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DS1090U-32 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part # DS1090U-32
Description  Low-Frequency, Spread-Spectrum EconOscillator
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS1090U-32 Datasheet(HTML) 3 Page - Maxim Integrated Products

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Low-Frequency, Spread-Spectrum
EconOscillator
_____________________________________________________________________
3
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Internal Master Oscillator
Frequency
fMOSC
4.0
8.0
MHz
Output Frequency Tolerance
∆fOUT
VCC = 3.3V,
TA = +25°C
-11.5
+11.5
%
TA = +25°C, RSET = 60k
Ω,
VCC = 3.0V to 3.6V (Notes 2, 3)
-0.3
+0.3
Voltage Frequency Variation
∆fOUT
TA = +25°C, RSET = 60k
Ω,
VCC = 4.5V to 5.5V (Notes 2, 3)
-1.25
+1.25
%
Temperature Frequency Variation
∆fOUT
VCC = 3.3V
(Notes 2, 3, 4)
-2.5
+2.5
%
J0 = GND, J1 = GND
0
J0 = VCC, J1 = GND
2
J0 = GND, J1 = VCC
4
Peak-to-Peak Dither (3
σ)
(Note 5)
J0 = VCC, J1 = VCC
8
%
Power-Up Time
tPOR +
tSTAB
(Note 6)
0.1
0.5
ms
Load Capacitance
CL
(Note 7)
30
pF
4MHz to 8MHz, TA = +25°C (Note 3)
45
55
Output Duty Cycle
<4MHz (Note 4)
50
%
Output Rise/Fall Time
tR, tF
CL = 15pF
20
ns
AC ELECTRICAL CHARACTERISTICS
(VCC = +3.0V to +5.5V, TA = -40°C to +85°C, unless otherwise noted.)
Note 1:
All voltages referenced to ground.
Note 2:
This is the change observed in output frequency due to changes in temperature or voltage.
Note 3:
See the Typical Operating Characteristics section.
Note 4:
Parameter is guaranteed by design and is not production tested.
Note 5:
This is a percentage of the output period. Parameter is characterized but not production tested. This can be varied from
0% to 8%.
Note 6:
This indicates the time between power-up and the outputs becoming active. An on-chip delay is intentionally introduced to
allow the oscillator to stabilize. tSTAB is equivalent to ~500 clock cycles and is dependent upon the programmed
output frequency.
Note 7:
Output voltage swings can be impaired at high frequencies combined with high output loading.


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