Specifications subject to change without notice. All dimensions in inches. Copyright 1998 The Connor-Winfield Corporation
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
3.3V Surface Mount
5.0mm x 7.5mm Oscillators
VKB51B2, VKB52B2, VKB53B2
VCXO
The Connor-Winfield, RoHS compliant, VKB51B2,
VKB52B2, and VKB53B2 are hermetically sealed,
Surface Mount, 3.3V Voltage Controlled Crystal
Oscillators (VCXO) with the enable/disable function
on pad 2. The VKB51B2, VKB52B2, and VKB53B2
are designed for phased lock loop applications
requiring low jitter and tight stability.
Operating Specifications
Parameter
Minimum
Nominal
Maximum
Units
Notes
Frequency Range (Fo)
1.0
-
52
MHz
Frequency Tolerance
Model VKB51B2
-25
-
25
Model VKB52B2
-50
-
50
ppm
1
Model VKB53B2
-100
-
100
Operating Temperature Range
0
-
70
C
Supply Voltage (Vcc)
3.0
3.3
3.6
Vdc
Supply Current (Icc)
1.0 to 29.999 MHz
-
-
15
30 to 52 MHz
-
-
25
mA
Jitter:
(BW=12kHz to 20 MHz)
-
-
1
ps RMS
(BW=10Hz to 20 MHz)
-
-
5
Absolute Maximum Ratings
Parameter
Minimum
Nominal
Maximum
Units
Notes
Storage Temperature
-55
-
125
C
Supply Voltage (Vcc)
-0.5
-
7.0
Vdc
Control Voltage (Vc)
-0.5
-
Vcc
Vdc
Features:
RoHS Compliant
3.3V Operation
Overall Frequency Tolerance:
VKB51B2: 25ppm
VKB52B2: 50ppm
VKB53B2: 100ppm
Low Jitter <1pS RMS
Temperature Range 0 to 70C
Enable / Disable Pad 2
Leadless Surface Mount Package
Tape and Reel Packaging
Notes:
1. Referenced to (Fo) measured with control voltage @ 1.65Vdc. Inclusive of frequency vs. temperature stability, supply voltage change, load change, shock and
vibration, 15 years aging.
2. Referenced to Fo at T=25C Positive Slope
3. The Output is enabled with no connection on the enable pin.
Specifications subject to change without notice. All dimensions in inches. Copyright 1998 The Connor-Winfield Corporation
Bulletin
Vx265
Page
1 of 2
Revision
08
Date
16 Dec 2003
US Headquarters:
630-851-4722
European Headquarters:
+353-61-472221
Input Characteristics
Parameter
Minimum
Nominal
Maximum
Units
Notes
Control Voltage Range (Vc)
0.15
1.65
3.15
Vdc
Frequency Pullability
100
-
-
ppm
2
Monotonic Linearity
-10
-
10
%
Input Impedance
-
50K
-
Ohm
Modulation Bandwidth (3dB)
10
-
-
kHz
Enable Input Voltage - High (Vih)
2.7
-
-
Vdc
3
Disable Input Voltage - Low (Vil)
-
-
0.3
HCMOS Output Characteristics
Parameter
Minimum
Nominal
Maximum
Units
Notes
Load
-
-
15
pf
Voltage High (Voh)
2.7
-
-
Vdc
Low (Vol)
-
-
0.33
Current High (loh)
-4
-
-
mA
Low (lol)
-
-
4
Duty Cycle at 50% of Vcc
45
50
55
%
Rise / Fall Time 10% to 90%
-
-
5
nS
Start-up Time
-
-
10
mS
E/D
N/C
POWER
SUPPLY
A
V
OSC
INPUT for C/V
.01uf
OSCILLOSCOPE
FREQ
COUNTER
PROBE
CL
1 2
3
6 5
4
7.48 DIA
(190mm)
.69
(17.5mm)
.315
(8.0mm)
.039 R
(1.0mm)
.826 DIA
(21mm)
.511 DIA
(13mm)
9.84 DIA
(250mm)
MEETS EIA--481A and EIAJ--1009B
2,000 PCS/REEL
120
.08
(2.0mm)
3.15
(8.0mm)
.08
(2.0mm)
.157
(4.0mm)
.06 DIA
(1.5mm)
.31
(7.9mm)
.21
(5.4mm)
PIN 1
.295
(7.5mm)
.07
(1.75mm)
.63
(16.0mm)
Specifications subject to change without notice. All dimensions in inches. Copyright 1998 The Connor-Winfield Corporation
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
Package Characteristics
Package
Hermetically sealed, ceramic leadless package.
