MAS9283 Просмотр технического описания (PDF) - Micro Analog systems

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MAS9283

IC FOR 18.00 - 40.00 MHz VCTCXO

Micro Analog systems 

ELECTRICAL CHARACTERISTICS

DA9283.006

13 July 2006

Parameter

Crystal Frequency Range

Voltage Control Range

Voltage Control Sensitivity

MAS9283AN – AR

Voltage Control impedance

Output Current (VDD = 3 V)

MAS9283 (RL=10kΩ)

MAS9283 (RL=1 kΩ)

MAS9283 (RL=250Ω)

MAS9283 (RL=50Ω)

Output Current (VDD = 5 V)

MAS9283 (RL=10kΩ)

MAS9283 (RL=1 kΩ)

MAS9283 (RL=250Ω)

MAS9283 (RL=50Ω)

Rise and Fall Time (10 - 50 pF)

Output Symmetry

Startup Time

Output Buffer

Enabled

Disabled

Symbol

fo

VC

VCSENS

ZVC

IOUT

Min

10.00

0

IOUT

45

TSTART

1.6

0

Typ

90

1.3

0.3

3.2

12.1

42.6

0.5

4.9

18.7

42.6

48-52

2

Max

56

VDD

10

55

VDD

0.55

Unit

MHz

V

ppm/V

MΩ

mA

Note

1)

2)

mA

ns

%

ms

V

3)

Note 1: An RS < 15 Ω crystal provides 56 MHz maximum frequency (i.e. negative resistance typically 30 Ω). With

an RS = 70 Ω crystal the maximum frequency is typically 40 MHz (i.e. negative resistance typically 110 Ω).

Note 2: VC sensitivity value depends on the crystal used. With a 30 ppm/pF crystal typical values are

MAS9283AN – AR > 90 ppm/V, MAS9283AA – AE > 75 ppm/V, MAS9283AG – AL > 60 ppm/V,

MAS9283AT – AX > 50 ppm/V.

Note 3: If the PD pin is floating the output buffer is active. Oscillator is always running.

IC OUTLINES

Figure 2. IC outline of MAS9283.

Note 1: MAS9283 pads are round with 80 µm diameter at opening.

Note 2: Die map reference is the actual left bottom corner of the sawn chip.

3 (14)

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