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PDF PI6C4931504-04 Data sheet ( Hoja de datos )
| Número de pieza | PI6C4931504-04 | |
| Descripción | High Performance HCSL Fanout Buffer | |
| Fabricantes | Pericom Semiconductor | |
| Logotipo |  |
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Features
ÎÎ4 HCSL outputs
ÎÎUp to 250MHz output frequency
ÎÎUltra low additive phase jitter: < 0.1 ps (typ)
ÎÎTwo selectable inputs
ÎÎLow delay from input to output (Tpd typ. 1.5ns)
ÎÎ2.5V / 3.3V power supply
ÎÎIndustrial temperature support
ÎÎTSSOP-20 package
PI6C4931504-04
High Performance HCSL Fanout Buffer
Description
The PI6C4931504-04 is a high performance fanout buffer device
which supports up to 250MHz frequency. This device is ideal
for systems that need to distribute low jitter clock signals to
multiple destinations.
Applications
ÎÎNetworking systems including switches and Routers
ÎÎHigh frequency backplane based computing and telecom
platforms
Block Diagram
CLK_EN Pullup
CLK0 Pulldown
nCLK0 Pullup/ Pulldown
0
CLK1 Pulldown
1
CLK_SEL Pulldown
Iref
D
Q
LE
Pin Configuration (20-Pin TSSOP)
GND 1
20 Q0
CLK_EN 2
19 nQ0
Q0
nQ0
CLK_SEL 3
18 VDD
CLK0 4
17 Q1
Q1
nCLK0 5
16 nQ1
nQ1
CLK1 6
15 Q2
Q2
nQ2
NC 7
14 nQ2
NC 8
13 VDD
Q3
nQ3
IREF 9
12 Q3
VDD 10
11 nQ3
12-0251
1
PI6C4931504-04
Rev A
08/14/2012
1 page  
PI6C4931504-04
High Performance HCSL Fanout Buffer
AC Electrical Specifications – Differential Outputs
Parameter
fOUT
Tr
Tf
TODC
Tj
VMAX
VMIN
VCROSS
DVCROSS
TSK
TPD
TP2P Skew
Description
Output frequency
Output rise time
Output fall time
Output duty cycle
Buffer additive jitter RMS
Absolute Maximum Output Volt-
age
Absolute Minimum Output Volt-
age
Absolute crossing voltage
Total variation of crossing voltage
Output Skew
Propagation Delay
Part to Part Skew1
Conditions
From 20% to 80%
From 80% to 20%
HCSL
HCSL
Min. Typ.
175
175
48
0.1
Max.
250
700
700
52
1150
Units
MHz
ps
ps
%
ps
mV
-300
250 550
140
40 100
1500
600
mV
mV
mV
ps
ps
ps
Notes:
1. This parameter is guaranteed by design
Configuration test load board termination for HCSL Outputs
PI6C4931504-04
Rs
33Ω
5%
Rs
33Ω
5%
475Ω
1%
Rp
49.9Ω
1%
TLA
Rp
49.9Ω
1%
TLB
2pF
5%
Clock
Clock#
2pF
5%
12-0251
5
PI6C4931504-04
Rev A
08/14/2012
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet PI6C4931504-04.PDF ] | |
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