ICS650GI-47LF View Datasheet(PDF) - Integrated Circuit Systems
Part Name
Description
MFG CO.
'ICS650GI-47LF' PDF : 10 Pages View PDF
P R E L I M I N A RY I N F O R M AT I O N
ICS650-47
Spread Spectrum Clock Synthesizer
Description
The ICS650-47 is a spread spectrum clock synthesizer
intended for video projector applications. It generates
an EMI optimized 50 MHz clock signal through the use
of Spread Spectrum techniques from a 25 MHz crystal
or clock input. For the 50 MHz output, 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)
• Guarantees +85°C operational condition
• 25 MHz crystal or reference clock input
• Zero (0) ppm frequency error on all output clocks
• Advanced, low-power CMOS process
• Industrial temperature range (0 to +85°C)
Block Diagram
25 MHz crystal
or clock input
X1/CLKIN
X2
External capacitors are
required with a crystal
input.
FS3:0
SS_EN
Crystal
OSC
VDD
3
VDDO
PLL with
Spread
50M
Spectrum
Control
Logic
2
GND
PDTS
MDS 650-47 B
1
Revision 082305
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
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