User guide

Q-TECH Corporation
10150 W. Jefferson Blvd.
Culver City, CA 90232
SIZE
A
CAGE NO.
51774
QT814, QT815 and QT816
Sine-Wave 24 Flat Pack
REV.
E
Page 9 of 10
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
TEMPERATURE
RANGE (C)
Stability
Over
Temperature
External Tuning Level
FREQUENCY
(MHz)
QT81: 24 Pin
Flat Pack
4: SINE WAVE 0dBm …..5V N: 0…+50………
1 ppm
X: No tuning E: Eng. Model 10……..350
5: SINE WAVE +7dBm ….12V P: 0…+70…………
1 ppm
R: External resistor M: Flight Model
6: SINE WAVE 7dBm …..15V 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
(See note 1 below)
1. Variations from standard specification are available, please contact factory.
EXAMPLE:
QT815URM-100.000000 would be a Flight Model
version HF TCXO, 24 pin SMD flat pack, sine-wave 12 volts, stability ±1
ppm over -20…+70°C, @ 100 MHz with external tuning via external resistor.
QT815URE-100.000000
would be a Engineering Model version HF TCXO, 24 pin SMD flat pack, sine-wave 12 volts,
stability ±1 ppm over -20…+70°C, @ 100 MHz with external tuning via external resistor.