PI6C48533-01LEX Pericom Semiconductor, PI6C48533-01LEX Datasheet - Page 6

• Manufacturer Part Number: PI6C48533-01LEX
• Description: Clock Drivers & Distribution 2.5V 1:16 LVPECL Fanout Buffer
• Manufacturer: Pericom Semiconductor

Specifications of PI6C48533-01LEX

• Max Output Freq: 800 MHz
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Clock Inputs: 2
• Output Logic Level: LVPECL
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 85 C
• Package / Case: TSSOP-20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Applications Information
Wiring the differenctial 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
ated 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 postion the V_REF in the center of the input voltage swing. For example, if the input clock swing is
only 2.5V and V
09-0110
CC
= 3.3V, V_REF should be 1.25V and R1/R2 = 0.609.
Figure 2: Single-ended Signal Driving Differential Input
Single Ended
Clock Input
0.1μ
C1
R1
1K
R2
1K
6
Differential/LVCMOS to LVPECL Fanout Buffer
V
CC
CLK
nCLK
3.3V Low Skew 1-to-4
PI6C48533-01
PS8737B
CC
/2 is gener-
12/15/09