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PDF ICS650-40A Data sheet ( Hoja de datos )
| Número de pieza | ICS650-40A | |
| Descripción | ETHERNET SWITCH CLOCK SOURCE | |
| Fabricantes | Integrated Circuit Systems | |
| Logotipo |  |
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ICS650-40A
ETHERNET SWITCH CLOCK SOURCE
Description
The ICS650-40A is a clock chip designed for use as a
core clock in Ethernet Switch applications. Using ICS’
patented Phase-Locked Loop (PLL) techniques, the
device takes a 25 MHz crystal input and produces
various output clock frequencies as listed in Output
Select Table.
Features
• Packaged in 16-pin TSSOP
• Operating voltage of 3.3 V
• Low power consumption
• Input frequency of 25 MHz
• Low long-term jitter
• Separate supply voltage for clock outputs (2.5 / 3.3 V
clock outputs)
• OE control capability
Block Diagram
VDD
2
VDDOA VDDOB
S1:S0
2
Control
Logic
Phase Lock Loop
X1/ICLK
25 MHz
crystal or clock X2
Clock
Buffer/
Crystal
Oscillator
Optional tuning crystal
capacitors
4
GND
OE
CLKB
CLKA
CLKA
MDS 650-40A B
1
121004
Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
1 page  
ICS650-40A
ETHERNET SWITCH CLOCK SOURCE
Thermal Characteristics
Parameter
Symbol Conditions
Thermal Resistance Junction to
Ambient
Thermal Resistance Junction to Case
θJA Still air
θJA 1 m/s air flow
θJA 3 m/s air flow
θJC
Min.
Typ.
78
70
68
37
Max.
Units
°C/W
°C/W
°C/W
°C/W
Marking Diagram
16
9
ICS 650G-40A
######
YYWW$$
18
Notes:
1. ###### is the lot code.
2. YYWW is the last two digits of the year, and the week number that the part was assembled.
MDS 650-40A B
5
Revision 121004
Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet ICS650-40A.PDF ] | |
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