ICS8547AY IDT, Integrated Device Technology Inc, ICS8547AY Datasheet - Page 9

• Manufacturer Part Number: ICS8547AY
• Description: IC CLK BUFFER DIFF-LVDS 48-LQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution)r

Specifications of ICS8547AY

• Number Of Circuits: 6
• Ratio - Input:output: 1:2
• Differential - Input:output: Yes/Yes
• Input: HCSL, LVDS, LVHSTL, LVPECL, SSTL
• Output: LVDS
• Frequency - Max: 700MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Frequency-max: 700MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 800-1187; 8547AY

D
The CLK /nCLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL
and other differential signals. Both V
V
examples for the HiPerClockS CLK/nCLK input driven by the most
common driver types. The input interfaces suggested here are
ICS8547AY
F
F
PP
IGURE
IGURE
IFFERENTIAL
and V
3.3V
2. H
4. H
CMR
1.8V
LVPECL
3.3V LVPECL D
ICS H
input requirements. Figures 2 to 5 show interface
I
LVHSTL
ICS
HiPerClockS
LVHSTL Driver
I
P
P
ER
ER
C
C
C
I
LOCK
P
Zo = 50 Ohm
Zo = 50 Ohm
LOCK
LOCK
Zo = 50 Ohm
Zo = 50 Ohm
ER
C
S CLK/
S CLK/
LOCK
I
NPUT
RIVER
S LVHSTL D
R1
50
3.3V
R3
125
I
N
N
R1
84
NTERFACE
CLK I
CLK I
SWING
R2
50
R4
125
R2
84
and V
NPUT
NPUT
CLK
nCLK
CLK
nCLK
3.3V
www.icst.com/products/hiperclocks.html
RIVER
3.3V
OH
HiPerClockS
Input
D
D
must meet the
HiPerClockS
Input
RIVEN BY
RIVEN BY
9
examples only. Please consult with the vendor of the driver com-
ponent to confirm the driver termination requirements. For ex-
ample in Figure 2, 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
IGURE
IGURE
3.3V
D
R5,R6 locate near the driver pin.
3.3V
IFFERENTIAL
LVPECL
3. H
5. H
LVPECL
3.3V LVPECL D
3.3V LVPECL D
R5
100 - 200
I
I
P
P
ER
ER
Zo = 50 Ohm
Zo = 50 Ohm
C
C
R6
100 - 200
LOCK
LOCK
Zo = 50 Ohm
Zo = 50 Ohm
-
TO
S CLK/
S CLK/
H
-LVDS C
EX
RIVER
RIVER WITH
R1
50
R3
50
C1
C2
, L
N
N
CLK I
CLK I
R2
50
OW
3.3V
R3
125
R1
84
CLK
nCLK
AC C
NPUT
NPUT
LOCK
3.3V
S
R4
125
REV. A FEBRUARY 4, 2003
ICS8547
R2
84
KEW
HiPerClockS
Input
D
D
OUPLE
RIVEN BY
RIVEN BY
B
CLK
nCLK
, 1-
3.3V
UFFERS
HiPerClockS
Input
TO
-2