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W2912 PDF даташит

Спецификация W2912 изготовлена ​​​​«MF Electronics» и имеет функцию, называемую «(W29xx) Oscillator».

Детали детали

Номер произв W2912
Описание (W29xx) Oscillator
Производители MF Electronics
логотип MF Electronics логотип 

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W2912 Даташит, Описание, Даташиты
www.DataSheet4U.com
VOLTAGE
CONTROLLED
OSCILLATORS
PECL, 0° to 70°C
ECLPS Complementary
Thru-Hole VCXOs, 5V
These ECLPS VCXOs feature super-low jitter of
20 ps peak-to-peak . They are based on
the same logic as our M2900s fixed frequency
oscillators, and therefore exhibit identical wave-
form characteristics. These thru-hole VCXOs
are designed for compatibility with digital and
communications systems based on the ECLPS
family of high speed ECL logic.
Users have a choice of the three most widely
used combinations of pull, control voltage and
center frequency deviation. The oscillators are
available at frequencies from 15 to 175 MHz.
Standard frequency stability is ±20 ppm.
All models have dual complementary outputs.
All feature 250 ps typical rise/fall times and pro-
vide superior jitter. Their low output impedance
and dual complementary outputs preserve
waveform symmetry when sending the timing
waveforms over appreciable distance. Output
symmetry of 45/55 is standard.
Designed originally for advanced SONET
applications, their combination of advanced
characteristics provides special appeal to
designers of highly evolved phase-locked-loop
circuits. They provide tight control of the
voltage-to-frequency (F/V) transfer function
and feature jitter specifications of less than
20 picoseconds peak-to-peak. Typical RMSjitter
is 2.048 ps RMS.
These VCXOs are hermetically sealed in full size
(H) or wide (W) DIL packages. Models W2911
through W2913 accept control voltage input
on pin 1, while Models W2971 through W2973
accept control voltage on pin 6. All models are
tested and guaranteed over full 0°C to 70°C
temperature.
FULL SIZE D.I.L.
M2911 thru M2913
DOUBLE WIDE D.I.L.
W2911 thru W2913
W2971 thru W2973
Thru-Hole, 5V
ECLPS Complementary Output
15 MHz to 175 MHz
SUPER-LOW JITTER
20 ps PEAK-PEAK
These VCXO’s provide complementary ECL outputs
thru 175 MHz with extremely fast rise and fall times.
Each oscillator is computer tuned and computer tested
to guarantee stability and frequency pull at 0, 25 and
70 degrees C. All oscillators will capture the rated pull
at all operating temperatures.
Used in Sonet ST33 interface for generation of the
transmitter data clock.
Will drive standard interface chips in complementary ECL.
Duty Cycle is typically 48/52
Three frequency deviation choices.
Output is ECL with typical rise and fall times of 225 ps.
Exceptional linearity with Deviation Sensitivity Ratio
not exceeding 2.0.
Package is choice of double DIL, standard DIL with 7 pins (M1)
LOAD
All outputs must be loaded with 270 ohms to ground, or 50 ohms to +3V.
COMPATIBILTY
Outputs will drive all ECL families when they are operated in PECL configurations.
0.98 max
(24.89)
DOT
DENOTES
PIN 1
.20 MAX
.20 MIN.
Pin 1
.068/025
100 TYP (NON
ACCUMULATIVE)
2
14
57
98
.300 ± .005
150 .500 ± .005
.300
± .005
44 MAX
.800 ± .005
“M-1” Package
0.80 max
(20.32)
Square corner indicates Pin 1
0.275 max
(6.99)
.100 typ
(.025)
0.700 ±.005
(17.78 ±.13)
Centrally Located
Pin 1
0.20/0.30
(.50/.76)
0.20.24
(0.51/.61
.016/.019 Dia
(.41/.48), 16 pins
8
0.600 ±.005
Centrally Located
16 9
Glass Insulators (3)
“W1” Package
ELECTRONICS
10 Commerce Drive, New Rochelle, NY10801 914-576-6570 Fax: 914-576-6204 http://www.mfelectronics.com email:[email protected]
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W2912 Даташит, Описание, Даташиты
www.DataSheet4U.com
VOLTAGE CONTROLLED OSCILLATORS
PECL, 0° to 70°C
Thru-Hole, 5V
ECLPS Complementary Output
15 MHz to 175 MHz
Super-Low Jitter 20 ps Peak-to-Peak
FULL SIZE D.I.L.
M2911 thru M2913
DOUBLE WIDE D.I.L.
W2911 thru W2913
W2971 thru W2973
ONE DIL WIDE, M1 Package
Model
Control
Voltage
for Nominal
(Center) Freq.
Frequency
