ICS845204

CRYSTAL-TO-MLVDS CLOCK SYNTHESIZER W/SPREAD SPECTRUM

ADVANCE INFORMATION

IDT™ / ICS™ M-LVDS CLOCK SYNTHESIZER

10

ICS845204AK SEPTEMBER 25, 2007

3.3V M-LVDS Driver Termination

A general M-LVDS interface is shown in Figure 5 In a 100

Ω

differential transmission line environment, M-LVDS drivers require

a matched load termination of 100

Ω across near the receiver input.

For a multiple M-LVDS outputs buffer, if only partial outputs are

used, it is recommended to terminate the unused outputs.

Figure 5. Typical M-LVDS Driver Termination

Reliability Information

Transistor Count

The transistor count for ICS845204 is: 3749

3.3V

LVDS Driver

R1

100

Ω

R2

100

Ω

–

+

3.3V

50

Ω

50

Ω

100

Ω Differential Transmission Line

θ

Meters per Second

01

2.5

Multi-Layer PCB, JEDEC Standard Test Boards

42.4°C/W

37.0°C/W

33.2°C/W