Q-Tech QT28 User Manual

Q-TECH

COR PORATI ON

Description

Q-Tech’s flat pack crystal oscillators consist of a source
clock square wave generator, logic output buffers
and/or logic divider stages, and a round AT high­precision quartz crystal built in an all metal flat
package.

Features

• Made in the USA

• ECCN: EAR99

• DFARS 252-225-7014 Compliant:
Electronic Component Exemption

• USML Registration # M17677

• Wide frequency range from 0.12Hz to 200MHz

• Available as QPL MIL-PRF-55310/21 (TTL)
QT24 only

• Choice of flat packs and pin outs

• Choice of supply voltages

• Choice of output logic options

• AT-Cut crystal

• All metal hermetically sealed package

• Tight or custom symmetry available

• Capacitive load drive capability (Z output)

• Low height

• External tuning capacitor option

• Fundamental and third overtone designs

• Tristate function option D

• Three-point crystal mounts

• Custom design available tailors to meet
customer’s needs

• Q-Tech does not use pure lead or pure tin in its
products

• RoHS compliant

Applications

• Designed to meet today’s requirements for all
voltage applications

• Wide military clock applications

• Industrial controls

• Microcontroller driver

FLAT PACK

CRYSTAL CLOCK OSCILLATORS

-5.2 to -4.5Vdc & 1.8 to 15Vdc - 0.12Hz to 200MHz

Ordering Information

Sample part number

QT24ACD10M-2 0 . 0 0 0 MHz

QT 24 AC D 10 M-20.000MHz

T = Standard
S = Solder Dip (*)

Model #
(See page 3)

C = CMOS +5V to +15V (**)
AC = ACMOS +5V
HC = HCMOS +5V
T = TTL +5V
L = LVHCMOS +3.3V
N = LVHCMOS +2.5V
R = LVHCMOS +1.8V
E = 10K ECL -5.2V
EH = 10KH ECL -5.2V
EF = 100K/300K ECL -4.5V
PE = PECL +5V
LP = PECL +3.3V
Z = Z output

Tristate Option D
(Left blank if no Tristate)

(*) Hot Solder Dip Sn60 per MIL-PRF 55310 is optional for an additional cost

(**) Please specify supply voltage when ordering CMOS

For frequency stability vs. temperature options not listed herein, request a custom
part number.

For Non-Standard requirements, contact Q-Tech Corporation at

[e-mail]

1 = ± 100ppm at 0ºC to +70ºC
4 = ± 50ppm at 0ºC to +70ºC
5 = ± 25ppm at -20ºC to +70ºC
6 = ± 50ppm at -55ºC to +105ºC

9 = ± 50ppm at -55ºC to +125ºC
10 = ± 100ppm at -55ºC to +125ºC
11 = ± 50ppm at -40ºC to +85ºC
12 = ± 100ppm at -40ºC to +85ºC

Screened to
MIL-PRF-55310,level B
(Left blank if no screening)

Packaging Options

• Standard packaging in a locked anti-static cardboard

Other Options Available For An Additional Charge

• Lead forming available on all packages. Please contact for details.

• P. I. N. D. test (MIL-STD 883, Method 2020)

• Lead trimming

Output frequency

All Flat Pack packages are available in surface mount form.

Specifications subject to change without prior notice.

Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: [phone] - Fax: [phone] - www.q-tec h.com

Flat Pack (Revision F, August 2010 ) (ECO# 9934)

1

Q-TECH

COR PORATI ON

Electrical Characteristics

FLAT PACK

CRYSTAL CLOCK OSCILLATORS

-5.2 to -4.5Vdc & 1.8 to 15Vdc - 0.12Hz to 200MHz

Parameters C AC HC

Output freq. range
(Fo)

Supply voltage (Vdd)

Maximum Applied Voltage (Vdd max.)

Freq. stability (∆F/∆T) See Option codes
Operating temp. (Topr) See Option codes
Storage temp. (Tsto) -62ºC to + 125ºC

Operating supply current
(Idd) (No Load)

Symmetry
(50% of ouput waveform or 1.4Vdc for
TTL)

Rise and Fall times
(with typical load)

Output Load

Start-up time (Tstup) 10ms max.

