ICS8344BYT IDT, Integrated Device Technology Inc, ICS8344BYT Datasheet - Page 13

• Manufacturer Part Number: ICS8344BYT
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Driverr

Specifications of ICS8344BYT

• Number Of Clock Inputs: 2
• Mode Of Operation: Differential
• Output Frequency: 167MHz
• Output Logic Level: LVCMOS
• Operating Supply Voltage (min): 2.375V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: LQFP
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / RoHS Status: Not Compliant

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 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
8344BY
W
IRING THE
DD
= 3.3V, V_REF should be 1.25V and R2/R1 = 0.609.
F
IGURE
D
IFFERENTIAL
1 - S
A
CLK_IN
PPLICATION
INGLE
0.1uF
C1
E
NDED
I
NPUT TO
S
IGNAL
R1
1K
V_REF
R2
1K
13
D
I
NFORMATION
IFFERENTIAL
A
D
V
RIVING
CCEPT
DD
+
-
D
IFFERENTIAL
S
INGLE
-
TO
-LVCMOS F
E
I
NPUT
NDED
L
L
OW
EVELS
S
ANOUT
KEW
ICS8344
REV. A JANUARY 5, 2011
, 1-
B
TO
UFFER
DD
-24
/2 is