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PDF ICS7152A Data sheet ( Hoja de datos )
| Número de pieza | ICS7152A | |
| Descripción | Spread Spectrum Clock Generator | |
| Fabricantes | Integrated Circuit Systems | |
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ICS7152A
Spread Spectrum Clock Generator
Description
The ICS7152A-02 and -11 are clock generators for EMI
(Electromagnetic Interference) reduction (see below for
frequency ranges and multiplier ratios). Spectral peaks
are attenuated by modulating the system clock
frequency. Down or center spread profiles are
selectable. Down spread will not exceed the maximum
frequency of an unspread clock, and center spread
does not change the average operating frequency of
the system
ICS offers many other clocks for computers and
computer peripherals. Consult ICS when you need to
remove crystals and oscillators from your board.
Features
• Operating voltage of 3.3 V ±0.3 V
• Packaged in 8-pin SOIC
• Input frequency range of 16.6 to 134.0 MHz
• Output frequency range of 16.6 to 134.0 MHz
• Provides a spread spectrum clock output (±0.5%,
±1.5% center spread; -1.0%, -3.0% down spread)
• Low cycle-to-cycle jitter - less than 100 ps
• Advanced, low-power CMOS process
• Industrial and commercial temperature ranges
• Available in Pb (lead) free package
• Pin compatible with Fujitsu MB88152-102 and -111
Block Diagram
VDD
SEL
FREQ
XENS
XIN
XOUT
DataSheet4U.com
PLL Clock
Synthesis
and Spread
Spectrum
Circuitry
Clock Buffer/
Crystal
Ocsillator
External caps required with crystal for
accurate tuning of the clock
GND
CKOUT
Product Lineup
Product
ICS7152AM-02, ICS7152AMI-02
ICS7152AM-11, ICS7152AMI-11
Input Frequency Range
40.0 MHz to 134.0 MHz
16.6 MHz to 67.0 MHz
Modulation Type Modulation Enable Pin
Down spread
Center spread
Yes
DataShee
MDS 7152A A
1
Revision 102005
DataSheet4U.com
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
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1 page  
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ICS7152A
Spread Spectrum Clock Generator
DC Electrical Characteristics
et4U.com
Unless stated otherwise, VDD = 3.3 V ±0.3 V, Ambient Temperature -40 to +85°C
Parameter
Symbol
Conditions
Min.
Typ.
Operating Voltage
VDD
3.0 3.3
Supply Current
IDD No load, at 3.3 V,
output = 24 MHz
10
SEL, FREQ, XENS
VDD x 0.8
Input High Voltage
XIN, Input slew rate
3 V/ns, 16.6 to 100
VIH MHz
XIN, Input slew rate
3 V/ns, 100 to 134
MHz
VDD x 0.8
VDD x 0.9
SEL, FREQ, XENS
GND
Input Low Voltage
XIN, Input slew rate
3 V/ns, 16.6 to 100
VIL MHz
XIN, Input slew rate
3 V/ns, 100 to 134
MHz
GND
GND
Output High Voltage
Output Low Voltage
Input Capacitance
VOH CKOUT, IOH = -4 mA VDD - 0.5
VOL CKODaUtTa,SIOheLe=t44Um.cAom
GND
CIN XIN, SEL, XENS
CKOUT, 16.6 to 67
MHz
Load Capacitance
CL
CKOUT, 67 to 100
MHz
CKOUT, 100 to 134
MHz
Output Impedance
ZO CKOUT, 16.6 to 134
MHz
25
Max.
3.6
14
VDD + 0.3
VDD + 0.3
VDD + 0.3
VDD x 0.20
VDD x 0.20
VDD x 0.10
VDD
0.4
16
15
10
7
Units
V
mA
V
V
V
V
V
V
V
V
pF
pF
pF
pF
Ω
DataShee
MDS 7152A A
5
Revision 102005
DataSheet4U.com
Integrated
Circuit
Systems,
Inc.
●
525
Race
Street,
San
Jose,
CA
95126
●
tel
(408)
297-1201
●
www.icst.com
DataSheet4 U .com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet ICS7152A.PDF ] | |
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