© 2006 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FMS6141 Rev. 1.0.0

6

I/O Configurations

Figure 6 shows a typical AC-coupled input configuration

for driving the filter/driver. Using this configuration, a

0.1µF ceramic capacitor is used to AC couple the input

signal. The coupling capacitor and the input termination

resistor at the input of the filter/driver should be placed

close to the input pin for optimal signal integrity.

Figure 6. Typical Input Configuration

YOUT

75Ω Video Cables

75Ω

75Ω

75Ω

75Ω

Driver

YIN

LOAD1

LOAD2

(optional)

0.65V

800 K ohms

Figure 7. Conceptual Illustration — Input Clamp Circuit and Output Driver

Connected to Drive Single or Dual Video Loads

Figure 8. DC-Coupled Input and DC-Coupled Output

DVD

SoC

75

LCVF

Clamp Mode

0V - 1.4V

Input

Buf

Clamp /

Bias

LPF

R

TERM

Termination &

coupling close

to device input

0.1µF