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Número de pieza | ICS525-03 | |
Descripción | PECL Input OSCaR-TM USER Configurable Clock | |
Fabricantes | Integrated Circuit Systems | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de ICS525-03 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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ICS525-03
PECL Input OSCaR™ User Configurable Clock
Description
The ICS525-03 are the most flexible way to generate a
high-quality, high-accuracy, high-frequency clock
output from a PECL input. The name OSCaR stands
for OSCillator Replacement, as they are designed to
replace crystal oscillators in almost any electronic
system. The user can configure the device to produce
nearly any output frequency from any input frequency
by grounding or floating the select pins. Neither
microcontroller, software, nor device programmer are
needed to set the frequency. Using Phase-Locked
Loop (PLL) techniques, the device accepts a PECL
clock to produce output clocks up to 250 MHz, keeping
them frequency locked together. Resistors are for
PECL outputs only.
For simple multipliers to produce common frequencies,
refer to the LOCOTM family of parts, which are smaller
and more cost effective.
This product is intended for clock generation. It has low
output jitter (variation in the output period), but input to
output skew and jitter are not defined nor guaranteed.
Features
• Packaged as 28-pin SSOP (150 mil body)
• Highly accurate frequency generation
• User determines the output frequency by setting all
internal dividers
• Eliminates need for custom oscillators
• No software needed
• Pull-ups on all select inputs
• PECL input clock frequency of 0.5 to 250 MHz
• Output clock frequencies up to 250 MHz
• Very low jitter
• Operating voltage of 3.0 V or 5.5 V
• 25 mA drive capability at TTL levels
• Ideal for oscillator replacement
• Industrial temperature
• Available in Pb (lead) free package
• Advanced, low-power CMOS process
Block Diagram
2 VDD
PECLIN
PECLIN
Reference
Divider
Phase Comparator,
Charge Pump, and
Loop Filter
VCO
Divider
7
R6:R0
2
GND
9
V8:V0
VCO
Output
Divider
3
S2:S0
RES
VDD
62 Ohm
CLK1
270 Ohm
VDD
62 Ohm
CLK2
270 Ohm
www.DataSheet4U.com
MDS 525-03 H
1
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
1 page www.DataSheet4U.com
ICS525-03
PECL Input OSCaR™ User Configurable Clock
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS525-03. These ratings,
which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of
the device at these or any other conditions above those indicated in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can
affect product reliability. Electrical parameters are guaranteed only over the recommended operating
temperature range.
Item
Supply Voltage, VDD
All Inputs and Outputs
Ambient Operating Temperature, Industrial
Storage Temperature
Junction Temperature
Soldering Temperature
Rating
7V
-0.5 V to VDD+0.5 V
-40 to +85°C
-65°C to 150°C
125°C
260°C (max. of 10 seconds)
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V
Parameter
Symbol
Conditions
Operating Voltage
VDD
Operating Supply Current
IDD 60 MHz out, no load
Operating Supply Current,
LVPECL mode
IDD With termination
resistors
Input High Voltage
VIH
Input Low Voltage
VIL
Peak-to-peak Input Voltage
PECLIN, PECLIN
Common Mode Range
PECLIN, PECLIN
Output High Voltage
VOH IOH = -25 mA, CMOS
out
Output Low Voltage
VOL IOL = 25 mA, CMOS
out
Short Circuit Current
CMOS out
Input Capacitance
On-chip Pull-up Resistor
CIN V, R, S select pins
RPU V, R, S select pins
Min.
3.0
2
0.3
VDD-1.4
2.4
Typ.
15
35
±70
4
270
Max.
5.5
Units
V
mA
mA
0.8
1
VDD-0.6
V
V
V
V
0.4 V
mA
pF
kΩ
www.DataSheet4U.com
MDS 525-03 H
5
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet ICS525-03.PDF ] |
Número de pieza | Descripción | Fabricantes |
ICS525-01 | (ICS525-01/02) User Configurable Clock | Integrated Circuit Systems |
ICS525-02 | (ICS525-01/02) User Configurable Clock | Integrated Circuit Systems |
ICS525-03 | PECL Input OSCaR-TM USER Configurable Clock | Integrated Circuit Systems |
ICS525-04 | OSCaR-TM User Configurable PECL Clock | Integrated Circuit Systems |
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