8545BGLF Integrated Device Technology (Idt), 8545BGLF Datasheet - Page 3

• Manufacturer Part Number: 8545BGLF
• Description: Clock Driver 2-IN LVDS 20-Pin TSSOP Tube
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 8545BGLF

• Package: 20TSSOP
• Configuration: 1 x 2:1
• Input Signal Type: LVCMOS|LVTTL
• Maximum Output Frequency: 650 MHz
• Operating Supply Voltage: 3.3 V

Function Tables
Table 3A. Control Input Function Table
After CLK_EN switches, the clock outputs are disabled or enabled following a rising and falling input clock edge as shown in Figure 1.
In the active mode, the state of the outputs are a function of the CLK1 and CLK2 inputs as described in Table 3B.
Figure 1. CLK_EN Timing Diagram
Table 3B. Clock Input Function Table
IDT™ / ICS™ LVDS FANOUT BUFFER
ICS8545
LOW SKEW, 1-TO-4, LVCMOS/LVTTL-TO-LVDS FANOUT BUFFER
CLK1 or CLK2
CLK1, CLK2
CLK_EN
Inputs
OE
Q0:Q3
Q0:Q3
0
1
1
1
1
0
1
Q0:Q3
HIGH
LOW
CLK_EN
X
0
0
1
1
Outputs
Disabled
Inputs
Q0:Q3
HIGH
LOW
CLK_SEL
X
0
1
0
1
3
Selected Source
CLK1
CLK2
CLK1
CLK2
Enabled
Q0:Q3
Active
Active
ICS8545BG REV. D OCTOBER 28, 2008
Hi-Z
Low
Low
Outputs
Q0:Q3
Active
Active
High
High
Hi-Z