QT78L Series
3.3Vdc, SMD CERAMIC J-LEAD HIGH-RELIABILITY CLOCK OSCILLATORS
_______________________________________________________________________________________
Q-Tech Corporation
10150 West Jefferson Blvd. Culver City, CA 90232
Tel (310) 836 - 7900 Fax (310) 836 – 2157
Doc#078-002 Rev. A February 2006 www.q-tech.com
Page 1 of 2
FEATURES
• Broad frequency range from 15 kHz to 160MHz.
• Supply voltage 3.3Vdc.
• LVCMOS logic.
• Tri-State Output Option (D).
• Low Phase Jitter.
• J-Lead Hermetically sealed 0.550” x 0.350” package.
ELECTRICAL CHARACTERISTICS
PARAMETERS
SPECIFICATIONS
Output frequency range (Fo) 15.000 kHz – 160.000MHz
Supply voltage (Vdd) 3.3Vdc ± 10%
Frequency stability (?F/Fo) See Option codes
Operating temperature (Topr) See Option codes
Storage temperature (Tsto) -62°C to +125°C
Operating supply current (Idd)
(No Load)
6 mA max. (15kHz ~ < 15MHz)
10 mA max. (15MHz ~ < 32MHz)
20 mA max. (32MHz ~ < 60MHz)
30 mA max. (60MHz ~ < 100MHz)
40 mA max. (100MHz ~ < 130MHz)
50 mA max. (130MHz ~ 160MHz)
Symmetry (15pF, at 50% output level) 45/55% max. (15kHz ~ <15MHz); 40/60% max. (15MHz ~ 160MHz)
(Tighter symmetry available)
Rise and Fall times (Tr/Tf)
(at 3.3Vdc supply, 15pF //10kohms)
(Between 10% and 90% of output level)
6ns max. (15kHz to < 40MHz)
3ns max. (40MHz ~ 160MHz)
Output load (CL) 15pF // 10kohms
(30pF max. for F = 50MHz)
Start-up time (Tstup) 5ms max.
Output voltage (Voh/Vol) 0.9*Vdd min. ; 0.1*Vdd max.
Enable/Disable Tristate function (add D) Pin 1 VIH = 2.2V Oscillation; VIH = 0.8V High Impedance
Jitter RMS 1s (at 25°C, 3.3Vdc supply) 15ps typ. (< 40MHz); 8ps typ. (= 40MHz)
Aging (at 70°C) ± 5ppm/year max.
Freq. vs. supply voltage tolerance (±10%)
± 4ppm max.
ORDERING INFORMATION
QT78
L
D
10 B
M
- 85.000MHz
Logic Tristate Option Freq. stability vs. Temperature (**) Symmetry Screening option
L =
LVCMOS
D
(Left blank if
Non Tristate)
1 = ±100ppm at 0°C to +70°C
4 = ± 50ppm at 0°C to +70°C
5 = ± 25ppm at -20°C to +70°C
6 = ± 50ppm at -55°C to +105°C
9 = ± 50ppm at -55°C to +125°C
10 = ±100ppm at -55°C to +125°C (*)
11 = ± 50ppm at - 40°C to +85°C
12 = ±100ppm at - 40°C to +85°C
14 = ± 20ppm at -20°C to +70°C
15 = ± 25ppm at - 40°C to +85°C
(*) Q-Tech standard
B (45/55%)
(Left blank if
standard)
M
(Designate M for Product Level B
MIL-PRF-55310 environmental
screening).
(Left blank if unscreened)
QT78L Series
3.3Vdc, SMD CERAMIC J-LEAD HIGH-RELIABILITY CLOCK OSCILLATORS
_______________________________________________________________________________________
Q-Tech Corporation
10150 West Jefferson Blvd. Culver City, CA 90232
Tel (310) 836 - 7900 Fax (310) 836 – 2157
Doc#078-002 Rev. A February 2006 www.q-tech.com
Page 2 of 2
For frequency stability vs. temperature options not listed herein, please request a custom part number.
Part numbering examples: QT78LD9M-100.000MHz; QT78L10-16.000MHz.
(**) Some temperature vs. frequency stability options may not be available at certain frequencies. Please call for details.
OUTLINE DRAWING
PIN NO. FUNCTION
1 TRISTATE or NC
2 GND/CASE
3 OUTPUT
4 VDD
Dimensions: inch
Environmental Specifications:
Temperature cycling: MIL-STD-883, Method 1010, Cond. B.
Constant acceleration: MIL-STD-883, Method 2001, Cond. A, Y1.
Seal Fine Leak: MIL-STD-883, Method 1014, Cond. A.
Burn-in: 160 hours, 125°C with load.
Aging: 30 days, 70°C, ±1.5ppm max.
Vibration sinusoidal: MIL-STD-202, Method 204, Cond. D.
Shock, non operating: MIL-STD-202, Method 213, Cond. I.
Thermal shock, non operating: MIL-STD-202, Method 107, Cond. B.
Ambient pressure, non operating: MIL-STD-202, 105, Cond. C, 5 minutes dwell time minimum.
Resistance to solder heat: MIL-STD-202, Method 210, Cond. E.
Moisture resistance: MIL-STD-202, Method 106.
Terminal strength: MIL-STD-202, Method 211, Cond. C.
Resistance to solvents: MIL-STD-202, Method 215.
Solderability: MIL-STD-202, Method 208.
Standard packaging in Anti-Static Plastic Tube, unless otherwise specified.
Tape and Reel Packaging and leads solder dipped available.
Packaging quantity:
35pcs/tube.
1,000pcs/reel.
Remark: Specifications subject to change without prior notice.
Please contact our factory or visit our website, www.q-tech.com, for technical notes and updates.
Please contact us for variations on these specifications.
