器件名称: ABE0113SC
功能描述: Low EMI Spread Spectrum Multiplier Clock
文件大小: 50.48KB 共5页
简 介:ABE0113
Low EMI Spread Spectrum Multiplier Clock
FEATURES
Spread Spectrum Clock Generator with selectable multiplier ( 1x, 2x and 4x ). Output frequency ranges: 24MHz to 240MHz. Selectable Down Spread Modulation. TTL/CMOS compatible outputs. 3.3V Operating Voltage. Low short term jitter. Available in 8-Pin 150mil SOIC.
PIN CONFIGURATION
FIN S2^ S1^ S0v 1 8 VD D S3v FOUT GND
ABE0113
2 3 4
7 6 5
FIN = 24 ~ 120 Mhz
Note: v: 30k Internal Pull down ^: 30k Internal Pull up.
DESCRIPTION
The ABE0113 is a Spread Spectrum Clock Generator designed for the purpose of reducing EMI in highspeed digital systems. The selectable Down Spread modulation magnitude (see table below) permits EMI reduction without over-clocking the output. The device operates over a very wide range of input frequencies and provides 1x to 4x modulated clock outputs.
OUTPUT CLOCK (FOUT) SELECTION
S3
0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
S2
0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
S1
0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
S0
0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
FIN Range (MHz)
24 24 24 24 24 24 24 24 60 60 60 60 60 60 60 60
FOUT
X1 X1 X1 X1 X2 X2 X2 X2 X2 X2 X4 X4 X1 X1 X1 X1
Spread Spectrum Modulation Frequency Magnitude
-1.5% -2.0% -2.5% -3.0% -0.5% -1.0% -1.5% -2.0% -2.5% -3.0% -0.5% -1.0% -0.5% -1.0% -1.5% -2.0%
24 - 60 24 - 60 24 - 60 24 - 60 60 60 60 60 120 120 120 120
Fin / 1024
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1
ABE0113
Low EMI ……
