Low-Cost Fixed-Frequency EconOscillator™
OSCILLATOR CHARACTERISTICS
(V
CC
= 2.7V to 3.6V, T
A
= -20°C to +85°C.)
PARAMETER
Output Frequency Range
Available
Output Frequency Tolerance
Voltage Frequency Variation
Temperature Frequency Variation
Frequency Variation Over Voltage
and Temperature
SYMBOL
f
0
∆f
0
f
0
∆f
V
f
0
∆f
T
f
0
∆f
V,T
f
0
V
CC
= 3.3V, T
A
= +25°C (Note 8)
Over voltage range, T
A
= +25°C (Note 2)
Over temperature range,
V
CC
= 3.3V (Notes 3, 4)
-20°C to +25°C
+25°C to +85°C
CONDITIONS
MIN
0.3124
-0.3
-0.35
-0.7
-0.5
-1.0
TYP
MAX
133.3
+0.3
+0.35
+0.7
+0.5
+1.0
UNITS
MHz
%
%
%
%
DS1088L
Over voltage and temperature range
AC ELECTRICAL CHARACTERISTICS
(V
CC
= 2.7V to 3.6V, T
A
= -20°C to +85°C.)
PARAMETER
Power-Up Time
OUT Disabled After Entering
Power-Down Mode
Load Capacitance
Output Duty Cycle (OUT)
SYMBOL
t
POR
+
t
STAB
t
PDN
C
L
(Note 5)
(Note 6)
(Note 7)
f
0
< 80MHz, f
0
≥
80MHz
f
0
< 80MHz
40
50
15
CONDITIONS
MIN
TYP
MAX
100
7
50
60
UNITS
µs
µs
pF
%
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
All voltages are referenced to ground.
This is the change in output frequency due to changes in voltage at T
A
= +25°C.
This is the change in output frequency due to changes in temperature from the +25°C frequency at V
CC
= 3.3V.
Guaranteed by design.
This indicates the time elapsed between power-up and the output becoming active. An on-chip delay is intentionally intro-
duced to allow the oscillator to stabilize. t
STAB
is equivalent to approximately 512 clock cycles and will depend on the pro-
grammed oscillator frequency.
Note 6:
Output disabled in 2 cycles or less of the output frequency.
Note 7:
Output voltage swings may be impaired at high frequencies combined with high-output loading.
Note 8:
Typical frequency shift due to aging is within ±0.2%. Aging stressing includes level 1 moisture reflow preconditioning (24hr
+125°C bake, 168hr +85°C/85%RH moisture soak, and three solder reflow passes +240°C +0°C/-5°C peak) followed by
1000hr (max) V
CC
biased +125°C OP/L, 1000hr unbiased +150°C bake, 1000 temperature cycles at -55°C to +125°C and
168hr +121°C/2 ATM steam/unbiased autoclave.
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3
DALLAS [ DALLAS SEMICONDUCTOR ]
