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Q-Tech QT822 Square Wave User Manual

Page 9

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QT821 and QT822 Square-Wave

32 PIN Flat-Pack

REV.

Q-TECH Corporation

10150 W. Jefferson Blvd.
Culver City, CA 90232

SIZE

A

CAGE NO.

51774

Sheet 9 of 10

E

3.8

Engineering Models

Engineering Models are fit, form, and function representative of Flight Models and of commercial
construction using commercial parts of same generic type as Flight Models. Completed oscillators are
not screened.

NOTES:

This oscillator is offered to meet the specifications above and is not guaranteed to meet any

other requirements.

PART NUMBER GENERATION

SERIES

Output type

and supply

voltage

SYMMETRY

TEMPERATURE

RANGE (°C)

Stability

Over

Temperature

External

Tuning

Level

FREQUENCY

(MHz)

1: HCMOS, 5.0V A:40%…60%

N: 0…+50………

±1 ppm

X: No tuning (± 1
ppm accuracy at
25°C)

E: Eng. Model

3.000…90.000
(See note 1)

2: HCMOS, 3.3V T:(See note 2) P: 0…+70………… ±1 ppm

R: External resistor M: Flight Model

Q: 0…+70……… ±2 ppm

V: External voltage

R: 0…+70………

±5 ppm

U: -20…+70…… ±1 ppm

V: -20…+70……

±2 ppm

W:-20…+70……

±5 ppm

X: -40…+85……

±4 ppm

Y: -40…+85……

±5 ppm

Z: -40…+85……

±10 ppm

A: 0…..+50……

± 0.5ppm

G: 0….+70……

± 0.5ppm

H:-30…+70……

±2 ppm

K:-30…+70……

±4 ppm

QT82:
32 Pin

Flat

Pack

(See note 1 below)

1. Variations from standard specification are available, please contact factory.
2. 45/55 Symmetry Contact factory for options available.




EXAMPLE:

QT822AURM-50.000000 would be a Flight Model version HF TCXO, 32 pin SMD flat pack, HCMOS 3.3 volts, 40/60
symmetry, stability ±1 ppm over -20…+70°C, @ 50 MHz with external tuning via external resistor

QT822AURE-50.000000 would be an Engineering Model version HF TCXO, 32 pin SMD flat pack, HCMOS 3.3 volts,
40/60 symmetry, stability ±1 ppm over -20…+70°C, @ 50 MHz with external tuning via external resistor





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