FAN7024MUX 查看數據表（PDF） - Fairchild Semiconductor

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FAN7024MUX

675mW CMOS Mono Power Amplifier with Shutdown

Fairchild Semiconductor 

Typical Application Circuit

RF

20KΩ

FAN7024

CI

RI

0.39uF 20KΩ

4 IN-

3

IN+

2

CB 1uF

BP

VDD

CS

10uF

6

VDD

20KΩ

1

SD

NC

100KΩ

BIAS

&

Shutdown

20KΩ

VDD/2

100KΩ

GND

7

20KΩ

VO1

5

8

VO2

RL

8Ω/16Ω/32Ω

External Components Descriptions

Components

Functional Descriptions

1. RI

2. CI

3. RF

4. CS

The inverting input resistor which sets the closed-loop gain in conjunction with Rf. This

resistor also forms a high pass filter with CI at fc=1/(2πRICI)

The input coupling capacitor blocks the DC voltage at the amplifier’s input terminals. Also

creates a high pass with RI at fc=1/(2πRICI). Refer to the section, Proper Selection of

External Components, for an explanation of how to determine the value of CI.

The feedback resistor which sets closed-loop gain in conjunction with RI.

The supply bypass capacitor which provides power supply filtering. Refer to the

Application Information section for proper placement and selection of the supply

bypass capacitor.

5. CB

The bypass pin capacitor which provides half-supply filtering. Refer to the Proper

Selection of External Components section for information concerning proper placement

and selecting CB’s value.

5

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