Output voltage (Voh/Vol)

Output Current (Ioh/Iol)

Enable/Disable
Tristate function

Jitter RMS 1σ (at 25ºC)

Aging (at 70ºC)

QT21, 24, 25
QT22, 26, 28

500Hz — 15MHz

500Hz — 15MHz 500Hz — 85MHz 500Hz — 85MHz 500Hz — 85MHz 500Hz — 85MHz

5V ~ 15Vdc ± 10% 5.0Vdc ± 10%

-0.5 to +18Vdc -0.5 to +7.0Vdc -0.5 to +5.0Vdc

F and Vdd dependent

3 mA max. at 5V up to 5MHz

25 mA max. at 15V up to 15MHz

45/55% max. Fo < 4MHz
40/60% max. Fo ≥ 4MHz

30ns max.

(Measured from 10% to 90%)

0.9 x Vdd min.; 0.1 x Vdd max. 2.4V min.; 0.4V max. 0.9 x Vdd min.; 0.1 x Vdd max. -1.15V min; -1.54V max. (E)

± 1mA typ. at 5V
± 6.8mA typ. at 15V

Call for details

500Hz — 125MHz

15pF // 10kΩ

± 24mA

8ps typ. - < 40MHz

5ps typ. - ≥ 40MHz

0.12Hz — 125MHz

20 mA max. - 0.12Hz ~ < 16MHz
25 mA max. - 16MHz ~ < 40MHz
35 mA max. - 40MHz ~ < 60MHz
45 mA max. - 60MHz ~ < 85MHz
60 mA max. - 85MHz ~ 125MHz

45/55% max. Fo < 12MHz
40/60% max. Fo ≥ 12MHz

15ns max. Fo < 15kHz

6ns max. Fo 15kHz ~ 39.999MHz

3ns max. Fo 40MHz ~ 160 MHz

(Measured from 10% to 90% CMOS or from 0.8V to 2.0V TTL)

±8 mA -1.6mA / TTL

VIH ≥ 2.2V Oscillation;

VIL ≤ 0.8V High Impedance

± 5ppm max. first year / ± 2ppm typ. per year thereafter

T L (*)

0.12Hz — 125MHz

10TTL Fo < 20MHz

6TTL Fo ≥ 20MHz

+40μA / TTL

0.12Hz — 160MHz

3.3Vdc ± 10%

3 mA max. - 0.12Hz ~ < 500kHz

6 mA max. - 500kHz ~ < 16MHz
10 mA max. - 16MHz ~ < 32MHz
20 mA max. - 32MHz ~ < 60MHz
30 mA max. - 60MHz ~ < 100MHz
40 mA max. - 100MHz ~ < 130MHz
50 mA max. - 130MHz ~ 160MHz

15pF // 10kΩ

± 4mA . -50mA

VIH ≥ 0.7 x Vdd Oscillation;

VIL ≤ 0.3 x Vdd High Impedance

15ps typ. - < 40MHz

8ps typ. - ≥ 40MHz

ECL / PECL (**)

1 MHz — 200MHz

8MHz — 85MHz

-5.2Vdc ± 5% (10K / 10KHECL)
5Vdc ± 5% (PECL)

3.3Vdc ± 5% (LVPECL)

0 to -8.0Vdc (10K / 10KHECL)
0 to +8.0Vdc (PECL)
0 to +5.0Vdc (LVPECL)

45 mA max. - 8MHz ~ < 125MHz
75 mA max. - 125MHz ~ 200MHz

45/55% max. Fo < 12MHz
40/60% max. Fo ≥ 12MHz

3.5ns max. Fo < 125MHz
3ns max. Fo 125MHz ~ 200MHz

(Measured from 20% to 80%)
50Ω to -2V (10K / 10KH)

50Ω to Vcc -2V (P & LP)

4V min.; 3.37V max. (PE)

2.27V min.; 1.68V max. (LP)

Call for details

Integrated phase jitter

12kHz - 20MHz 1ps typ.

(*) Available in 2.5Vdc (N) or 1.8Vdc (R)
(**) Please contact Q-Tech for details on 100KECL logic (EF)

Z Output logic can drive up to 200 pF load with typical 6ns rise & fall times (tr, tf)

Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: [phone] - Fax: [phone] - www.q-t ech.co m

Flat Pack (Revision F, August 2010 ) (ECO# 9934)

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