External Components Description

(Figure 1)

Components

Functional Description

1.

R

i

Inverting input resistance that sets the closed-loop gain in conjunction with R

pass filter with C

π R

2.

C

i

Input coupling capacitor that blocks the DC voltage at the amplifiers input terminals. Also creates a highpass

filter with R

π R

explanation of how to determine the value of C

3.

R

f

Feedback resistance that sets the closed-loop gain in conjunction with R

4.

C

S

Supply bypass capacitor that provides power supply filtering. Refer to the Power Supply Bypassing section

for information concerning proper placement and selection of the supply bypass capacitor.

5.

C

B

Bypass pin capacitor that provides half-supply filtering. Refer to the section, Proper Selection of External

Components, for information concerning proper placement and selection of C

Typical Performance Characteristics

LD Specific Characteristics

LM4871LD

THD+N vs Output Power

LM4871LD

THD+N vs Frequency

10000824

10000823

LM4871LD

THD+N vs Frequency

LM4871LD

THD+N vs Output Power

10000825

10000826

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