ics841s04 Integrated Device Technology, ics841s04 Datasheet
ics841s04
Manufacturer Part Number
ics841s04
Description
Programmable Low-jitter Xtal Or Lvcmos-input Hcsl-output 4-output 100-mhz Clock Synthesizer
Manufacturer
Integrated Device Technology
Datasheet
1.ICS841S04.pdf
(16 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ics841s04BGILF
Manufacturer:
IDT
Quantity:
210
B
PCI EXPRESS™ CLOCK GENERATOR
G
input reference of 25MHz. The input reference may be derived
from an external source or by the addition of a 25MHz crystal to
the on-chip crystal oscillator. An external reference may be applied
to the XTAL_IN pin with the XTAL_OUT pin left floating.
The device offers spread spectrum clock output for reduced EMI
applications. An I
spread spectrum operation as well as select either a down spread
value of -0.35% or -0.5%.
The ICS841S04I is available in both standard and lead-free
24-Lead TSSOP packages.
XTAL_OUT
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.
IDT
HiPerClockS™
IC S
XTAL_IN
SDATA
LOCK
SCLK
ENERAL
™
IREF
/ ICS
Pullup
Pullup
™
25MHz
PCI EXPRESS™ CLOCK GENERATOR
D
The ICS841S04I is a PLL-based clock generator
specifically designed for PCI_Express™Clock
Generation applications. This device generates a
100MHz HCSL clock. The device offers a HCSL
(Host Clock Signal Level) clock output from a clock
IAGRAM
OSC
D
2
C bus interface is used to enable or disable
ESCRIPTION
Logic
PLL
I
2
C
Network
Divider
SRCT[1:4]
SRCC[1:4]
1
F
Four 0.7V current mode differential HCSL output pairs
Crystal oscillator interface, 25MHz
Output frequency: 100MHz
RMS period jitter: 3ps (maximum)
Output skew: 70ps (maximum)
Cycle-to-cyle jitter: 35ps (maximum)
I
Spread Spectrum for electromagnetic interference (EMI)
reduction
3.3V operating supply mode
-40°C to 85°C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
EATURES
2
C support with readback capabilities up to 400kHz
P
4.40mm x 7.8mm x 0.92mm
V
V
V
V
V
SRCC3
SRCC2
SRCC1
SRCT3
SRCT2
SRCT1
IN
DD
DD
SS
SS
SS
IREF
_
_
_
_
_
SRC
SRC
SRC
SRC
SRC
ICS841S04BGI REV. C MAY 23, 2007
A
24-Lead TSSOP
ICS841S04I
package body
G Package
SSIGNMENT
Top View
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
PRELIMINARY
ICS841S04I
SRCC4
SRCT4
V
SDATA
SCLK
XTAL_OUT
XTAL_IN
V
V
nc
V
V
DD
DD
SS
DDA
SSA
_
_
_
REF
SRC
REF
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