LTC6907 datasheet(22/28 Pages) AD

tên linh kiện	LTC6907

Giải thích chi tiết về linh kiện	TimerBlox: Long Timer, Low Frequency Oscillator

PDF	28 Pages

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nhà sản xuất	AD [Analog Devices]

Trang chủ	http://www.analog.com

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22 / 28 page

LTC6995-1/LTC6995-2

Rev. B

For more information www.analog.com

2. Place all passive components on the top side of the

board. This minimizes trace inductance.

3. Place RSET as close as possible to the SET pin and

make a direct, short connection. The SET pin is a

current summing node and currents injected into this

pin directly modulate the operating frequency. Having

a short connection minimizes the exposure to signal

pickup.

4. Connect RSET directly to the GND pin. Using a long path

or vias to the ground plane will not have a significant

affect on accuracy, but a direct, short connection is

recommended and easy to apply.

5. Use a ground trace to shield the SET pin. This provides

another layer of protection from radiated signals.

6. Place R1 and R2 close to the DIV pin. A direct, short

connection to the DIV pin minimizes the external signal

coupling.

699512 F22

LTC6995-1

RST

GND

SET

OUT

V+

DIV

0.1µF

RSET

V+

DIV

SET

OUT

GND

RST

V+

RSET

DFN PACKAGE

RST

GND

SET

OUT

V+

DIV

V+

RSET

TSOT-23 PACKAGE

Figure 22. Supply Bypassing and PCB Layout

APPLICATIONS INFORMATION

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