DC1562B-H datasheet, PDF - EEWORLD Datasheet

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DC1562B-H: Descriptionboard eval ltc6993-2; CategoryDevelopment board/suite/development tools; File Size405KB，28 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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board eval ltc6993-2

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LTC6993-1/LTC6993-2

LTC6993-3/LTC6993-4

TimerBlox: Monostable

Pulse Generator (One Shot)

FeaTures

DescripTion

The

LTC

6993

is a monostable multivibrator (also known

as a “one-shot” pulse generator) with a programmable

pulse width of 1µs to 33.6 seconds. The LTC6993 is part

of the TimerBlox

family of versatile silicon timing devices.

A single resistor, R

SET

, programs an internal master os-

cillator frequency, setting the LTC6993’s time base. The

output pulse width is determined by this master oscillator

and an internal clock divider, N

DIV

, programmable to eight

settings from 1 to 2

DIV

•

SET

•

1µs, N

DIV

= 1, 8, 64,...,2

50kΩ

The output pulse is initiated by a transition on the trigger

input (TRIG). Each part can be configured to generate posi-

tive or negative output pulses. The LTC6993 is available

in four versions to provide different trigger signal polarity

and retrigger capability.

OUT

DEVICE

LTC6993-1

LTC6993-2

LTC6993-3

LTC6993-4

INPUT POLARITY

Rising-Edge

Falling-Edge

RETRIGGER

Yes

Pulse Width Range: 1µs to 33.6 Seconds

Configured with 1 to 3 Resistors

Pulse Width Max Error:

<2.3% for Pulse Width > 512µs

<3.4% for Pulse Width of 8µs to 512µs

<4.9% for Pulse Width of 1µs to 8µs

Four LTC6993 Options Available:

Rising-Edge or Falling-Edge Trigger

Retriggerable or Non-Retriggerable

Configurable for Positive or Negative Output Pulse

Fast Recovery Time

2.25V to 5.5V Single Supply Operation

70µA Supply Current at 10µs Pulse Width

500µs Start-Up Time

CMOS Output Driver Sources/Sinks 20mA

–55°C to 125°C Operating Temperature Range

Available in Low Profile (1mm) SOT-23 (ThinSOT™)

and 2mm

3mm DFN

Watchdog Timer

Frequency Discriminators

Missing Pulse Detection

Envelope Detection

High Vibration, High Acceleration Environments

Portable and Battery-Powered Equipment

applicaTions

The LTC6993 also offers the ability to dynamically adjust

the width of the output pulse via a separate control voltage.

For easy configuration of the LTC6993, download the

TimerBlox Designer tool at

www.linear.com/timerblox.

LT, LTC, LTM, Linear Technology, TimerBlox and the Linear logo are registered trademarks

and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

Typical applicaTion

Envelope Detector

MODULATED

CARRIER

TRIG

OUT

0.1µF

SET

800k

SET

DIV

69931234 TA01a

80kHz CARRIER

SIGNAL

ENVELOPE

TRIG

2V/DIV

LTC6993-2

GND

3.3V

16µs

OUT

2V/DIV

50µs/DIV

69931234 TA01b

69931234fc

For more information

www.linear.com/LTC6993-1

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