Multiphase Spread-Spectrum EconOscillator
DS1094L
NONVOLATILE MEMORY CHARACTERISTICS
(VCC = +3.0V to 3.6V, unless otherwise noted.)
PARAMETER
EEPROM Writes
SYMBOL
+70°C (Note 4)
CONDITIONS
MIN
10,000
TYP
MAX
UNITS
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:
This is a percentage of the output period. Parameter is characterized but not production tested. This can be varied from
2%, 4%, or 8%.
Note 4:
This parameter is guaranteed by design.
Note 5:
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. t
STAB
is equivalent to approximately 64 f
MOSC
cycles and, hence, will depend on the pro-
grammed clock frequency.
Note 6:
Timing shown is for fast-mode (400kHz) operation. This device is also backward compatible with I
2
C standard-mode timing.
Note 7:
CB—total capacitance of one bus line in picofarads.
Note 8:
Typical frequency shift due to aging is ±0.5%. Aging stressing includes Level 1 moisture reflow preconditioning (24hr
+125°C bake, 168hr 85°C/85%RH moisture soak, and 3 solder reflow passes +240 +0/-5°C peak) followed by 1000hr max
V
CC
biased 125°C HTOL, 1000 temperature cycles at -55°C to +125°C, and 168hr 121°C/2 ATM Steam/Unbiased Autoclave.
Typical Operating Characteristics
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
f
OUT
= 1MHz, 2φ MODE
DS1094L toc01
SUPPLY CURRENT vs. FREQUENCY
V
CC
= 3.3V, 2φ MODE
DS1094L toc02
DUTY CYCLE vs. SUPPLY VOLTAGE
f
OUT
= 2MHz, 2φ MODE
DS1094L toc03
1.50
2.5
51.00
SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
1.25
T
A
= +85°C
T
A
= +25°C
1.00
T
A
= -40°C
0.75
2.0
50.75
DUTY CYCLE (%)
T
A
= +25°C
50.50
T
A
= +85°C
1.0
1.5
0.5
50.25
T
A
= -40°C
0.50
3.00
3.15
3.30
3.45
3.60
SUPPLY VOLTAGE (V)
0
0.1
1.00
fOUT (MHz)
10.00
50.00
3.00
3.15
3.30
3.45
3.60
SUPPLY VOLTAGE (V)
4
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DALLAS [ DALLAS SEMICONDUCTOR ]
