ABE0126
Low EMI Spread Spectrum Multiplier Clock
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1
FEATURES
• Spread Spectrum clock with frequency range of
33 ~ 90MHz.
• Output frequency 1X the input frequency.
• Less than 250 ps skew between outputs.
• Less than 100 ps cycle - cycle jitter.
• ±1.0% Center Spread Modulation (+/-15%
tolerance).
• TTL/CMOS compatible outputs.
• 3.3V operation.
• Available in 8-Pin 150mil SOIC.
DESCRIPTION
The ABE0126 is a Spread Spectrum Clock Generator
designed for the purpose of reducing EMI in high-
speed digital systems. The device is designed to
operate from 33 ~ 90MHz and provides five low-skew
outputs with ±1.0% Center Spread Modulation.
PIN CONFIGURATION
BLOCK DIAGRAM
ABE0126
1
2
3
45
6
7
8
FIN
CLK2
CLK1
GND
CLK5
VDD
CLK3
CLK4
FIN = 33 ~ 90 Mhz
PLL SST
1X
FIN
CLK1
CLK2
CLK3
CLK4
CLK5
ABE0126
Low EMI Spread Spectrum Multiplier Clock
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 2
PIN DESCRIPTIONS
Name Number Type Description
FIN 1 I Input Clock Frequency. ( 3 3 ~ 90MHz )
CLK2 2 O Buffered Clock Output. 1X th e input frequency ( FIN ).
CLK1 3 O Buffered Clock Output. 1X th e input frequency ( FIN ).
GND 4 I Ground.
CLK3 5 O Buffered Clock Output. 1X th e input frequency ( FIN ).
VDD 6 P 3.3V Power Supply.
CLK4 7 O Buffered Clock Output. 1X th e input frequency ( FIN ).
CLK5 8 O Buffered Clock Output. 1X th e input frequency ( FIN ).
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS SYMBOL MIN. MAX. UNITS
Supply Voltage VDD 4.6 V
Input Voltage, dc VI -0.5 VDD+0.5 V
Output Voltage, dc VO -0.5 VDD+0.5 V
Storage Temperature TS -65 150
°C
Ambient Operating T emperature* TA -40 85 °C
Junction Temperature TJ 125
°C
Lead Temperature ( soldering, 10s) 260 °C
ESD Protection, Human Body Model 2 kV
Exposure of the d evice under conditions beyond the limits specified by Maximum Ratings for extended periods may cause pe rmanent damage to the
device and affect product reliability. These conditions represent a stress rating on ly, and functional operations of the device at these or any other
conditions above the operational limits noted in this spec ification is not im plied.
* Note: Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade only.
2. Electrical Charac teristics
PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS
Supply Voltage VDD 2.97 3.63 V
Input Low Voltage VIL 0.8 V
Input High Voltage VIH 2.0 V
Input Low Current IIL V
IN = 0V 19 50.0 µA
Input High Cur rent IIH V
IN = VDD 0.10 100.0
µA
Output Low Voltage VOL I
OL = 50 mA 0.25 0.4 V
Output High Voltage VOH I
OH = 50 mA 2.4 2.9 V
Supply Current IDD Unloaded outputs at 75MHz,
SEL inputs at V DD or GND 30.0 40.0 mA
ABE0126
Low EMI Spread Spectrum Multiplier Clock
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 3
3. Timing Cha racteristics
PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS
Input Frequency FIN 33 90 MHz
Rise Time Tr Measured at 0.8V ~ 2.0V @ 3.3V 0.8 0.95 1.1 ns
Fall Time Tf Measured at 2 .0V ~ 0.8V @ 3.3V 0.78 0.85 0.9 ns
Output Duty Cycle DT 45 50 55 %
Input to Outpu t Delay 2 4 ns
Cycle to Cycle Jitter Tcyc-cyc Over output frequency r ange @ 3.3V 100 ps
ABE0126
Low EMI Spread Spectrum Multiplier Clock
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 4
PACKAGE INFORMATION
ORDERING INFORMATION
Abracon Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information
furnished by Abra con is believed to be accurate and reliable. However, Abracon makes no guaran tee or warranty concern ing the accuracy of s aid
information and shall n ot be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product.
LIFE SUPPORT POLICY : Abracon’s products are n ot authorized for use as critic al components in life support devices or sy stems without the exp ress
written approval of the President of Abracon Corporation .
For part ordering, please contact our Sales Department:
30332 Esperanza., R ancho Santa Margarit a, Ca 92688
Ph: 949-546-8000 Fax: 949- 546-8001
PART NUMBER
The order number for this d evice is a combination of th e following:
Device number, Packag e type and Operating tempera ture range
ABE0126 S X X X
Order Number Marking Package Option
ABE0126SC-T ABE0126SC SOIC -Tape and Reel
ABE0126SC ABE0126SC SOIC –Tube
ABE0126SCL-T ABE0126SCL SOIC -Tape and Reel
ABE0126SCL ABE0126SCL SOIC –Tube
PART NUMBER
CL
A
8 PIN Narrow SOIC ( mm )
SOIC
Symbol Min. Max.
A 1.47 1.73
A1 0.10 0.25
B 0.33 0.51
C 0.19 0.25
D 4.80 4.95
E 3.80 4.00
H 5.80 6.20
L 0.38 1.27
e1.27 BSC
EH
D
A1
eB
PACKAGE TYPE
S=SOIC TEMPERATURE
C=COMMERCIAL
I = INDUSTRIAL
NONE=NORMAL PACKAGE
L=GREEN PACKAGE
NONE= TUBE
R=TAPE and REEL
