ICS85214AGT IDT, Integrated Device Technology Inc, ICS85214AGT Datasheet - Page 8

• Manufacturer Part Number: ICS85214AGT
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Driverr

Specifications of ICS85214AGT

• Number Of Clock Inputs: 2
• Output Frequency: 700MHz
• Output Logic Level: HSTL
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: TSSOP
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 20
• Lead Free Status / RoHS Status: Not Compliant

Differential Clock Input Interface
The CLK /CLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL and
other differential signals. Both V
and V
examples for the HiPerClockS CLK/CLK input driven by the most
common driver types. The input interfaces suggested here are
examples only. Please consult with the vendor of the driver
Figure 3A. HiPerClockS CLK/CLK Input
Figure 3C. HiPerClockS CLK/CLK Input
Figure 3E. HiPerClockS CLK/CLK Input
IDT™ / ICS™ HSTL FANOUT BUFFER
ICS85214
LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER
CMR
2.5V
1.8V
3.3V
HCSL
LVPECL
*Optional – R3 and R4 can be 0Ω
input requirements. Figures 3A to 3F show interface
LVHSTL
IDT
HiPerClockS
LVHSTL Driver
Driven by an IDT Open Emitter
HiPerClockS LVHSTL Driver
Driven by a 3.3V LVPECL Driver
Driven by a 3.3V HCSL Driver
*R3
*R4
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
33
33
Zo = 50Ω
Zo = 50Ω
SWING
R3
125
R1
50
3.3V
R1
84
R1
50
and V
R4
125
R2
50
R2
84
OH
R2
50
must meet the V
CLK
nCLK
CLK
nCLK
CLK
nCLK
3.3V
3.3V
3.3V
HiPerClockS
Input
HiPerClockS
Input
HiPerClockS
Input
PP
8
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.
Figure 3B. HiPerClockS CLK/CLK Input
Figure 3D. HiPerClockS CLK/CLK Input
Figure 3F. HiPerClockS CLK/CLK Input
2.5V
3.3V
3.3V
SSTL
LVDS
LVPECL
Driven by a 3.3V LVPECL Driver
Driven by a 3.3V LVDS Driver
Driven by a 2.5V SSTL Driver
Zo = 60Ω
Zo = 60Ω
Zo = 50Ω
Zo = 50Ω
ICS85214AG REV. B FEBRUARY 25, 2008
Zo = 50Ω
Zo = 50Ω
R3
120
2.5V
R1
120
R1
50
R2
50
R4
120
R2
120
R2
50
R1
100
CLK
nCLK
CLK
nCLK
CLK
nCLK
3.3V
3.3V
HiPerClockS
3.3V
HiPerClockS
Input
Receiver