Q-tech QT822 Square Wave Manual de usuario descargar pdf (Pagina 3)

QT821 and QT822 Square-Wave

32 PIN Flat-Pack

REV.

Q-TECH Corporation

10150 W. Jefferson Blvd.

Culver City, CA 90232

SIZE

CAGE NO.

51774

Sheet 3 of 10

3.1.1 Electrical Characteristics

PARAMETER

SYMBOL

CONDITIONS

VALUE

UNIT

Frequency Nom.

3. to 90

MHz

Supply voltage, Nom.

Vs±5%

See part number

generation table

Input Current, max.

Vs, nom. / Ta=+25°C

Freq. stability vs. Operating

temperature

Δf/fc (Ta)

Contact factory for other options

available

See part number

generation table

ppm

Electrical Frequency

Adjustment Min.

(when specified)

Δf/fo

(ΔVcc)

±5 PPM Two options:

1) via an external select-at-test

resistor connected from Pin 1

to Ground

2) Via External tuning voltage

±5.0

ppm

Freq. stability vs. ±5 %

Input Voltage Variation

Δf/fc (Vs)

Ta=+25°C

±1.2

ppm

Freq. stability vs. ±5 %

Load Variation

Δf/fc

(Load)

Vs, nom. / Ta=+25°C

0.3

ppm

Aging Max

Δf/fo

over 10 year (first year ≤ 1 ppm)

±5.0

ppm

Freq. stability vs. Vacuum

Δf/fo

Met by design, not tested

±0.2

ppm

Short term stability

Δf/fc(Δt)

Δt=1sec. (Allan Deviation)

0.001

ppm

RF Output

Contact factory for other options

available

30 to 70

3rd

70.1 to

MHz

Output

VOH / VOL

load=15pF, Vcc=nom.

0.9•Vcc / 0.1•Vcc

Duty cycle

load=15pF/ @50%Vcc, Ta=+25°C

See part number

generation table

Rise- / fall time

tr / tf

20%~80% Vout, 80%~20% Vout

.5…7 (see note A)

nSec

Load

Phase noise @ freq. offset

£ (Δf)

Δf=10Hz

Δf=100Hz

Δf=1kHz

Δf=10kHz

Δf=100kHz

-70

-100

-130

-140

70.1 to 90

MHZ

Contact

factory for

other

options

available

dBc/Hz

Supply Current, rise & fall time are frequency dependent

3.2 Absolute Maximum Rating

Notes: 1 – Without irreversible damages

CHARACTERISTICS

MAXIMUM RATINGS

REMARKS

Supply Voltage

0 to +6.0 VDC

Note 1

DC Input Current

50 mA maximum

Note 1

Storage Temperature range

-55°C to +125°C

Note 1

Lead Temperature (Soldering, 10 seconds)

300°C

Note 1

ITAR-CONTROLLED Q-TECH PROPRIETARY DO NOT COPY OR DISTRIBUTE WITHOUT Q-TECH APPROVAL

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