ICS889875AKLFT IDT, Integrated Device Technology Inc, ICS889875AKLFT Datasheet - Page 11

• Manufacturer Part Number: ICS889875AKLFT
• Description: IC BUFFER/DIVIDER LVDS 16-VFQFPN
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution), Divider, Multiplexerr

Specifications of ICS889875AKLFT

• Number Of Circuits: 1
• Ratio - Input:output: 1:2
• Differential - Input:output: Yes/Yes
• Input: CML, LVDS, LVPECL
• Output: LVDS
• Frequency - Max: 2GHz
• Voltage - Supply: 2.375 V ~ 2.625 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-VFQFN
• Frequency-max: 2GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 889875AKLFT

Schematic Example
Figure 6 shows a schematic example of the ICS889875. This
schematic provides examples of input and output handling. The
ICS889875 input has built-in 50Ω termination resistors. The input
can directly accept various types of differential signals without AC
coupling. For AC coupling termination, the ICS889875 also
provides the V
Figure 6. ICS889875 Schematic Example
IDT™ / ICS™ LVDS BUFFER/DIVIDER W/INTERNAL TERMINATION
ICS889875
DIFFERENTIAL-TO-LVDS BUFFER/DIVIDER W/INTERNAL TERMINATION
2.5V
LVPECL
R1
150
REF_AC
R2
150
pin for proper offset bias. This example
Zo = 50
Zo = 50
100 Ohm Dif f erential
2.5V
U1
ICS889875
10
11
12
9
0.1u
C2
nIN
VREF_AC
VT
IN
nQ1
nQ0
Q1
Q0
2.5V
11
4
3
2
1
0.1u
shows the ICS889875 input driven by a 2.5V LVPECL driver. The
ICS889875 outputs are LVDS drivers. In this example, we assume
the traces are long transmission lines and the receivers of the
LVDS drivers have high input impedance without built-in
termination.
C1
Q0
nQ0
nQ1
Q1
100 Ohm Dif f erential
100 Ohm Dif f erential
Zo = 50
Zo = 50
Zo = 50
Zo = 50
R3
100
R4
100
ICS889875AK REV. B OCTOBER 27, 2008
-
+
-
+
2.5V
2.5V