SL15100
Programmable Spread Spectrum Clock Generator (SSCG)
Key Features
Low power dissipation
- 7.7mA-typ at 66MHz and VDD=3.3V
- 6.8mA-typ at 66MHz and VDD=2.5V
Wide 2.5V to 3.3V +/-10% power supply range
Programmable outputs from 3 to 200MHz
Low Jitter
- 110ps at 66MHz
Programmable Center or Down Spread Modulation
from 0.25 to 5.0%
8 to 48 MHz external crystal range
8 to 166 MHz external clock range
Integrated internal voltage regulator
Programmable PD#/OE/SSON#/FS functions
Programmable CL at XIN and XOUT pins
Programmable output rise and fall times
Programmable modulation frequency from 30 to
120 kHz
Description
The SL15100 a programmable low power Spread
Spectrum Clock Generator (SSCG) used for reducing
Electromagnetic Interference (EMI). The product is
designed using SpectraLinear proprietary
EProClock™
programmable phase-locked loop (PLL) and Spread
Spectrum Clock (SSC) technology to synthesize and
modulate the input clock. The modulated clock can
significantly reduce the measured EMI levels, and leading
to the compliance with regulatory agency requirements.
The output clock frequency, Spread %, output rise and fall
times, crystal load, modulation frequency and
PD#/OE/SSON#/FS functions can be programmed to meet
the needs of wide range of applications. The SL15100
operates from 2.5V to 3.3V power supply voltage range.
The product is offered in 8-pin TSSOP package with
commercial and industrial grades.
Refer to SL15101 for up to four (4) programmable clock
outputs and SL15L100/101 Programmable SSCG products
for 1.8V power supply operation.
Applications
Printers, MFPs
Digital Copiers
NBPCs and LCD Monitors
Routers, Servers and Switchers
HDTV and DVD-R/W
Benefits
Peak EMI reduction of 8 to 16 dB
Fast time-to-market
Cost Reduction
Reduction of PCB layers
Eleminates the need for higher order crystals (Xtals)
and crystal oscillators (XOs)
Block Diagram
Rev 1.8, August 10, 2007
Page 1 of 16
2200 Laurelwood Road, Santa Clara, CA 95054 Tel: (408) 855-0555 Fax: (408) 855-0550 www.SpectraLinear.com
SPECTRALINEAR [ SPECTRALINEAR INC ]
