ICS87008AGIT IDT, Integrated Device Technology Inc, ICS87008AGIT Datasheet - Page 11

• Manufacturer Part Number: ICS87008AGIT
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Dividerr

Specifications of ICS87008AGIT

• Number Of Clock Inputs: 2
• Output Frequency: 250MHz
• Output Logic Level: LVCMOS/LVTTL
• Operating Supply Voltage (min): 2.375V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: TSSOP
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 24
• Lead Free Status / RoHS Status: Not Compliant

F
87008AGI
F
D
The CLK /nCLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL
and other differential signals. Both V
the V
interface examples for the CLK/nCLK input driven by the most
common driver types. The input interfaces suggested here are
F
IGURE
IGURE
IGURE
IFFERENTIAL
3.3V
R5,R6 locate near the driver pin.
PP
3.3V
2C. CLK/
LVPECL
2A. CLK/
2E. CLK/
and V
1.8V
LVPECL
R5
100 - 200
LVHSTL
ICS
HiPerClockS
LVHSTL Driver
3.3V LVPECL D
LVHSTL D
CMR
3.3V LVPECL D
C
input requirements. Figures 2A to 2E show
Zo = 50 Ohm
Zo = 50 Ohm
LOCK
N
R6
100 - 200
N
N
Zo = 50 Ohm
Zo = 50 Ohm
CLK I
CLK I
CLK I
Zo = 50 Ohm
Zo = 50 Ohm
RIVER
I
NPUT
NPUT
NPUT
NPUT
D
D
RIVER
R1
50
D
3.3V
R3
125
RIVER WITH
C1
C2
I
RIVEN BY
R1
84
RIVEN BY
RIVEN BY
NTERFACE
SWING
R2
50
3.3V
R3
125
R4
125
R1
84
R2
84
CLK
nCLK
and V
R4
125
R2
84
AC C
CLK
nCLK
3.3V
3.3V
HiPerClockS
Input
D
OH
HiPerClockS
Input
OUPLE
CLK
nCLK
IFFERENTIAL
must meet
3.3V
HiPerClockS
Input
www.idt.com
11
F
examples only. Please consult with the vendor of the driver
component to confirm the driver termination requirements. For
example in Figure 2A, the input termination applies for LVHSTL
drivers. If you are using an LVHSTL driver from another ven-
dor, use their termination recommendation.
F
IGURE
IGURE
-
TO
3.3V
3.3V
-LVCMOS/LVTTL C
2D. CLK/
2B. CLK/
LVDS_Driv er
LVPECL
3.3V LVPECL D
3.3V LVDS D
Zo = 50 Ohm
Zo = 50 Ohm
N
N
CLK I
CLK I
Zo = 50 Ohm
Zo = 50 Ohm
NPUT
NPUT
RIVER
R1
50
D
D
RIVER
R3
50
RIVEN BY
RIVEN BY
L
R2
50
OW
R1
100
LOCK
ICS87008I
CLK
nCLK
3.3V
S
HiPerClockS
KEW
G
Input
REV. B JULY 31, 2010
CLK
nCLK
ENERATOR
3.3V
, 1-
Receiv er
TO
-8