ICS854S202AYIT IDT, Integrated Device Technology Inc, ICS854S202AYIT Datasheet - Page 10

• Manufacturer Part Number: ICS854S202AYIT
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Multiplexerr

Specifications of ICS854S202AYIT

• Mode Of Operation: Differential
• Output Frequency: >3000MHz
• Output Logic Level: LVDS
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: TQFP
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / RoHS Status: Not Compliant

W
IDT
R
I
CLK/nCLK I
For applications not requiring the use of the differential input,
both CLK and nCLK can be left floating. Though not required, but
for additional protection, a 1k
ground.
LVCMOS C
All control pins have internal pull-ups or pull-downs; additional
resistance is not required but can be added for additional
protection. A 1k
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
NPUTS
ECOMMENDATIONS FOR
ICS854S202I
12:2, DIFFERENTIAL-LVDS MULTIPLEXER
IRING THE
™
/ ICS
:
™
LVDS MULTIPLEXER
ONTROL
NPUT
D
IFFERENTIAL
:
resistor can be used.
P
INS
:
U
NUSED
I
NPUT TO
resistor can be tied from CLK to
F
IGURE
I
NPUT AND
A
Single Ended Clock Input
CCEPT
1. S
A
PPLICATION
INGLE
O
S
INGLE
UTPUT
E
NDED
C1
0.1u
DD
V_REF
/2 is
E
P
S
NDED
INS
IGNAL
10
I
L
NFORMATION
O
LVDS O
All unused LVDS output pairs can be either left floating or
terminated with 100
recommend that there is no trace attached.
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
D
EVELS
UTPUTS
RIVING
1K
R1
1K
R2
VDD
UTPUT
D
nCLKx
:
IFFERENTIAL
CLKx
I
NPUT
ICS854S202AYI REV. A JANUARY 26, 2007
across. If they are left floating, we
DD
= 3.3V, V_REF should be 1.25V
PRELIMINARY