LTC6991IS6-TRMPBF View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

LTC6991IS6-TRMPBF

TimerBlox: Resettable, Low Frequency Oscillator

Analog Devices 

LTC6991

PIN FUNCTIONS (DCB/S6)

GND (Pin 5/Pin 2): Ground. Tie to a low inductance

ground plane for best performance.

OUT (Pin 6/Pin 6): Oscillator Output. The OUT pin swings

from GND to V+ with an output resistance of approximately

30Ω. When driving an LED or other low impedance load

a series output resistor should be used to limit source/

sink current to 20mA.

BLOCK DIAGRAM (S6 package pin numbers shown)

R1

4 DIV

R2

5

V+

4-BIT A/D

CONVERTER

DIGITAL

FILTER

MASTER OSCILLATOR

tMASTER

=

1µs

50kΩ

=

VSET

ISET

MCLK FIXED

DIVIDER

÷ 1024

HALT OSCILLATOR

IF ISET < 500nA

ISET

POL BIT

PROGRAMMABLE

DIVIDER

÷1, 8, 64, 512

4096, 215, 218, 221

POR

V+

DQ

R

INPUT

POLARITY

VSET = 1V

SET

3

ISET

RSET

+– 1V

GND

2

RST

1

OUTPUT

POLARITY

OUT

6

tOUT

6991 BD

6991fc

8

For more information www.linear.com/LTC6991

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