FAN4852 Просмотр технического описания (PDF) - Fairchild Semiconductor

Номер в каталоге

Компоненты Описание

производитель

FAN4852

9MHz Low-Power Dual CMOS Amplifier

Fairchild Semiconductor 

Layout Considerations

General layout and supply bypassing play major roles

in high-frequency performance. Fairchild evaluation

boards help guide high-frequency layout and aid in

device testing and characterization. Follow the steps

below as a basis for high-frequency layout:

1. Include 6.8μF and 0.01μF ceramic capacitors.

2. Place the 6.8μF capacitor within 0.75 inches of

the power pin.

3. Place the 0.01μF capacitor within 0.1 inches of

the power pin.

4. Remove the ground plane under and around the

part, especially near the input and output pins, to

reduce parasitic capacitance.

Minimize all trace lengths to reduce series

inductances.

Refer to the evaluation board layouts shown in Figure

33 for more information.

When evaluating only one channel, complete the

following on the unused channel:

1. Ground the non-inverting input.

2. Short the output to the inverting input.

Evaluation Board

Description

FAN4852-010 Single Channel, Dual Supply

+IN 1

V+

SMA

- IN 1 R2 0.0

SMA

+IN 2

SMA

R4 0.0

3+

1

2-

R5

R3

50

10K

R1 10K V-

V+

V-

V+

R6 0.0

R-C4

10K

OUT 1

SMA

C9

C10

1uF

0.1uF

C11

C12

1uF

0.1uF

V+

GND

V-

PWRCON

- IN 2 R8 0.0

SMA

R10 0.0

5+

7

6-

R11

R9

50

10K

R7 10K V-

R12 0.0

R-C8

10K

OUT 2

SMA

Figure 33. Evaluation Board Schematic

© 2010 Fairchild Semiconductor Corporation

FAN4852 • Rev. 4.0.0

14

www.fairchildsemi.com

Share Link: