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参数资料
| 型号： | QT14-AC-12-FREQ2 |
| 厂商： | Q-TECH CORP |
| 元件分类： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 12 MHz - 85 MHz, ACMOS OUTPUT |
| 封装： | ROHS COMPLIANT, HERMETIC SEALED, TO PACKAGE-8 |
| 文件页数： | 4/6页 |
| 文件大小： | 302K |
| 代理商： | QT14-AC-12-FREQ2 |
44
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-tech.com
Q-TECH
CORPORATION
TRANSISTOR OUTLINE PACKAGES
TO-5 and TO-8 CRYSTAL CLOCK OSCILLATORS
1.8 to 15Vdc - 0.045Hz to 125MHz
TransistorOutlinePackages (RevisionA,May2008)(ECO#9304)
8
4
5
1
2
QT1T3
+5VDC
GND
OUTPUT
0.01uF
20pF(*)
6k
270
D1
D2
D3
D4
Cext
D1-D4: 1N4148 or equivalent
(*) CL includes scope probe capacitance
TYPICAL TEST CIRCUIT FOR QT1T3 (10TTL)
Frequencyvs.TemperatureCurve
-50
-40
-30
-20
-10
10
20
30
40
0
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
05
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100 105 110 115 120 125
SN2
SN3
SN4
SN1
Frequency
Stability
(PPM)
FREQUENCY STABILITY VERSUS TEMPERATURE QT1L -36MHz
Temperature (°C)
Vdd
GND
0.1xVdd
0.9xVdd
VOH
VOL
TrTf
TH
T
0.5xVdd
SYMMETRY =
x 100%
TH
T
Ts
Start-up box
Oscilloscope
DUT
Variable Ramp
54616B Agilent
TYPICAL SET-UP FOR START-UP TIME
OutputWaveform(Typical)
StartupTime
SupplyCurrent
TestCircuit
-
Output
Ground
Vdd Out
GND
0.1F
15pF
E/D
Tristate Function
Power
supply
10k
mA
Vdc
+
(*)
or
0.01F
(*) CL includes probe and jig capacitance
Typical test circuit for CMOS logic
0
5
10
15
20
25
30
35
40
45
0.5
28
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 CMOS Logic NO LOAD
Icc 3.3V
Icc 5V
POWER
SUPPLY
+
-
mA
0.1F
Vdc
-
Vdd OUT
OUT
GND
Typical test circuit for TTL logic.
0.01F
Rs
(*) CL inclides the loading effect of the oscilloscope probe.
E/D
CL
+
-
RL
LOAD
6 TTL
10 TTL
CL(*)
12pF
20pF
RL
430Ω
270Ω
RS
10kΩ
6kΩ
or
Vdd
TheTristatefunctiononpin1hasabuilt-inpull-upresistortypical50k,soit
canbeleftfloatingortiedtoVddwithoutdeterioratingtheelectricalperformance.
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