PI6C557-03BLE Pericom Semiconductor, PI6C557-03BLE Datasheet
PI6C557-03BLE
Manufacturer Part Number
PI6C557-03BLE
Description
Manufacturer
Pericom Semiconductor
Datasheet
1.PI6C557-03BLE.pdf
(9 pages)
Specifications of PI6C557-03BLE
Pack_quantity
96
Comm_code
85423990
Lead_time
56
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Features
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Block Diagram
All trademarks are property of their respective owners.
crystal or clock
PCIe® 3.0 compliant
LVDS compatible outputs
Supply voltage of 3.3V ±10%
25MHz crystal or clock input frequency
HCSL outputs, 0.8V Current mode differential pair
Jitter 35ps cycle-to-cycle (typ)
Spread of -0.5%, -0.75%, and no spread
Industrial temperature range
Spread Bypass option available
Spread and frequency selection via external pins
Packaging: (Pb-free and Green)
25 MHz
à
à
à
SS1:SS0
PCIe 3.0 Phase jitter - 0.45ps RMS (High Freq. Typ.)
16-pin TSSOP (L16)
16-pin QSOP (Q16)
Pulling
Capacitors
S1:S0
X1/CLK
X2
2
2
Control
Crystal
Driver
Logic
VDD
GND
Phase
2
Lock
Loop
2
OE
R
R
11-0062
PCIe® 3.0 Clock Generator with 2 HCSL Outputs
CLK0
CLK0
CLK1
CLK1
1
Description
The PI6C557-03B 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 PI6C557-03B provides two differential (HCSL) or LVDS
spread spectrum outputs. The PI6C557-03B is configured to se-
lect spread and clock selection. Using Pericom's patented Phase-
Locked Loop (PLL) techniques, the device takes a 25MHz crystal
input and produces two pairs of differential outputs (HCSL) at
25MHz, 100MHz, 125MHz and 200MHz clock frequencies. It
also provides spread selection of -0.5%, -0.75%, and no spread.
Pin Configuration (16-Pin TSSOP)
X1/CLK
GNDX
SS0
SS1
OE
X2
S0
S1
1
2
3
4
5
6
7
8
www.pericom.com
PI6C557-03B
16
15
14
13
12
11
10
9
P-0.1
VDDX
CLK0
CLK0
GNDA
VDDA
CLK1
CLK1
IREF
04/29/11
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