ICS843241I-04 Datasheet, PDF (1/14 Pages) Integrated Device Technology – FEMTOCLOCKS™ CRYSTAL-TO-3.3V, 2.5V LVPECL CLOCK GENERATOR

PRELIMINARY
FEMTOCLOCKS™ CRYSTAL-TO-3.3V,
2.5V LVPECL CLOCK GENERATOR
GENERAL DESCRIPTION
The ICS843241I-04 is a Serial ATA (SATA)/Serial
ICS
Attached SCSI (SAS) Clock Generator and a
HiPerClockS™ _{member of the HiPerClocks} TM _{family of high}
perfor mance devices from IDT. For SATA/SAS
applications, a 25MHz crystal is used to produce
150MHz. The ICS843241I-04 is packaged in a small 8-pin TSSOP,
making it ideal for use in systems with limited board space.
ICS843241I-04
FEATURES
• One differential LVPECL output
• Crystal oscillator interface, 18pF parallel resonant crystal
(20.833MHz - 28.3MHz)
• Maximum output frequency: 150MHz
• VCO range: 500MHz - 680MHz
• RMS phase jitter @ 150MHz, using a 25MHz crystal
(12kHz - 20MHz): 1.2ps (typical)
• 3.3V or 2.5V operating supply
• -40°C to 85°C ambient operating temperature
• Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
BLOCK DIAGRAM
XTAL_IN
OSC
Phase
Detector
VCO
500MHz - 680MHz
N Divider
÷4
Q
nQ
XTAL_OUT
M = ÷24 (fixed)
PIN ASSIGNMENT
VCCA 1
XTAL_OUT 2
XTAL_IN 3
VEE 4
8 VCC
7Q
6 nQ
5 nc
ICS843241I-04
8-Lead TSSOP
4.4mm x 3.0mm x 0.925mm
package body
G Package
Top View
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^™ / ICS^™ 150MHZ, 3.3V, 2.5V LVPECLCLOCK GENERATOR
1
ICS843241AGI-04 REV. A MAY 1, 2008