|
|
PDF ICS650R-21 Data sheet ( Hoja de datos )
| Número de pieza | ICS650R-21 | |
| Descripción | System Peripheral Clock Source | |
| Fabricantes | Integrated Circuit Systems | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ICS650R-21 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
|
No Preview Available !
( DataSheet : www.DataSheet4U.com )
PRELIMINARY INFORMATION
ICS650-21
System Peripheral Clock Source
Description
The ICS650-21 is a low cost, low jitter, high
performance clock synthesizer for system
peripheral applications. Using analog/digital
Phase-Locked Loop (PLL) techniques, the device
accepts a parallel resonant 25 MHz crystal input to
produce up to eight output clocks. The device
provides clocks for PCI, SCSI, Fast Ethernet,
Ethernet, USB, and AC97. The user can select one
of three USB frequencies, and also one of two
AC97 audio frequencies. The OE pin puts all
outputs into a high impedance state for board level
testing. All frequencies are generated with less than
one ppm error, meeting the demands of SCSI and
Ethernet clocking.
The ICS650 can be mask customized to produce
any frequencies from 1 to 150 MHz.
Block Diagram
Features
• Packaged in 20 pin tiny SSOP (QSOP)
• Lower jitter version of ICS650-01
• Operating VDD of 3.3V or 5V
• Zero ppm synthesis error in all clocks
• Inexpensive 25 MHz crystal or clock input
• Provides Ethernet and Fast Ethernet clocks
• Provides SCSI clocks
• Provides PCI clocks
• Selectable AC97 audio clock
• Selectable USB clock
• OE pin tri-states the outputs for testing
• Selectable frequencies on three clocks
• Duty cycle of 45/55 for Processor clock and Audio
clock
• Advanced, low power CMOS process
PSEL1:0
ASEL
USEL
25 MHz
crystal
or clock
X1/ICLK
X2
2
Crystal
Oscillator
Clock
Synthesis
Circuitry
Output
Buffer
Output
Buffer
Output
Buffers
Output
Buffers
Output
Buffer
3
Processor Clocks
(Fast Ethernet,
SCSI, PCI )
Audio Clock
USB Clock
20 MHz
25 MHz
Output Enable (all outputs)
MDS 650-21 A
1
Revision 010301
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408) 295-9800tel • www.icst.com
www.DataSheet4U.com
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet ICS650R-21.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ICS650R-21 | System Peripheral Clock Source | Integrated Circuit Systems |
| ICS650R-22 | PVR and STB Clock Source | Integrated Circuit Systems |
| ICS650R-27 | Networking Clock Source | 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 |