|
|
Número de pieza | ICS650-44 | |
Descripción | Spread Spectrum Clock Synthesizer | |
Fabricantes | Integrated Circuit Systems | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de ICS650-44 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
No Preview Available ! P R E L I M I N A RY I N F O R M AT I O N
ICS650-44
Spread Spectrum Clock Synthesizer
Description
The ICS650-44 is a spread spectrum clock synthesizer
intended for video projector and digital TV applications.
It generates three copies of an EMI optimized 50 MHz
clock signal (EMI peak reduction of 7 to 14 dB on 3rd
through 19th harmonics) through the use of Spread
Spectrum techniques from a 25 MHz crystal or clock
input. The modulation rate is 50 kHz.
Features
• Packaged in 16-pin TSSOP (173 mil)
• Supply voltages: VDD = 3.3 V, VDDO = 2.5 V
• Peak-to-peak jitter: ±125 ps typ
• Output duty cycle 45/55% (worst case)
• 25 MHz crystal or reference clock input
• Zero (0) ppm frequency error on all output clocks
• Advanced, low-power CMOS process
• Industrial temperature range (-40 to +85°C)
• Available in Pb (lead) free package
Block Diagram
25 MHz crystal
or clock input
X1/CLKIN
X2
External capacitors are
required with a crystal
input.
FS3:0
Crystal
OSC
Control
Logic
VDD
3
VDDO
PLL with
Spread
Spectrum
50M
50M
50M
GND 2
PDTS
MDS 650-44 C
1
Revision 080305
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
1 page P R E L I M I N A RY I N F O R M AT I O N
ICS650-44
Spread Spectrum Clock Synthesizer
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±5%, VDDO = 2.5 V ±5% , Ambient Temperature -40 to +85°C
Parameter
Symbol
Conditions
Min. Typ. Max. Units
no load
IDD
27 mA
Operating Supply Current
IDDO
PDTS = 0, no load
no load
PDTS = 0, no load
40 uA
4 mA
1 uA
Input High Voltage
Input Low Voltage
Input High Voltage
VIH FS3:0, PDTS
VIL FS3:0, PDTS
VIH X1/CLKIN
2
0.7 x
VDD
V
0.8 V
V
Input Low Voltage
VIL X1/CLKIN
0.3 x
VDD
V
Output High Voltage
Output Low Voltage
Short Circuit Current
Nominal Output
Impedance
VOH
VOL
IOS
ZO
IOH = -4 mA
IOL = 4 mA
1.8 V
0.6 V
±50 mA
20 Ω
Internal Pull-up Resistor
Input Leakage Current
Internal Pull-down
Resistor
RPU FS3:0, PDTS
II FS3:0, PDTS, VIN=VDD
RPD CLK outputs
360 kΩ
1 uA
900 kΩ
Input Capacitance
CIN Inputs
4 pF
MDS 650-44 C
5
Revision 080305
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet ICS650-44.PDF ] |
Número de pieza | Descripción | Fabricantes |
ICS650-40 | ETHERNET SWITCH CLOCK SOURCE | Integrated Circuit Systems |
ICS650-40A | ETHERNET SWITCH CLOCK SOURCE | Integrated Circuit Systems |
ICS650-41 | Spread Spectrum Clock Synthesizer | Integrated Circuit Systems |
ICS650-44 | Spread Spectrum Clock 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 |