PI6C487016FBE Pericom Semiconductor, PI6C487016FBE Datasheet - Page 7

• Manufacturer Part Number: PI6C487016FBE
• Description: Clock Drivers & Distribution 1to16 LVCMOS/LVTTL Clock Drive
• Manufacturer: Pericom Semiconductor
• Type: Clock Dividerr

Specifications of PI6C487016FBE

• Number Of Clock Inputs: 2
• Output Logic Level: LVCMOS/LVTTL
• Output Frequency: 250MHz
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: LQFP
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 48
• Max Output Freq: 250 MHz
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Maximum Operating Temperature: + 85 C
• Package / Case: LQFP-48
• Lead Free Status / RoHS Status: Compliant

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 = VDD/2 is
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 adn 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
10-0008
DD
= 3.3V, V_REF should be 1.25V and R1/R2 = 0.609.
Figure 1: Single-ended Signal Driving Differential Input
Single Ended
Clock Input
0.1μ
C1
R1
1K
R2
1K
7
V
DD
CLK1
nCLK1
LVCMOS/LVTTL Clock Driver
Low Skew, 1-to-16
PS8741D
PI6C487016
01/12/10