Rainbow Electronics DS1086L - Manual (Page 4)

DS1086
DS1086 Spread-Spectrum EconOscillator
4 _____________________________________________________________________
AC ELECTRICAL CHARACTERISTICS
(V CC = 5V ±5%, T A = 0°C to +70°C.)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
Frequency Stable After Prescaler
Change
1 Period
Frequency Stable After DAC or
Offset Change
(Note 9) 0.2 1 ms
Power-Up Time t
por
+ t
stab
(Note 10) 0.1 0.5 ms
Enable of OUT After Exiting
Power-Down Mode
t
stab
500 µs
OUT High-Z After Entering
Power-Down Mode
t pdn 0.1 ms
Load Capacitance C L (Note 11) 15 50 pF
Output Duty Cycle (OUT) 40 60 %
PDN Rise/Fall Time 1 µs
AC ELECTRICAL CHARACTERISTICS: 2-WIRE INTERFACE
(V
CC
= 5V ±5%, T A = 0°C to +70°C.)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
Fast mode 400
SCL Clock Frequency f SCL
Standard mode
(Note 12)
100
kHz
Fast mode 1.3 Bus Free Time Between a STOP
and START Condition
t BUF
Standard mode
(Note 12)
4.7
µs
Fast mode 0.6 Hold Time (Repeated) START
Condition
t HD:STA
Standard mode
(Notes 12, 13)
4.0
µs
Fast mode 1.3
LOW Period of SCL t LOW
Standard mode
(Note 12)
4.7
µs
Fast mode 0.6
HIGH Period of SCL t HIGH
Standard mode
(Note 12)
4.0
µs
Fast mode 0.6 Setup Time for a Repeated
START
t SU:STA
Standard mode
(Note 12)
4.7
µs
Fast mode
Data Hold Time t HD:DAT
Standard mode
(Notes 12, 14, 15) 0 0.9 µs
Fast mode 100
Data Setup Time t SU:DAT
Standard mode
(Note 12)
250
ns
Fast mode 20 + 0.1C B 300 Rise Time of Both SDA and SCL
Signals
t R
Standard mode
(Note 16)
20 + 0.1C B 1000
ns
Fast mode 20 + 0.1C B 300 Fall Time of Both SDA and SCL
Signals
t F
Standard mode
(Note 16)
20 + 0.1C B 1000
ns