VCXO
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REV C.
VS4 SERIES: VCXO OSCILLATOR, HCMOS, +3.3 VDC, 7x5mm Package
DESCRIPTION: A crystal controlled, high frequency, highly stable, voltage controlled oscillator, adhering to
HCMOS Standards. The output can be Tri-stated to facilitate testing or combined multiple clocks. The device is
contained in a sub-miniature, very low profile, leadless ceramic SMD package with 6 gold contact pads. This
miniature oscillator is ideal for today's automated assembly environments.
APPLICATIONS AND FEATURES:
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Common Frequencies: 16.384 MHz; 19.44 MHz; 27 MHz; 38.88 MHz; 51.84 MHz; 77.76 MHz
+3.3 VDC HCMOS
Frequency Range from 1 to 125.000 MHz
Miniature Ceramic SMD Package Available on Tape and Reel
Lead Free and ROHS Compliant
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ELECTRICAL PARAMETERS:
PARAMETER
SYMBOL
fo
TEST CONDITIONS*1
VALUE
1.000 ~ 125.000
UNIT
Nominal Frequency
Supply Voltage
Supply Current
Output Logic Type
Load
MHz
VDC
mA
Vcc
Is
+3.3 ±5%
35.0 MAX
HCMOS
15
Connected from output to ground
pF
Voh
Vol
0.9•Vcc MIN
0.1•Vcc MAX
VDC
VDC
Output Voltage Levels
Duty Cycle
DC
Measured at 50% of Vcc
40/60 to 60/40 or 45/55 to 55/45
6.0 MAX *2
%
Rise / Fall Time
tr / tf
Measured at 20/80% and 80/20% Vcc Levels
ns
RMS, Fj = 12 kHz…20 MHz
Peak-to-peak
1 TYP
6.5 TYP
ps
ps
Jitter
J
Overall Frequency Stability
Control Voltage Range
Settability
Op. Temp., Aging, Load, Supply and Cal. Variations
ppm
VDC
VDC
ppm
kΩ
∆f/fc
VC
Positive slope; 10% linearity MAX
0 to +3.3
Vfo
APR
Zin
+1.65 ± 0.25
See Part Numbering *3
10 MIN
Absolute Pull Range
Input Impedance
Minimum guaranteed freq. pull over ∆f/fc
Modulation Bandwidth
BW
-3 dB
10 MIN
kHz
Pin 1
Output Enabled
Output Disabled
En
Dis
High Voltage or No Connect
Ground
0.7•Vcc MIN
0.3•Vcc MAX
VDC
VDC
Absolute voltage range
Vcc(abs)
Non-Destructive
-0.5…+7.0
VDC
*1 Test Conditions Unless Stated Otherwise: Nominal Vcc, Nominal Load, +25 ±3°C
*2 Frequency Dependent
*3 Not All APR’s Available With All Temperature Ranges—Consult Factory For Availability
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ENVIRONMENTAL PARAMETERS:
PARAMETER
Operating temperature range Ta
Storage temperature range T(stg)
SYMBOL
TESTCONDITIONS*1
VALUE
UNIT
SEE PART NUMBER TABLE
-55…+90
°C
°C
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PART NUMBERING SYSTEM:
TEMPERATURE
RANGE (°C)
APR
(ppm)
FREQUENCY
SERIES
SYMMETRY
(MHz)
VS4: VCXO
with HCMOS
Output
A: 40/60 to 60/40% R: 0…+50
T: 45/55 to 55/45% S: 0…+70
U: -20…+70
1.000…125
F: ±32 ppm
H: ±50 ppm
G: ±80 ppm
J: ±100 ppm
V: -40…+85
EXAMPLE: VS4ASH-38.880
VCXO Oscillator, 7x5mm Package, +3.3 VDC Supply Voltage, HCMOS Output, 40/60% Symmetry, 0…+70°C Operating
Temperature Range, ±50 ppm APR, 38.880 MHz, Enable High on Pin 2 (standard)
Consult the factory for any custom requirements.
RALTRON ELECTRONICS CORP. ꢀ10651 N.W . 19t h St ꢀMiami, Florida 33172 ꢀU.S.A.
phone: (305) 593-6033 ꢀfax: (305) 594-3973 ꢀe-mail: sales@raltron.com ꢀWEB: http://www.raltron.com
Rev. X3, December 12, 2003; Approved: C. Husted