Bulletin
Vx265
Page
2 of 2
Revision
08
Date
16 Dec 2003
Soldering
General Conditions
260C max x 10 sec max x 2 times max or
230C max x 180 sec max x 1 time
Typical Operation Data
20 to 100 sec up to 215C, 50 sec at 215C,
(Vapor phase reflow)
then down to room temperature per 1 to 5C / sec
Environmental Characteristics
Temperature Cycle
The specimen shall meet electrical characteristics after
tested 5 cycles of -55C / 30 minutes and +125C / 30 minutes
Hermetical
No bubbles appear in Flourinert (FC-43) at 125C 5C for 5 minutes
Solvent Resistance
Marking will withstand immersion in
Isopropyl Alcohol or Trichloroethylene
Mechanical Characteristics
Free Drop
The specimen shall meet electrical characteristics after tested 3 times,
Free Drop testing on the hard wooden board from a height of 75 cm.
Vibration
The specimen shall meet electrical characteristics after tested
by the following conditions: 10-55Hz 1.5mm Amplitude,
55-2000 Hz 20 G's, 2 hours for each plane
Thermal Shock
After applied Thermal Shock of
245C max x 10 sec max x 2 times, or 215C max x 180 sec max,
the specimen shall meet electrical characteristics
Solderability
(EIAJ-RCX-0102/101 Condition 1a)
1) Flux: MIL-F-14256 (WW Rosin=25%, Isopropyl Alcohol = 75%)
2) Solder: QQ-S-571 (Sn = 63%, Pb = 37%)
3) Solder bath temperature: 235C 5C
4) Depth of immersion: Up to electrical terminal
5) Immersing time: Within 2 sec 0.5 sec into solder bath
After performing the above procedures, a newly soldered coverage shall be greater than 90%
After performing the above procedures, a newly soldered coverage shall be greater than 90%
After performing the above procedures, a newly soldered coverage shall be greater than 90%
After performing the above procedures, a newly soldered coverage shall be greater than 90%
After performing the above procedures, a newly soldered coverage shall be greater than 90%
Pin Function
1: Control Voltage
2: Tri-state Enable /Disable
3: Ground
4: Output
5: N/C
6: VDD
Suggested Pad Layout
Test Circuit
Output Waveform
Ordering Information
VKB51B2 - 51.84 MHz
VCXO
SERIES
CENTER
FREQUENCY
Tape and Reel Dimensions
.295 MAX
(7.5mm)
.079 MAX
(2.0mm)
0.102
(2.6mm)
.197 MAX
(5.0mm)
0.055
(1.4mm)
Dimensional .02" (0.5mm)
Tolerance: .008"
(0.2mm)
#1
#2
#3
#6
#5
#4
#1
#2
#3
#6
#5
#4
Dimensional Tolerance:
.02"
(.508mm)
.005" (.127mm)
Bypass capacitor, Cby, should be
ceramic capacitor
.01uf.
0.165
(4.2mm)
VDD
GROUND
Cby
0.200
(5.08mm)
0.100
(2.54mm)
0.079
(2.0mm)
0.070
(1.8mm)
SYMMETRY
"1" LEVEL
"0" LEVEL
+2.64Vdc
+1.65Vdc
+0.66Vdc
0.0Vdc
TR
TF
80% Vcc
50% Vcc
20% Vcc
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