Datasheet

LTC6990
9
6990fc
For more information www.linear.com/LTC6990
BLOCK DIAGRAM
6990 BD
PROGRAMMABLE DIVIDER
÷1, 2, 4, 8, 16, 32, 64, 128
MASTER OSCILLATOR
Hi-Z WHEN
DISABLED
Hi-Z OUTPUT
UNTIL SETTLED
POR
DIGITAL
FILTER
4-BIT A/D
CONVERTER
Hi-Z BIT
R1
R2
DIV
V
+
OE
OUT
5
4
1
6
HALT OSCILLATOR
IF I
SET
< 500nA
MCLK
+
–
I
SET
V
SET
= 1V
+
–
1V
322
GND SET
R
SET
t
OUT
t
MASTER
=
1µs
50kΩ
•
V
SET
I
SET
(S6 Package Pin Numbers Shown)