ICS853014BGT IDT, Integrated Device Technology Inc, ICS853014BGT Datasheet - Page 9

• Manufacturer Part Number: ICS853014BGT
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Driverr

Specifications of ICS853014BGT

• Number Of Clock Inputs: 2
• Mode Of Operation: Differential
• Output Frequency: >2000MHz
• Output Logic Level: ECL/LVPECL
• Operating Supply Voltage (min): -2.375/2.375V
• Operating Supply Voltage (typ): -2.5/-3.3/3.3V
• Operating Supply Voltage (max): -3.8/3.8V
• Package Type: TSSOP
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Signal Type: CML/LVDS/LVPECL/SSTL
• Mounting: Surface Mount
• Pin Count: 20
• Lead Free Status / RoHS Status: Not Compliant

Parameter Measurement Information, continued
Setup and Hold Time
Application Information
Wiring the Differential Input to Accept Single Ended Levels
Figure 2 shows how the differential input can be wired to accept
single ended levels. The reference voltage V_REF = V
generated by the bias resistors R1, R2 and C1. This bias circuit
should be located as close as possible to the input pin. The ratio of
R1 and R2 might need to be adjusted to position the V_REF in the
center of the input voltage swing. For example, if the input clock
swing is only 2.5V and V
R2/R1 = 0.609.
IDT™ / ICS™ 2.5V, 3.3V LVPECL/ECL FANOUT BUFFER
ICS853014
LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-2.5V, 3.3V LVPECL/ECL FANOUT BUFFER
nPCLKx
PCLKx
nEN
t
SET-UP
CC
t
HOLD
= 3.3V, V_REF should be 1.25V and
CC
/2 is
9
Figure 2. Single-Ended Signal Driving Differential Input
Single Ended Clock Input
C1
0.1u
ICS853014BG REV. D FEBRUARY 25, 2009
V_REF
R1
1K
R2
1K
V
CC
PCLKx
nPCLKx