Stability
@
Center
Frequency Deviation
0.5 volts
4.5 volts
M2911
-50 to -100 ppm 50 to 100 ppm
M2912 2.5 volts ±20 ppm -75 to -150 ppm 75 to 150 ppm
M2913
-100 to -200 ppm 100 to 200 ppm
Voltage
Control
on
Pin 1
W2911
W2912
W2913
DOUBLE DIL WIDE, W1 Package
Voltage
Control
on
Pin 6
Control
Voltage
for Nominal
(Center) Freq.
Frequency
Stability
@
Center
Frequency Deviation
0.5 volts
4.5 volts
W2971
-50 to -100 ppm 50 to 100 ppm
W2972 2.5 volts ±20 ppm -75 to -150 ppm 75 to 150 ppm
W2973
-100 to -200 ppm 100 to 200 ppm
SPECIFICATIONS
Temperature
Operating 0 to 70°C
Input Voltage, VDD
MIN. TYP MAX UNITS
4.5 5.0 5.5 volts
Input Current, including load
current of both ouputs
at 4.5V
at 5.0V
at 5.5V
60
68
76
ma
ma
ma
Output Levels (PECL),
at 5.0 VDD
“0” Level,
“1” Level,
3.2 3.37 volts
4.02 4.1
volts
Symmetry
differential
48/52 45/55
Input Impedance
50 1000
Kohms
Control Voltage Bandwith 10
20
KHz
Frequency Stability
Control Voltage, Vc
Jitter, with Tektronix
11801B & SD22 Head
in jitter color mode
Linearity, best straight line,
percent of total
Rise Time (20 to 80%)
Fall Time (20 to 80%)
0 0.5 to 4.5 15 Volts, DC
15 20 ps, Pk-Pk
5 10
100 225 350
100 225 350
%
ps
ps
MECHANICAL SPECIFICATIONS
Shock 1000 g’s, 0.35 ms. 1/2 sine wave,
3 shocks in each plane
Vibration 10-2000 Hz of .06” d.a. or 20 g’s,
whichever is less
Humidity Resistant to 85% RH at 85°C
Gross Leak Each unit is checked in 125°C flourocarbon
Fine Leak Mass spectrometer leak rate less than
2 x 10 -8 atmos, cc/sec of helium
Pins Kovar, with 7 microinch gold over nickel
Bend Test Will withstand two bends of 90° from reference
Header Steel with gold over nickel
Case Stainless steel, type 304
Marking Resistant to 85% RH at 85°C
Resistance to Solvents MIL STD 202, Method 215
Storage Temperature -55 to +125°C
ENVIRONMENTAL SPECIFICATIONS
Temperature Cycle – Not to exceed ±5 ppm change when exposed to 2
hours maximum at each temperature from 0 to 120°C, with 25°C reference
Shock – 1000 G's, 0.35 ms, 1/2 sine wave, 3 shocks in each plane
Vibration – 10-2000 Hz of .06" d.a. or 20 G's, whichever is less
Humidity – Resistant to 85° R.H. at 85°C
CONNECTIONS
All single
DIL models
W2911-
W2913
W2971-
W2973
Pin Used For
1 Control Voltage Input, Vc
2 Not Used
5 Not Used
7 Ground, VSS
1 Control Voltage Input
2 Not Used
3 Not Used
4 Not Used
5 Not Used
6 Not Used
7 Not Used
8 Ground, VSS
1 Not Used
2 Not Used
3 Not Used
4 Not Used
5 Not Used
6 Control Voltage Input, Vc
7 Not Used
8 Ground, VSS
Pin Used For
8 Output 1
9 Output 2 (Complement)
14 +5V, VDD
9 Output 1
10 Output 2
11 Not used
12 Not used
13 Not used
14 Not used
15 Not used
16 +5V, VDD
9 Output 1
10 Output 2
11 Not used
12 Not used
13 Not used
14 Not used
15 Not used
16 +5V, VDD
ELECTRONICS
10 Commerce Drive, New Rochelle, NY10801 914-576-6570 Fax: 914-576-6204 http://www.mfelectronics.com email:[email protected]
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W2912 Даташит, Описание, Даташиты
www.DataSheet4U.com
VOLTAGE CONTROLLED OSCILLATORS
PECL, 0° to 70°C
Thru-Hole, 5V
ECLPS Complementary Output
15 MHz to 175 MHz
Super-Low Jitter 20 ps Peak-to-Peak
FULL SIZE D.I.L.
M2911 thru M2913
DOUBLE WIDE D.I.L.
W2911 thru W2913
W2971 thru W2973
Waveforms taken on TEK 11801B with SD-22 Head
Fig. 1: 155.52 MHz PECL oscillator, showing
steep rise and fall times and excellent duty
cycle. Levels have 900 mv difference between
“1” and “0”.
Fig. 2: M2912-77.76 MHz oscillator with expan-
sion of transition at 3.7 volts. Jitter is shown by
the histogram of the distribution of the wave-
form at 3.7 volts. The distribution is unimodal,
with peak-to-peak jitter of 16 ps peak-to-peak,
and 2.27 ps RMS.
HOW TO ORDER
For Part Number, put package type before model number,
and add frequency in MHz, for example:
M 2 9 1 2- 7 7 . 7 6 M
“M” is full size DIL
“2912”
“W” is double wide DIL is model
type
“77.76 M”
frequency in MHz
ELECTRONICS
10 Commerce Drive, New Rochelle, NY10801 914-576-6570 Fax: 914-576-6204 http://www.mfelectronics.com email:[email protected]
DataSheet4 U .com
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