ICS85454AK-01LF IDT, Integrated Device Technology Inc, ICS85454AK-01LF Datasheet - Page 7

• Manufacturer Part Number: ICS85454AK-01LF
• Description: IC MUX DUAL 2:1/1:2 16-VFQFPN
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution), Multiplexerr

Specifications of ICS85454AK-01LF

• Number Of Circuits: 2
• Ratio - Input:output: 2:1, 1:2
• Differential - Input:output: No/No
• Input: CML, LVDS, LVPECL
• Output: LVDS
• Frequency - Max: 2.5GHz
• Voltage - Supply: 2.375 V ~ 2.625 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-VFQFN
• Frequency-max: 2.5GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 85454AK-01LF

W
I
IN/nIN I
For applications not requiring the use of the differential input,
both IN and nIN 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
R
85454AK-01
NPUTS
ECOMMENDATIONS FOR
IRING THE
NPUT
:
ONTROL
:
D
Integrated
Circuit
Systems, Inc.
IFFERENTIAL
resistor can be used.
P
INS
:
U
F
NUSED
IGURE
I
resistor can be tied from IN to
NPUT TO
Single Ended Clock Input
1. S
I
NPUT AND
A
A
www.icst.com/products/hiperclocks.html
INGLE
PPLICATION
CCEPT
E
O
NDED
C1
0.1u
S
UTPUT
V_REF
INGLE
DD
S
/2 is
IGNAL
P
E
7
INS
I
NDED
O
LVDS
All unused LVDS output pairs can be either left floating or
terminated with 100
recommend that there is no trace attached.
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.
D
NFORMATION
RIVING
UTPUTS
1K
R1
1K
R2
VDD
L
EVELS
D
D
nIN
:
IN
IFFERENTIAL
IFFERENTIAL
I
NPUT
across. If they are left floating, we
-
TO
-LVDS M
ICS85454-01
D
REV. B OCTOBER 28, 2008
UAL
ULTIPLEXER
2:1/1:2