DS1094L Datasheet, PDF (4/11 Pages) Dallas Semiconductor – Multiphase Spread-Spectrum EconOscillator

Multiphase Spread-Spectrum EconOscillator
NONVOLATILE MEMORY CHARACTERISTICS
(VCC = +3.0V to 3.6V, unless otherwise noted.)
PARAMETER
EEPROM Writes
SYMBOL
CONDITIONS
+70°C (Note 4)
MIN TYP
10,000
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 I²C 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.
(V_CC = +3.3V, T_A = +25°C, unless otherwise noted.)
Typical Operating Characteristics
SUPPLY CURRENT vs. SUPPLY VOLTAGE
f_OUT = 1MHz, 2φ MODE
1.50
SUPPLY CURRENT vs. FREQUENCY
V_CC = 3.3V, 2φ MODE
2.5
DUTY CYCLE vs. SUPPLY VOLTAGE
f_OUT = 2MHz, 2φ MODE
51.00
2.0
1.25
T_A = +85°C
T_A = +25°C
1.0
1.00
1.5
T_A = -40°C
0.75
0.5
50.75
50.50
50.25
T_A = +85°C
T_A = +25°C
T_A = -40°C
0.50
0
3.00
3.15
3.30
3.45
3.60
0.1
SUPPLY VOLTAGE (V)
1.00
fOUT (MHz)
50.00
10.00
3.00
3.15
3.30
3.45
3.60
SUPPLY VOLTAGE (V)
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