874005AG-04LF Integrated Device Technology (Idt), 874005AG-04LF Datasheet - Page 8

• Manufacturer Part Number: 874005AG-04LF
• Description: PCI Express Jitter Attenuator 24-Pin TSSOP Tube
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 874005AG-04LF

• Package: 24TSSOP
• Operating Temperature: 0 to 70 °C

IDT
F
F
D
The CLK /nCLK accepts LVDS, LVPECL and LVHSTL and other
differential signals. Both signals must meet the V
requirements. Figures 3A to 3F show interface examples for the
HiPerClockS CLK/nCLK input driven by the most common driver
types. The input interfaces suggested here are examples only.
F
IGURE
IGURE
IGURE
ICS874005-04
PCI EXPRESS™ JITTER ATTENUATOR
IFFERENTIAL
™
2.5V
/ ICS
HCSL
3.3V
3C. H
3A. H
3E. H
*Optional – R3 and R4 can be 0
™
1.8V
LVPECL
PCI EXPRESS™ JITTER ATTENUATOR
LVHSTL
ICS
HiPerClockS
LVHSTL Driver
D
D
H
D
*R3
*R4
I
RIVEN BY A
I
RIVEN BY AN
I
P
I
RIVEN BY A
P
P
P
C
ER
ER
ER
ER
Zo = 50 Ohm
Zo = 50 Ohm
LOCK
Zo = 50 Ohm
Zo = 50 Ohm
C
33
33
C
C
C
LOCK
LOCK
LOCK
LOCK
I
NPUT
3.3V LVPECL D
Zo = 50
Zo = 50
S CLK/nCLK I
3.3V HCSL D
S CLK/nCLK I
S LVHSTL D
S CLK/nCLK I
IDT O
R1
50
3.3V
R3
125
I
R1
84
NTERFACE
R1
50
PEN
R2
50
R4
125
R2
84
E
MITTER
RIVER
CLK
nCLK
R2
50
RIVER
NPUT
NPUT
CLK
nCLK
NPUT
3.3V
RIVER
3.3V
CLK
nCLK
HiPerClockS
Input
HiPerClockS
Input
3.3V
PP
HiPerClockS
Input
and V
CMR
input
8
F
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 IDT HiPerClockS open emitter
LVHSTL drivers. If you are using an LVHSTL driver from another
vendor, use their termination recommendation.
F
F
IGURE
IGURE
IGURE
2.5V
3.3V
3.3V
SSTL
3D. H
3B. H
LVDS_Driv er
3F. H
LVPECL
D
D
D
I
RIVEN BY A
I
RIVEN BY A
I
RIVEN BY A
P
P
P
Zo = 50 Ohm
Zo = 50 Ohm
ER
ER
ER
Zo = 60
Zo = 60
C
C
C
LOCK
LOCK
LOCK
Zo = 50 Ohm
Zo = 50 Ohm
3.3V LVDS D
3.3V LVPECL D
S CLK/nCLK I
2.5V SSTL D
ICS874005AG-04 REV. A JULY 29, 2008
S CLK/nCLK I
S CLK/nCLK I
R1
50
R3
120
R3
50
2.5V
R1
120
R2
50
R1
100
R4
120
R2
120
CLK
nCLK
3.3V
RIVER
RIVER
NPUT
NPUT
NPUT
HiPerClockS
RIVER
Input
CLK
nCLK
CLK
nCLK
3.3V
3.3V
HiPerClockS
Receiv er