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IDT5V926PGI fiches techniques PDF

Integrated Device - SINGLE OUTPUT CLOCK GENERATOR

Numéro de référence IDT5V926PGI
Description SINGLE OUTPUT CLOCK GENERATOR
Fabricant Integrated Device 
Logo Integrated Device 





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IDT5V926PGI fiche technique
IDT5V926
SINGLE OUTPUT CLOCK GENERATOR
SINGLE OUTPUT
CLOCK GENERATOR
INDUSTRIALTEMPERATURERANGE
IDT5V926
FEATURES:
• 3V to 3.6V operating voltage
• 48MHz to 160MHz output frequency range
• Input from fundamental crystal oscillator or external source
• Internal PLL feedback (loading feedback output relative to
other outputs, adjusts propagation delay between REF
inputs and outputs)
• Select inputs (S[1:0]) for FB divide selection (multiply ratio of
2, 3, 4, 4.25, 5, 6, 6.25, and 8)
• Low jitter
• PLL bypass for testing and power-down control (S1 = H, S0 =
H, powers part down <500µA)
• Available in TSSOP package
DESCRIPTION:
The IDT5V926 is a low-cost, low skew, low jitter, and high-performance
clock synthesizer with a reference clock from lower frequency crystal or clock
input. It has been specially designed to interface with Gigabit Ethernet and
Fast Ethernet applications by providing a 125MHz clock from 25MHz input.
It can be programmed to provide output frequencies ranging from 48MHz
to 160MHz, with input frequencies ranging from 6MHz to 80MHz.
The IDT5V926 includes an internal RC filter that provides excellent jitter
characteristics and eliminates the need for external components. When
using the optional crystal input, the chip accepts a 10 - 40MHz fundamental
mode crystal with a maximum equivalent series resistance of 50.
APPLICATIONS:
• Gigabit ethernet
• Router
• Network switches
• SAN
• Instrumentation
• Fibre channel
FUNCTIONAL BLOCK DIAGRAM
VCO DIVIDE
1/N
OE
X1/REF
X2
PHASE
DETECTOR
CHARGE
PUMP
CRYSTAL
OSCILLATOR
LOOP
FILTER
VCO
0
1
SELECT MODE
QOUT
QREF
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2003 Integrated Device Technology, Inc.
S1 S0
1
REFE
APRIL 2003
DSC 5405/4

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