|
|
PDF ICS840001-31 Data sheet ( Hoja de datos )
| Número de pieza | ICS840001-31 | |
| Descripción | CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER | |
| Fabricantes | Integrated Circuit Systems | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ICS840001-31 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
|
No Preview Available !
Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS840001-31
FEMTOCLOCKS™CRYSTAL-TO-
LVCMOS/LVTTL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
ICS
The ICS840001-31 is a two output LVCMOS/
LVTTL Synthesizer and a member of the
HiPerClockS™ HiPerClocksTM family of high perfor mance
devices from ICS. One output is the LVCMOS/
LVTTL main synthesized clock output (Q) and one
output is a three-state LVCMOS/LVTTL reference clock
(REF_CLK) output at the frequency of the crystal oscillator.
The device can accept 26.5625MHz and 40MHz crystals and
www.DataSheect4aUn.cosmynthesize 106.25MHz or 100MHz outputs. The
ICS840001-31 has excellent <1ps phase jitter performance
over the 637kHz – 10MHz integration range. The ICS840001-
31 is packaged in a 3mm x 3mm 16-pin VFQFN, making it
ideal for use on space constrained boards.
FEATURES
• (2) LVCMOS/LVTTL outputs, 20Ω typical output impedence
(1) Main clock output (Q)
(1) Three-state reference clock output (REF_CLK)
• Crystal oscillator interface can accept 26.5625MHz or
40MHz 18pF parallel resonant crystals
• Output frequency range: 106.25MHz or 100MHz
• VCO range: 490MHz to 640MHz
• RMS phase jitter @ 106.25MHz, using a 26.5625MHz crystal
(637kHz - 10MHz): 0.38ps (typical)
• 3.3V operating supply
• 0°C to 70°C ambient operating temperature
FUNCTION TABLE
Inputs
Crystal
M
OE
26.5625
0
0
40 1 (or Floating) 1 (or Floating)
VCO
(MHz)
637.5
600
Outputs
Q REF_CLK
Frequency (MHz) Frequency (MHz)
Application
106.25
High-Z
Fibre Channel
100 40 Serial Attached (SCSI)
BLOCK DIAGRAM
OE (Pullup)
XTAL_IN
XTAL_OUT
OSC
M (Pullup)
Phase
Detector
VCO
490MHz - 640MHz
1 = ÷15 (default)
0 = ÷24
÷6
PIN ASSIGNMENT
REF_CLK
16 15 14 13
OE 1
12 Q
XTAL_IN 2
1 1 VDDO
Q XTAL_OUT 3
10 GND
M4
9 VDD
5678
ICS840001-31
16-Lead VFQFN
3mm x 3mm x 0.95 package body
K Package
Top View
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
840001AK-31
www.icst.com/products/hiperclocks.html
REV. A MAY 4, 2005
1
1 page  
Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS840001-31
FEMTOCLOCKS™CRYSTAL-TO-
LVCMOS/LVTTL FREQUENCY SYNTHESIZER
PARAMETER MEASUREMENT INFORMATION
1.65V ± 5%
VDD,
www.DataSheet4UV.cDDoAm,
VDDO
LVCMOS
GND
-1.65V ± 5%
SCOPE
Qx
Phase Noise Plot
Phase Noise Mask
f1 Offset Frequency f2
RMS Jitter = Area Under the Masked Phase Noise Plot
3.3V OUTPUT LOAD AC TEST CIRCUIT
RMS PHASE JITTER
V
DD
Q0 2
t PW
t
PERIOD
odc = t PW x 100%
t PERIOD
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
20%
Clock
Outputs
80%
tR
80%
tF
20%
OUTPUT RISE/FALL TIME
840001AK-31
www.icst.com/products/hiperclocks.html
5
REV. A MAY 4, 2005
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet ICS840001-31.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ICS840001-31 | CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER | Integrated Circuit Systems |
| ICS840001-32 | CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER | Integrated Circuit Systems |
| ICS840001-34 | CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER | Integrated Circuit Systems |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |