SGM8061/2/3

１０

Typical Application Circuits

Differential Amplifier

The circuit shown in Figure 3 performs the difference function.

If the resistors ratios are equal ( R4 / R3 = R2 / R1 ), then

Vn

Vp

SGM8061

Vref

R1

R2

R3

R4

Figure 3. Differential Amplifier

Low Pass Active Filter

and the –3dB corner frequency is 1/2

is within the bandwidth of the amplifier. The Large values of

feedback resistors can couple with parasitic capacitance and

cause undesired effects such as ringing or oscillation in

high-speed amplifiers. Keep resistors value as low as possible

and consistent with output loading consideration.

SGM8061

R1

R2

R3 = R1 // R2

C

Figure 4. Low Pass Active Filter

Driving Video

SGM8061

75

Ω

75

Ω

CABLE

75

Ω

Figure 5. Typical Video Driving