Q-Tech QT89 - Manual (Page 5)

5
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-tech.com
QT89 SERIES
HIGH-RELIABILITY MINIATURE CLOCK OSCILLATORS
1.8 to 5.0Vdc - 15kHz to 160MHz
Q-TECH
CORPORATION
QT89 (Revision J, January 2011) (ECO #10087)
Vdd
GND
0.1xVdd
0.9xVdd
VOH
VOL
Tr Tf
TH
T
0.5xVdd
SYMMETRY = x 100%
TH
T
Output Waveform (Typical)
Frequency vs. Temperature Curve
Test Circuit
-
-
Output
Ground
4 3
2
0.1µF
15pF
1
Tristate Function
Power
supply 10k
mA
Vdc
+
+
+
(*)
or
0.01µF
QT89
(*) CL includes probe and jig capacitance
Typical test circuit for CMOS logic
0
5
10
15
20
25
30
35
40
45
0.5 2 8 16 24 27 32 36 40 48 50 55 65 70 75 85 100 125 133 150 160
Freq(MHz)
Icc (mA)
TYPICAL SUPPLY CURRENT ICC (mA) AT 3.3Vdc & 5.0Vdc NO LOAD
Icc 3.3V Icc 5V
The Tristate function on pin 1 has a built-in pull-up resistor typical 50kΩ, so it can
be left floating or tied to Vdd without deteriorating the electrical performance.
Typical start-up time of a QT89HC8M-20.000MHz 5.0Vdc at +200ºC (~1.75ms)
FREQUENCY VS. TEMPERATURE QT89AC8 20.000MHz
-250
-200
-150
-100
-50
0
50
100
150
200
250
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200
Temp (ºC)
ppm