Low-Cost Fixed-Frequency EconOscillator™
OSCILLATOR CHARACTERISTICS
(V
= 2.7V to 3.6V, T = -20°C to +85°C.)
A
CC
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output Frequency Range
Available
f
0
0.3124
133.3
MHz
∆f
0
V
T
Output Frequency Tolerance
Voltage Frequency Variation
Temperature Frequency Variation
V
= 3.3V, T = +25°C (Note 8)
-0.3
+0.3
%
%
%
%
CC
A
f
0
∆f
Over voltage range, T = +25°C (Note 2)
-0.35
+0.35
A
f
0
-20°C to +25°C
+25°C to +85°C
-0.7
-0.5
+0.7
+0.5
∆f
Over temperature range,
V = 3.3V (Notes 3, 4)
CC
f
0
Frequency Variation Over Voltage
and Temperature
∆f
V,T
Over voltage and temperature range
-1.0
+1.0
f
0
AC ELECTRICAL CHARACTERISTICS
(V
= 2.7V to 3.6V, T = -20°C to +85°C.)
A
CC
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
t
t
+
POR
Power-Up Time
(Note 5)
100
µs
STAB
OUT Disabled After Entering
Power-Down Mode
t
(Note 6)
(Note 7)
7
µs
pF
%
PDN
Load Capacitance
C
15
50
50
60
L
f < 80MHz, f ≥ 80MHz
0
40
0
Output Duty Cycle (OUT)
f < 80MHz
0
Note 1: All voltages are referenced to ground.
Note 2: This is the change in output frequency due to changes in voltage at T = +25°C.
A
Note 3: This is the change in output frequency due to changes in temperature from the +25°C frequency at V
Note 4: Guaranteed by design.
= 3.3V.
CC
Note 5: 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
grammed oscillator frequency.
is equivalent to approximately 512 clock cycles and will depend on the pro-
STAB
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
biased +125°C OP/L, 1000hr unbiased +150°C bake, 1000 temperature cycles at -55°C to +125°C and
CC
168hr +121°C/2 ATM steam/unbiased autoclave.
_____________________________________________________________________
3
DALLAS [ DALLAS SEMICONDUCTOR ]
