ICS83940-01 Integrated Circuit System, ICS83940-01 Datasheet - Page 10

• Manufacturer Part Number: ICS83940-01
• Manufacturer: Integrated Circuit System

PCLK/nPCLK C
The PCLK /nPCLK accepts LVPECL, CML, SSTL and other
differential signals. Both V
and V
face examples for the HiPerClockS PCLK/nPCLK input driven
by the most common driver types. The input interfaces sug-
F
83940DY-01
F
F
IGURE
IGURE
IGURE
3.3V
CMR
3.3V
2C. H
2E. H
2A. H
3.3V LVPECL
3.3V
input requirements. Figures 2A to 2E show inter-
LVPECL
CML
R5
100 - 200
BY A
BY A
BY A
I
I
I
P
P
P
ER
ER
ER
Zo = 50 Ohm
Zo = 50 Ohm
3.3V LVPECL D
3.3V LVPECL D
CML D
R6
100 - 200
C
C
C
Zo = 50 Ohm
Zo = 50 Ohm
LOCK
Zo = 50 Ohm
Zo = 50 Ohm
LOCK
LOCK
LOCK
S PCLK/
S PCLK/
S PCLK/
RIVER
SWING
I
NPUT
C1
C2
3.3V
R3
125
3.3V
R1
50
and V
R1
84
I
3.3V
R3
84
NTERFACE
R2
50
N
N
RIVER WITH
N
RIVER
R1
125
R4
125
PCLK I
PCLK I
PCLK I
R2
84
OH
PCLK
nPCLK
R4
84
R2
125
must meet the V
3.3V
CLK
nCLK
www.icst.com/products/hiperclocks.html
3.3V
HiPerClockS
PCLK/nPCLK
NPUT
NPUT
NPUT
PCLK
nPCLK
HiPerClockS
Input
AC C
3.3V
D
D
D
HiPerClockS
PCLK/nPCLK
RIVEN
RIVEN
RIVEN
OUPLE
LVPECL-
PP
10
gested here are examples only. If the driver is from another
vendor, use their termination recommendation. Please con-
sult with the vendor of the driver component to confirm the
driver termination requirements.
F
F
IGURE
IGURE
TO
3.3V
2D. H
LVDS_Driv er
2B. H
-LVCMOS / LVTTL F
2.5V
SSTL
BY A
BY AN
I
I
P
P
ER
ER
3.3V LVDS D
C
Zo = 60 Ohm
Zo = 60 Ohm
C
SSTL
LOCK
LOCK
Zo = 50 Ohm
Zo = 50 Ohm
S PCLK/
S PCLK/
IN
D
2.5V
R3
120
RIVER
R1
120
L
ICS83940-01
RIVER
OW
R4
120
R2
120
N
N
R1
100
PCLK I
PCLK I
S
ANOUT
PCLK
nPCLK
KEW
3.3V
REV. A APRIL 11, 2003
NPUT
NPUT
HiPerClockS
PCLK/nPCLK
CLK
nCLK
, 1-
3.3V
B
Receiv er
D
D
TO
UFFER
RIVEN
RIVEN
-18