8523BGLF Integrated Device Technology (Idt), 8523BGLF Datasheet - Page 11

• Manufacturer Part Number: 8523BGLF
• Description: Clock Driver 2-IN HSTL 20-Pin TSSOP Tube
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 8523BGLF

• Package: 20TSSOP
• Configuration: 1 x 2:1
• Input Signal Type: CML|HCSL|HSTL|LVDS|LVPECL|SSTL
• Maximum Output Frequency: 650 MHz
• Operating Supply Voltage: 3.3 V

ICS8523 Data Sheet
Recommendations for Unused Input and Output Pins
Inputs:
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.
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.
PCLK/nPCLK Inputs
For applications not requiring the use of a differential input, both the
PCLK and nPCLK pins can be left floating. Though not required, but
for additional protection, a 1kΩ resistor can be tied from PCLK to
ground.
HSTL Output Termination
ICS8523CG REVISION E JANUARY 24, 2011
VDDO
ICS HiPerClockS
HSTL Driv er
HSTL
Zo = 50
Zo = 50
R1
50
R2
50
+
-
VDD
HSTL
11
Outputs:
HSTL Outputs
All unused LVHSTL outputs can be left floating. We recommend that
there is no trace attached. Both sides of the differential output pair
should either be left floating or terminated.
LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-HSTL FANOUT BUFFER
©2011 Integrated Device Technology, Inc.