Rainbow-electronics DS1094L Instrukcja Użytkownika Pobierz pdf (Strona 3)

DS1094L

Multiphase Spread-Spectrum EconOscillator

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AC ELECTRICAL CHARACTERISTICS

= +3.0V to 3.6V, T

= -40°C to +85°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

Master Oscillator Frequency f

MOSC

MHz

Output Frequency Tolerance ∆f

OUT

= 3.3V,

= +25°C (Note 8)

-2.5 +2.5

Voltage Frequency Variation ∆f

OUT

= +25°C (Note 2)

-0.5 +0.5

0 to +70°C

-1.1 +1.1

Temperature Frequency Variation

∆f

OUT

= 3.3V (Note 2)

-40°C to +85°C

-2.5 +1.1

DAC Step Size

-0.75 +0.75

Peak-to-Peak Jitter (3σ) P1:P0 = 11 (Note 3) 8 %

Load Capacitance C

15 50 pF

2 Phase 50

3 Phase

33.3

Output Duty Cycle (Note 4)

4 Phase 50

Power-Up Time

POR

STAB

(Note 5) 0.1 0.5 ms

AC ELECTRICAL CHARACTERISTICS (See Figure 3)

= +3.0V to 3.6V, T

= -40°C to +85°C, unless otherwise noted. Timing referenced to V

IL(MAX)

and V

IH(MIN)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SCL Clock Frequency f

SCL

(Note 6) 0 400 kHz

Bus Free Time Between Stop and

Start Conditions

BUF

1.3 µs

Hold Time (Repeated) Start

Condition

HD:STA

0.6 µs

Low Period of SCL t

LOW

1.3 µs

High Period of SCL t

HIGH

0.6 µs

Data Hold Time

HD:DAT

0 0.9 µs

Data Setup Time

SU:DAT

100

Start Setup time t

SU:STA

0.6 µs

SDA and SCL Rise Time t

(Note 7)

20 +

0.1C

300 ns

SDA and SCL Fall Time t

(Note 7)

20 +

0.1C

300 ns

Stop Setup Time

SU:STO

0.6 µs

SDA and SCL Capacitive

(Note 7) 400 pF

EEPROM Write Time t

510ms

Input Capacitance C

5pF

1 2 3 4 5 6 7 8 9 10 11

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