ICS8305 Integrated Circuit System, ICS8305 Datasheet - Page 10

• Manufacturer Part Number: ICS8305
• Manufacturer: Integrated Circuit System

F
8305AG
F
D
The CLK /nCLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL
and other differential signals. Both V
V
face examples for the HiPerClockS CLK/nCLK input driven by
the most common driver types. The input interfaces suggested
F
IGURE
PP
IGURE
IGURE
IFFERENTIAL
3.3V
and V
R5,R6 locate near the driver pin.
3.3V
LVPECL
3C. H
3A. H
3E. H
1.8V
CMR
LVPECL
R5
100 - 200
input requirements. Figures 3A to 3E show inter-
LVHSTL
ICS
HiPerClockS
LVHSTL Driver
3.3V LVPECL D
ICS H
3.3V LVPECL D
I
I
I
P
P
P
C
ER
ER
ER
Zo = 50 Ohm
Zo = 50 Ohm
LOCK
R6
100 - 200
Zo = 50 Ohm
Zo = 50 Ohm
C
C
C
I
P
LOCK
Zo = 50 Ohm
Zo = 50 Ohm
LOCK
LOCK
ER
C
I
S CLK/
NPUT
S CLK/
LOCK
S CLK/
RIVER
S LVHSTL D
R1
50
RIVER WITH
3.3V
R3
125
C1
C2
I
R1
84
NTERFACE
SWING
N
N
N
CLK I
CLK I
CLK I
3.3V
R3
125
R2
50
R4
125
R1
84
R2
84
and V
CLK
nCLK
R4
125
R2
84
NPUT
AC C
NPUT
CLK
nCLK
NPUT
3.3V
www.icst.com/products/hiperclocks.html
OH
3.3V
HiPerClockS
Input
RIVER
must meet the
HiPerClockS
Input
D
D
D
OUPLE
CLK
nCLK
RIVEN BY
RIVEN BY
RIVEN BY
3.3V
HiPerClockS
Input
LVCMOS-
L
OW
10
here are examples only. Please consult with the vendor of the
driver component to confirm the driver termination requirements.
For example in Figure 3A, the input termination applies for ICS
HiPerClockS LVHSTL drivers. If you are using an LVHSTL driver
from another vendor, use their termination recommendation.
F
F
S
IGURE
IGURE
KEW
3.3V
3.3V
TO
3D. H
3B. H
LVDS_Driv er
, 1-
LVPECL
-LVCMOS/LVTTL F
3.3V LVPECL D
3.3V LVDS D
TO
I
I
P
P
Zo = 50 Ohm
Zo = 50 Ohm
ER
ER
-4, M
C
C
LOCK
LOCK
Zo = 50 Ohm
Zo = 50 Ohm
ULTIPLEXED
S CLK/
S CLK/
RIVER
R1
50
RIVER
R3
50
N
N
R2
50
CLK I
CLK I
R1
100
CLK
nCLK
ANOUT
3.3V
D
ICS8305
NPUT
NPUT
HiPerClockS
IFFERENTIAL
REV. A JUNE 27, 2003
Input
CLK
nCLK
D
D
3.3V
B
RIVEN BY
RIVEN BY
Receiv er
UFFER
/