8501BYLF IDT, 8501BYLF Datasheet - Page 6

• Manufacturer Part Number: 8501BYLF
• Description: Clock Drivers & Distribution
• Manufacturer: IDT

Specifications of 8501BYLF

• Product Category: Clock Drivers & Distribution
• Rohs: yes
• Part # Aliases: ICS8501BYLF

W
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
8501BY
IRING THE
D
IFFERENTIAL
I
F
NPUT TO
IGURE
Single Ended Clock Input
1. S
A
A
PPLICATION
CCEPT
INGLE
E
C1
0.1u
S
NDED
V_REF
INGLE
L
DD
www.idt.com
OW
/2 is
S
IGNAL
E
S
6
I
NDED
KEW
NFORMATION
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
and R2/R1 = 0.609.
D
1K
R1
1K
R2
RIVING
VDD
, 1-
L
EVELS
CLK
nCLK
TO
D
IFFERENTIAL
-16 D
IFFERENTIAL
I
NPUT
DD
= 3.3V, V_REF should be 1.25V
C
F
ANOUT
URRENT
ICS8501
REV. B AUGUST 12, 2010
B
M
UFFER
ODE