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PDF ICS525-04 Data sheet ( Hoja de datos )
| Número de pieza | ICS525-04 | |
| Descripción | OSCaR-TM User Configurable PECL Clock | |
| Fabricantes | Integrated Circuit Systems | |
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ICS525-04
OSCaRTM User Configurable PECL Clock
Description
The ICS525-04 OSCaRTM is the most flexible way to
generate a high quality, high frequency differential
PECL clock output from a crystal or CMOS clock input.
The name OSCaRTM stands for Oscillator
Replacement, as it is designed to replace crystal
oscillators in almost any electronic system. Users can
easily 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
techniques, the device accepts a crystal or clock to
produce output clocks up to 156 MHz at 3.3V, keeping
them frequency locked together.
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.
For applications which require defined input to output
timing, use the ICS527-02.
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 select inputs
• Input crystal frequency of 5 - 27 MHz
• Input clock frequency of 2 - 50 MHz
• Output clock frequencies up to 156 MHz at 3.3V
• Output clock frequencies up to 200 MHz at 5V
• Very low jitter
• PECL levels set by external resistors
• Operating voltage of 3.3V or 5V
• Ideal for oscillator replacement
• Industrial temperature version available
• Advanced, low power CMOS process
Block Diagram
X1/ICLK
Crystal or
clock input X2
Crystal
Oscillator
Optional crystal capacitors
Reference
Divider
7
R6:R0
2 VDD
Phase Comparator,
Charge Pump, and
Loop Filter
VCO
Divider
560Ω
RES
VDD
VCO
Output
Divider
9 2 GND
V8:V0
3
S2:S0
VDD
82Ω
PECL
820Ω
GND
VDD
82Ω
PECL
820Ω
GND
www.DataSheet4U.com
MDS 525-04 B
1
Revision 091802
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 295-9800 ● www.icst.com
1 page  
www.DataSheet4U.com
ICS525-04
OSCaRTM User Configurable PECL Clock
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS525-04. 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
Storage Temperature
Junction Temperature
Soldering Temperature
Rating
7V
-0.5V to VDD+0.5V
-40 to +85°C
-65 to +150°C
175°C
260°C
Recommended Operation Conditions
Parameter
Ambient Operating Temperature, ICS525R-04
Ambient Operating Temperature, ICS525R-04I
Power Supply Voltage (measured in respect to GND)
Min.
0
-40
+3.0
Typ.
Max.
+70
+85
+5.5
Units
°C
°C
V
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3V ±10%, Ambient Temperature 0 to +70°C
Parameter
Symbol
Conditions
Min. Typ.
Operating Voltage
VDD
3.0
Supply Current
IDD 15 MHz in, 60MHz out,
no load
34
15MHz in, 60MHz out,
VDD = 5V
60
Input High Voltage
Input Low Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
VIH
VIL
VIH X1/ICLK only
VIL X1/ICLK only
VOH IOH = -12 mA
2
VDD/2+1
2.4
VDD/2
VDD/2
Max.
5.5
Units
V
mA
mA
0.8
VDD/2-1
V
V
V
V
V
www.DataSheet4U.com
MDS 525-04 B
5
Revision 091802
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 295-9800 ● www.icst.com
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet ICS525-04.PDF ] | |
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