|
|
PDF ASM3P2856A Data sheet ( Hoja de datos )
| Número de pieza | ASM3P2856A | |
| Descripción | Custom Clock generator | |
| Fabricantes | PulseCore Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ASM3P2856A (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
www.DataSheet4U.com
November 2006
rev0.1
Features
Custom Clock generator for LCD Projector
Product Description
ASM3P2856A
ASM3P2856B
• Custom Clock Generator for LCD Projector
• Generates EMI optimized clock signals for
LCD Projector system
• Uses an inexpensive 14.7456 MHz crystal for
generating the required Outputs
• Frequency outputs:
• CLK1 : 27.002MHz (± 20 ppm)
• CLK2 : 14.7456MHz (Zero ppm)
• CLK3 : 65MHz (± 15 ppm)
• CLK4,CLK5 : 65MHz (±15 ppm) Spread
Spectrum Clock
• ASM3P2856A: +/- 1% centre spread
ASM3P2856B: selectable +/-1.0% & +/-1.5%
Centre Spread option
• Supply voltage range 3.3V ± 0.3V.
• Available in 16 Pin TSSOP
• Available in Commercial Temperature range
ASM3P2856A/B generate the required four custom clock
frequencies for the LCD Projector. An inexpensive
14.7456MHz crystal is used to generate a 14.7456MHz
used by the microcomputer, a 27MHz used by Video, a
non-spread 65MHz, and a centre spread 65MHz clock used
by the LCD projector system. The spread spectrum clock
has +/- 0.5% or +/- 1% spread options. The spread
spectrum clock of ASM3P2856A/B reduces electromagnetic
interference (EMI) at the clock source. This allows
significant system cost savings by reducing the number of
circuit board layers and shielding that are required to pass
EMI regulations.
Applications
ASM3P2856A/B is targeted for use in LCD Projectors.
Block Diagram
VDD SSON SS%
XIN
XOUT
Crystal
Oscillator
CLK1
CLK2
PLL CLK3
CLK4
CLK5
GND
PulseCore Semiconductor Corporation
1715 S. Bascom Ave Suite 200 Campbell, CA 95008 • Tel: 408-879-9077 • Fax: 408-879-9018
www.pulsecoresemi.com
Notice: The information in this document is subject to change without notice.
1 page  
November 2006
rev 0.1
AC Electrical Characteristics
Symbol
Parameter
XIN
FOUT
fd
tLH*
tHL *
tJC
tD
Input frequency
Output frequency
Frequency Deviation
(CLK4, CLK5 )
CLK1
CLK2
CLK3
CLK4 (SS Clock )
CLK5 (SS Clock )
For SS% = 0
For SS% = 1
Output rise time (measured from 0.8 to 2.0V)
Output fall time (measured at 2.0V to 0.8V)
Jitter (Cycle to cycle)
Output duty cycle
* tLH and tHL are measured into a capacitive load of 15pF
www.DataSheet4U.com
ASM3P2856A
ASM3P2856B
Min Typ Max Unit
-
14.7456
-
MHz
-
27.002
-
-
14.7456
-
- 65 -
65
65
-
± 1.0
-
± 1.5
MHz
%
- 1.4 - nS
- 1.2 - nS
-
TBD
-
pS
40 50 60 %
Custom Clock generator for LCD Project
Notice: The information in this document is subject to change without notice.
5 of 8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet ASM3P2856A.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ASM3P2856A | Custom Clock generator | PulseCore Semiconductor |
| ASM3P2856B | Custom Clock generator | PulseCore Semiconductor |
| 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 |