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DS1099U-WZ+

P1-P3P4-P6
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
General Description
The DS1099 is a low-cost, low-power, low-frequency
silicon oscillator that generates two square-wave out-
puts with frequencies between 0.25Hz and 1.048MHz.
Individual output enables allow both outputs to be
enabled/disabled independently. Both outputs are
capable of sinking 16mA, allowing them to directly
interface to light-emitting diodes (LEDs) as well as other
external circuitry. The DS1099 operates over a wide
supply voltage, making it suitable for both 3V and 5V
systems. The device is shipped from the factory custom
programmed and calibrated, ready to be inserted into
the end application.
Contact the factory for custom frequencies or
requirements.
Applications
Flashing LED Status Indicators
Consumer Appliances
Automotive
Servers
Printers
Switch-Mode Power Supplies
Features
♦ Low-Cost, Low-Frequency EconOscillator™ with
Dual Outputs
♦ Factory Programmed
♦ Output Frequencies Independently Programmable
from 0.25Hz to 1.048MHz
♦ 2.7V to 5.5V Single-Supply Operation
♦ No External Timing Components Required
♦ Independent Output Enables
♦ CMOS/TTL-Compatible Outputs
♦ Oscillator Outputs Capable of Sinking 16mA to
Directly Drive LEDs
♦ Relieves Microprocessor of Periodic Interrupt
♦ Low-Power Consumption
♦ Operating Temperature Range: -40°C to +125°C
♦ ±100ppm/°C Temp Drift (MAX)
DS1099
Low-Frequency Dual EconOscillator
________________________________________________________________
Maxim Integrated Products
1
OE1
OEOGND
1
2
8
7
N.C.
N.C.OUT0
V
CC
OUT1
μSOP
TOP VIEW
3
4
6
5
DS1099
Pin Configuration
Ordering Information
OUT0
OUT1
GND
OE0
V
CC
V
CC
V
CC
OE1
N.C.
N.C.
OE1 CAN INSTEAD
BE TIED TO V
CC
IF OUT1 IS NOT USED.
OUTPUTS CAPABLE OF
SINKING 16mA
DS1099
Typical Operating Circuit
Rev 1; 9/07
PART TEMP RANGE PIN-PACKAGE
DS1099U-
O
1
-40°C to +125°C 8 μSOP
EconOscillator is a trademark of Dallas Semiconductor.
Ordering information is continued on the last page.
*
Where
α
0
and
α
1
specify the factory programmed divider set-
tings for OUT0 and OUT1, respectively.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
DS1099
Low-Frequency Dual EconOscillator
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED DC OPERATING CONDITIONS
(T
A
= -40°C to +125°C)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltage Range on V
CC
Relative to Ground ...........-0.5V to +6.0V
Voltage Range on OE0 and OE1
Relative to Ground.................................-0.5V to (V
CC
+ 0.5V),
not to exceed 6.0V
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-55°C to +125°C
Soldering Temperature .......................................See IPC/JEDEC
J-STD-020A Specification
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
(Note 1) 2.7 5.5 V
Input Logic 1 (OE0, OE1)V
IH
0.7 x
V
CC
V
CC
+
0.3
V
Input Logic 0 (OE0, OE1)V
IL
-0.3
+0.3 x
V
CC
V
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +125°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Standby Supply Current I
STBY
OE0 = OE1 = V
CC
145 275 μA
1.048MHz (both) 323
4kHz (both) 146
Active Supply Current (Note 2) I
CC
C
L
= 15pF per output,
OE0 = OE1 = GND,
V
CC
= 3.3V
1Hz (both) 145
μA
High-Level Output Voltage
(OUT0, OUT1)
V
OH
I
OH
= -1mA, V
CC
= MIN 2.4 V
Low-Level Output Voltage
(OUT0, OUT1)
V
OL
I
OL
= 16mA (-40°C to +85°C)
I
OL
= 12mA (-40°C to +125°C)
0.4 V
High-Level Input Current
(OE0, OE1)
I
IH
V
IH
= V
CC
+1.0 μA
Low-Level Input Current
(OE0, OE1)
I
IL
V
IL
= 0.0V -1.0 μA
DS1099
Low-Frequency Dual EconOscillator
_______________________________________________________________________________________ 3
Note 1: All voltages referenced to ground.
Note 2: Active supply current combines the standby current with the output current. The output current is defined by
I = (C
LOAD
+ 12pF ) x V
CC
x f
OUT
for each output when enabled.
Note 3: This is the change observed in output frequency due to changes in temperature or voltage.
Note 4: This parameter is guaranteed by design.
Note 5: This indicates the time between power-up and the outputs becoming active.
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +125°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Master Oscillator Frequency f
MOSC
1.048 MHz
Nominal Output Frequency
f
OUT0,
f
OUT1
0.25 1,048,000 Hz
Output Frequency Tolerance Δf
OUT
T
A
= +25°C, V
CC
= 4.1V -1.0 +1.0 %
T
A
= +25°C 3300 ppm/V
Voltage Frequency Variation
(Note 3)
Δf
OUT
2.7V to 5.5V, T
A
= +25°C -2.0 +2.5 %
Temperature Frequency Variation Δf
OUT
(Notes 3, 4) -100 +100 ppm/°C
Output Duty Cycle 45 55 %
Power-Up Time t
PU
(Note 5) 10 ms
Output Rise/Fall Time t
R
, t
F
C
L
= 15pF (both) 20 ns
Typical Operating Characteristics
(V
CC
= +5.0V, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
C
L
= 15pF, T
A
= +25°C
DS1099 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (μA)
4.84.13.4
100
200
300
400
500
600
700
0
2.7 5.5
OUT0 = OUT1 = 1MHz
OUT0 = OUT1 = 0.25Hz
OUT0 =1MHz,
OUT1 = 0.25Hz
SUPPLY CURRENT vs. TEMPERATURE
V
CC
= 5.5V, C
L
= 15pF
DS1099 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
603510-15
100
200
300
400
500
600
700
0
-40 85
OUT0 = OUT1 = 1MHz
OUT0 = OUT1 = 0.25Hz
OUT0 =1MHz,
OUT1 = 0.25Hz
SUPPLY CURRENT vs. OUTPUT LOAD
(BOTH OUTPUTS LOADED EQUALLY), T
A
= +25°C
DS1099 toc03
C
L
(pF)
SUPPLY CURRENT (mA)
40302010
0.2
0.4
0.6
0.8
1.0
1.2
0
050
V
CC
= 5.5V
V
CC
= 4.0V
V
CC
= 2.7V
P1-P3P4-P6

DS1099U-WZ+

Mfr. #:
Buy DS1099U-WZ+
Manufacturer:
Maxim Integrated
Description:
Clock Generators & Support Products Low-Frequency Dual EconOscillator
Lifecycle:
New from this manufacturer.
Delivery:
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