ICS8524AY IDT, Integrated Device Technology Inc, ICS8524AY Datasheet - Page 8

• Manufacturer Part Number: ICS8524AY
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Driverr

Specifications of ICS8524AY

• Number Of Clock Inputs: 2
• Mode Of Operation: Differential
• Output Frequency: 500MHz
• Output Logic Level: HSTL
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: TQFP EP
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / RoHS Status: Not Compliant

W
Figure 2 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
8524AY
IRING THE
D
IFFERENTIAL
I
F
NPUT TO
IGURE
2. S
A
A
CLK_IN
PPLICATION
INGLE
CCEPT
0.1uF
C1
E
NDED
S
INGLE
DD
www.idt.com
/2 is
S
IGNAL
R1
1K
V_REF
R2
1K
E
8
I
NDED
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.
NFORMATION
D
V
RIVING
DD
D
+
-
L
IFFERENTIAL
EVELS
D
IFFERENTIAL
-
TO
I
NPUT
-HSTL F
DD
= 3.3V, V_REF should be 1.25V
L
OW
S
ANOUT
KEW
REV. B DECEMBER 6, 2010
ICS8524
, 1-
B
TO
UFFER
-22