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PDF PI6C557-01B Data sheet ( Hoja de datos )
| Número de pieza | PI6C557-01B | |
| Descripción | PCIe 3.0 Clock Generator | |
| Fabricantes | Pericom Semiconductor | |
| Logotipo |  |
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PI6C557-01B
PCIe 3.0 Clock Generator with 1 HCSL Outputs
Features
ÎÎPCIe® 3.0 compliant
àà Phase jitter - 0.45ps RMS (High Freq. Typ.)
ÎÎLVDS compatible output
ÎÎSupply voltage of 3.3V ±10%
ÎÎ25MHz crystal or clock input frequency
ÎÎHCSL outputs, 0.8V Current mode differential pair
ÎÎJitter 35ps cycle-to-cycle (typ)
ÎÎSpread of -0.5% and no spread
ÎÎIndustrial temperature range
ÎÎSpread Bypass option available
ÎÎSpread selection via external pins
ÎÎPackaging: (Pb-free and Green)
àà 16-pin TQFN
Description
The PI6C557-01B is a spread spectrum clock generator compli-
ant to PCI Express® 3.0 and Ethernet requirements. The device is
used for PC or embedded systems to substantially reduce Electro-
magnetic Interference (EMI).
The PI6C557-01B provides one differential (HCSL) or LVDS
spread spectrum output. Using Pericom's patented Phase-Locked
Loop (PLL) techniques, the device takes a 25MHz crystal input
and produces one pair of differential outputs (HCSL) at 100MHz.
It also provides spread selection of -0.5% and no spread.
Block Diagram
Pin Configuration (16-Pin TQFN)
VDD
SS1
X1/CLK
25 MHz
crystal or clock X2
Pulling
Capacitors
Control
Logic
Crystal
Driver
Phase
Lock
Loop
GND
CLK
CLK
RR (IREF)
GND
X1
X2
NC
1
5
13 CLK
CLK
GND
9 VDDA
All trademarks are property of their respective owners.
14-0045
1
PI6C557-01B
RevB 04/07/2014
1 page  
Application Information
LVDS Recommendations for Differential Routing
L1 length, route as non-coupled 50Ω trace.
L2 length, route as non-coupled 50Ω trace.
RP
RQ
RT
L3 length, route as 100Ω differential trace.
L3 length, route as 100Ω differential trace.
PI6C557-01B
PCIe 3.0 Clock Generator with 1 HCSL Output
Dimension or Value
0.5 max
0.2 max
100
100
150
Unit
inch
inch
Ω
Ω
Ω
LVDS Device Routing
PI6C557-01B
Clock
Output
L1
RQ
L1’
RT
RT
L2’ L2
L3
L3’
RP
LVDS
Device
Load
All trademarks are property of their respective owners.
14-0045
5
PI6C557-01B
RevB 04/07/2014
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet PI6C557-01B.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| PI6C557-01B | PCIe 3.0 Clock Generator | Pericom Semiconductor |
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