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6

I/O Configurations

Figure 6 show s a typical AC-coupled input configuration

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

0.1 µF 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

75

W Video Cables

75

W

75

W

75

W

75

W

Driver

YIN

LOAD1

LOAD2

(optional)

0.65V

800 K ohms

Figure 7. Conceptual Illustration — Input Clam p 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