ICS8305AGLF IDT, Integrated Device Technology Inc, ICS8305AGLF Datasheet - Page 11
ICS8305AGLF
Manufacturer Part Number
ICS8305AGLF
Description
IC CLK FAN BUFF MUX 2:4 16TSSOP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Fanout Buffer (Distribution), Multiplexerr
Series
HiPerClockS™r
Datasheet
1.ICS8305AGLF.pdf
(17 pages)
Specifications of ICS8305AGLF
Number Of Circuits
1
Ratio - Input:output
2:4
Differential - Input:output
Yes/No
Input
HCSL, LVCMOS, LVDS, LVHSTL, LVPECL, LVTTL, SSTL
Output
LVCMOS, LVTTL
Frequency - Max
350MHz
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Frequency-max
350MHz
Number Of Clock Inputs
2
Output Frequency
350MHz
Output Logic Level
LVCMOS/LVTTL
Operating Supply Voltage (min)
3.135V
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.465V
Package Type
TSSOP
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
16
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
800-1110
800-1110-5
800-1110
8305AGLF
800-1110-5
800-1110
8305AGLF
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Application Information
Recommendations for Unused Input and Output Pins
Inputs:
LVCMOS_CLK Input
For applications not requiring the use of a clock input, it can be left
floating. Though not required, but for additional protection, a 1kΩ
resistor can be tied from the LVCMOS_CLK input to ground.
CLK/nCLK Inputs
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 1kΩ resistor can be tied from CLK to
ground.
LVCMOS Control Pins
All control pins have internal pull-ups or pull-downs; additional
resistance is not required but can be added for additional
protection. A 1kΩ resistor can be used.
Wiring the Differential Input to Accept Single Ended Levels
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 of
IDT™ / ICS™ LVCMOS/LVTTL FANOUT BUFFER
Figure 2. Single-Ended Signal Driving Differential Input
ICS8305
LOW SKEW, 1-TO-4 MULTIPLEXED DIFFERENTIAL/LVCMOS-TO-LVCMOS/LVTTL FANOUT BUFFER
Single Ended Clock Input
C1
0.1u
V_REF
R1
1K
R2
1K
V
DD
CLK
nCLK
DD
/2 is
11
Outputs:
LVCMOS Outputs
All unused LVCMOS output can be left floating. There should be no
trace attached.
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
R2/R1 = 0.609.
ICS8305AG REV. C OCTOBER 23, 2008
DD
= 3.3V, V_REF should be 1.25V and