PI49FCT20802/PI49FCT20803
1:5/1:7 2.5V Clock Buffer for
Networking Applications
Features Description
High Frequency >150 MHz e PTh I49FCT2080x is 2.5V, high-speed, low noise, non-inverting
clock buffer. It is designed to target networking applications that
High-speed, low-noise, non-inverting clock buffer
require low-skew, low-jitter, and high-frequency clock distribu-
PI49FCT20802 is a 1:5 buffer
tion. It provides output-to-output skew as low as 150ps, and
PI49FCT20803 is a 1:7 buffer
is an ideal clock distribution device for synchronous systems.
Low skew < 150ps
PI49FCT2080x is a clock buffer from a single input that pro-
Low duty cycle distortion < 300ps
duces five outputs on PI49FCT20802 and seven outputs on
PI49FCT20803. PI49FCT2080x is characterized for operation
Low propagation delay < 3.5ns
from 40C to 85C.
Multiple V , GND pins for noise reduction
DD
2.5V supply voltage and 3V tolerant input
Packaging (Pb-free & Green):
16-pin TSSOP (L)
16-pin QSOP (Q) - PI49FCT20802 only
Pin Configuration (PI49FCT20802) Block Diagram (PI49FCT20802)
V CLK0
BUF_IN 1 16 DD
GND 2 15 CLK4
CLK1
CLK0 3 14 CLK3
BUF_IN
V 13 GND
DD 4
CLK2
CLK1 5 12 CLK2
V
GND 6 11 DD
CLK3
NC 10 NC
7
V
8 9 GND CLK4
DD
Pin Configuration (PI49FCT20803) Block Diagram (PI49FCT20803)
CLK0
V
BUF_IN 1 16 DD
GND 2 15 CLK6
CLK1
CLK0 3 14 CLK5
BUF_IN
V 13 GND
DD 4
CLK2
CLK1 5 12 CLK4
V
GND 6 11 DD
CLK3
CLK2 10 CLK3
7
V
8 9 GND
DD CLK6
www.pericom.com P-0.1 01/24/11
11-0004 1
. . . PI49FCT20802/PI49FCT20803
1:5/1:7 2.5V Clock Buffer for
Networking Applications
Absolute Maximum Ratings (Over operating free-air temperature range)
Parameter Min. Max. Units
Storage temperature -65 150 C
-0.5 3.6 V
SSupply Voltage V
DD
(1)
Input/Output Voltages -0.5 V
V +0.5
DD
DC Output Current -60 60 mA
Power Dissipation - 500 mW
Stress beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device.
Operating Range
Parameter Min. Max. Units
2.50.2 V
V Voltage
DD
Industrial Temperature -40 85 C
Commercial Temperature 0 70 C
Capacitive Loading 10 25 pF
DC Electrical Characteristics (Over the Operating Range)
(1) (2)
Parameters Description Test Conditions Min Typ Max Units
V Input HIGH Voltage 1.7
IH
V
V Input LOW Voltage 0.7
IL
I Input Current V = 0 or V 1 mA
I
DD DD
V Clamp Diode Voltage V = Min., I = 18 mA -0.7 -1
IK IN
DD
I = 1mA 2
OH
V Output HIGH Voltage V = Min.
OH
DD
(3)
I = 8mA 1.8 V
OH
I = 1mA 0.4
OH
V Output LOW Voltage V = Min.
OL
DD
I = 8mA 0.6
OH
Notes:
1. Th is value is limited to 3.6V maximum.
2. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
3. Typical values are at V = 2.5V, +25C ambient and maximum loading.
DD
www.pericom.com P-0.1 01/24/11
11-0004 2