devices from IDT. The ICS844011
uses an 18pF parallel resonant crystal over the
range of 20.4MHz - 28.3MHz. For Fibre Channel
5 .
q
2
u
5
IAGRAM
6
D
e
2
n
5
OSC
c
ESCRIPTION
y
(
M
H
T
) z
ABLE
Detector
Phase
n I
p
- F
2
2
u
M
M = ÷24
4
4
s t
IBRE
490MHz - 680MHz
C
(fixed)
HANNEL
N
6
6
VCO
TM
M
u
V
family of high
i t l
a
u l
l p
e
4
4
c i
M
t a
N = ÷6
N /
o i
n
(fixed)
O
1
u
F
p t
One differential LVDS output
Crystal oscillator interface, 18pF parallel resonant crystal
(20.4MHz - 28.3MHz)
Output frequency range: 81.66MHz - 113.33MHz
VCO range: 490MHz - 680MHz
RMS phase jitter @ 106.25MHz, using a 26.5625MHz crystal
(637kHz - 10MHz): 0.75ps (typical)
3.3V or 2.5V operating supply
0°C to 70°C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
EATURES
t u
1
(
M
0
1
F
6
0
H
e r
2 .
0
) z
q
5
Q
nQ
u
e
n
c
y
ICS844011AG REV A OCTOBER 6, 2006
P
XTAL_OUT
4.40mm x 3.0mm x 0.925mm
IN
XTAL_IN
GND
V
A
DDA
8-Lead TSSOP
PRELIMINARY
ICS844011
package body
SSIGNMENT
G Package
Top View
ICS844011
1
2
3
4
8
7
6
5
V
Q
nQ
OE
DD

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ics844011 Summary of contents

Page 1

... For Fibre Channel applications, a 26.5625MHz crystal is used. The ICS844011 has excellent <1ps phase jitter performance, over the 637kHz - 10MHz integration range. The ICS844011 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space. C ...

Page 2

... ICS844011AG REV A OCTOBER 6, 2006 ...

Page 3

... ICS844011AG REV A OCTOBER 6, 2006 µ A µ A ...

Page 4

... ICS844011AG REV A OCTOBER 6, 2006 ...

Page 5

... I NFORMATION 2.5V±5% LVDS - UTPUT OAD EST IRCUIT PERIOD t PW odc = x 100% t PERIOD UTY YCLE ULSE IDTH ERIOD V DD out LVDS out ➤ OLTAGE ETUP ICS844011AG REV A OCTOBER 6, 2006 PRELIMINARY SCOPE Qx nQx ➤ ...

Page 6

... ILTERING ECHNIQUES As in any high speed analog circuitry, the power supply pins are vulnerable to random noise. The ICS844011 provides sepa- rate power supplies to isolate any high switching noise from the outputs to the internal PLL individually connected to the power supply plane through vias, and bypass capacitors should be used for each pin ...

Page 7

... For a multiple LVDS outputs buffer, if only partial outputs are used recommended to terminate the across near unused outputs. LVDS_Driv er R1 100 100 Ohm Differential Transmission Line LVDS D IGURE YPICAL RIVER 7 PRELIMINARY .1uf XTAL_IN XTAL_OUT XTAL I I NPUT NTERFACE 2. ERMINATION ICS844011AG REV A OCTOBER 6, 2006 applications, R1 ...

Page 8

... ABLE VS IR LOW ABLE FOR JA Multi-Layer PCB, JEDEC Standard Test Boards T C RANSISTOR OUNT The transistor count for ICS844011 is: 2533 IDT ™ / ICS ™ LVDS CLOCK GENERATOR R I ELIABILITY NFORMATION 8 L TSSOP EAD by Velocity (Meters per Second 101.7°C/W ...

Page 9

... ° Reference Document: JEDEC Publication 95, MO-153 ° ICS844011AG REV A OCTOBER 6, 2006 PRELIMINARY ...

Page 10

... ICS844011AG REV A OCTOBER 6, 2006 PRELIMINARY ° ° ° ° ...

Page 11

... ICS844011 FEMTOCLOCKS™ CRYSTAL-TO-LVDS CLOCK GENERATOR Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 (outside U.S.) © ...

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