ICS85311AMLF IDT, Integrated Device Technology Inc, ICS85311AMLF Datasheet - Page 7

• Manufacturer Part Number: ICS85311AMLF
• Description: IC FANOUT BUFF LVPECL/ECL 8-SOIC
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution)r

Specifications of ICS85311AMLF

• Number Of Circuits: 1
• Ratio - Input:output: 1:2
• Differential - Input:output: Yes/Yes
• Input: HCSL, LVDS, LVHSTL, LVPECL, SSTL
• Output: ECL, LVPECL
• Frequency - Max: 1GHz
• Voltage - Supply: 2.375 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC
• Frequency-max: 1GHz
• Number Of Outputs: 4
• Operating Supply Voltage (max): -3.465/3.465V
• Operating Temp Range: 0C to 70C
• Propagation Delay Time: 1.4ns
• Operating Supply Voltage (min): -2.375/2.375V
• Mounting: Surface Mount
• Pin Count: 8
• Operating Supply Voltage (typ): -2.5/-3.3/2.5/3.3V
• Package Type: SOIC N
• Duty Cycle: 52%
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 800-1166; 800-1166-5; 800-1166; 85311AMLF

Parameter Measurement Information, continued
Output Duty Cycle/Pulse Width/Period
Application Information
Wiring the Differential Input to Accept Single Ended Levels
Figure 1 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™ LVPECL/ECL FANOUT BUFFER
ICS85311
LOW SKEW, 1-TO-2, DIFFERENTIAL-TO-LVPECL/ECLFANOUT BUFFER
nQ[0:1]
Q[0:1]
t
CC
PW
odc =
= 3.3V, V_REF should be 1.25V and
t
PERIOD
t
PERIOD
t
PW
x 100%
CC
/2 is
7
Output Rise/Fall Time
Figure 1. Single-Ended Signal Driving Differential Input
nQ[0:1]
Q[0:1]
Single Ended Clock Input
20%
80%
C1
0.1u
t
R
V_REF
ICS85311AM REV. D OCTOBER 22, 2008
R1
1K
R2
1K
V
CC
80%
CLK
nCLK
t
F
20%
V
SW I N G