LTC6991 Linear Technology, LTC6991 Datasheet - Page 8

• Manufacturer Part Number: LTC6991
• Description: Resettable Low Frequency Oscillator
• Manufacturer: Linear Technology

DataSheet.in
LTC6991
pin FuncTions
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
block DiagraM

R1
R2
4
+
with an output resistance of approximately
DIV
CONVERTER
HALT OSCILLATOR
4-BIT A/D
IF I
5
SET
V
+
< 500nA
t
(DCB/S6)
MASTER
MASTER OSCILLATOR
(S6 package pin numbers shown)
DIGITAL
FILTER
I
I
=
SET
SET
50k
1µs
3
SET
R
=
SET
V
I
SET
SET
V
SET
= 1V
MCLK
+
–
DIVIDER
÷ 1024
FIXED
+
–
2 2
GND
1V
4096, 2
PROGRAMMABLE
30Ω. When driving an LED or other low impedance load a
series output resistor should be used to limit source/sink
current to 20mA.
÷1, 8, 64, 512
DIVIDER
15
POR
, 2
18
POL BIT
, 2
21
V
+
POLARITY
INPUT
D
1
R
RST
Q
POLARITY
OUTPUT
OUT
6991 BD
6
t
OUT
6991p