External Components Description

(Figure 1)

Components

Functional Description

1.

C

i

Input coupling capacitor blocks DC voltage at the amplifier’s input terminals. It also creates a highpass filter

with the internal R

πR

Ω≤ R

i

≤ 100kΩ). Refer to the Application

Information section, Selecting External Components, for an explanation of determining the value of C

2.

C

S

The supply bypass capacitor. Refer to the Power Supply Bypassing section for information about properly

placing, and selecting the value of, this capacitor.

3.

C

B

The capacitor, C

Information section, Selecting External Components, for information concerning proper placement and

selecting C

Typical Performance Characteristics

THD+N vs Frequency

THD+N vs Frequency

10104205

10104206

THD+N vs Output Power

THD+N vs Output Power

10104207

10104208

www.national.com

3