Multiphase Spread-Spectrum EconOscillator
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0V to 3.6V, T
A
= -40°C to +85°C, unless otherwise noted.)
PARAMETER
Master Oscillator Frequency
Output Frequency Tolerance
Voltage Frequency Variation
Temperature Frequency Variation
DAC Step Size
Peak-to-Peak Jitter (3σ)
Load Capacitance
Output Duty Cycle (Note 4)
t
POR
+
t
STAB
C
L
2 Phase
3 Phase
4 Phase
Power-Up Time
(Note 5)
P1:P0 = 11 (Note 3)
SYMBOL
f
MOSC
∆f
OUT
∆f
OUT
∆f
OUT
V
CC
= 3.3V,
T
A
= +25°C (Note 8)
T
A
= +25°C (Note 2)
V
CC
= 3.3V (Note 2)
0 to +70°C
-40°C to +85°C
CONDITIONS
MIN
1
-2.5
-0.5
-1.1
-2.5
-0.75
8
15
50
33.3
50
0.1
0.5
ms
%
50
TYP
MAX
2
+2.5
+0.5
+1.1
+1.1
+0.75
UNITS
MHz
%
%
%
%
%
pF
DS1094L
AC ELECTRICAL CHARACTERISTICS (See Figure 3)
(V
CC
= +3.0V to 3.6V, T
A
= -40°C to +85°C, unless otherwise noted. Timing referenced to V
IL(MAX)
and V
IH(MIN)
.)
PARAMETER
SCL Clock Frequency
Bus Free Time Between Stop and
Start Conditions
Hold Time (Repeated) Start
Condition
Low Period of SCL
High Period of SCL
Data Hold Time
Data Setup Time
Start Setup time
SDA and SCL Rise Time
SDA and SCL Fall Time
Stop Setup Time
SDA and SCL Capacitive
Loading
EEPROM Write Time
Input Capacitance
SYMBOL
f
SCL
t
BUF
t
HD:STA
t
LOW
t
HIGH
t
HD:DAT
t
SU:DAT
t
SU:STA
t
R
t
F
t
SU:STO
C
B
t
WR
C
I
(Note 7)
5
5
(Note 7)
(Note 7)
(Note 6)
CONDITIONS
MIN
0
1.3
0.6
1.3
0.6
0
100
0.6
20 +
0.1C
B
20 +
0.1C
B
0.6
400
10
300
300
0.9
TYP
MAX
400
UNITS
kHz
µs
µs
µs
µs
µs
ns
µs
ns
ns
µs
pF
ms
pF
_____________________________________________________________________
3
DALLAS [ DALLAS SEMICONDUCTOR ]
