ECS VC-TXO-35SM Data Sheet
VC-TXO-35SM
SERIES
VC-TCXO
The VC-TXO-35SM is a VC (Voltage
Controlled) TCXO (Temperature
Compensated Crystal Oscillator) featuring
very tight stability over a wide temperature
range. The small subminiature SMD ceramic
package measures 3.2 x 5.0 x 1.5 mm. The
voltage control has a tuning range of ± 5 ppm
minimum. The low profile package is ideal for
wireless communications applications.
FEATURES
• Highly stable output
• Wide temperature
• Voltage control function
• Small footprint
• Tape and Reel (1,000 pcs.)
• PbFree/RoHS Compliant
PART NUMBERING GUIDE
SERIES FREQUENCY STABILITY / TEMPERATURE OPTION
VC-TXO-35SM – 128 – B
Sample Part Number: VC-TXO35SM-128-B, 128=12.8 MHz, B=±2.5 ppm -30 to +75˚C
STANDARD FREQUENCIES
13.000, 14.400, 16.800 AND 19.440 MHz
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PARAMETERS
FREQUENCY RANGE 12.000 26.000 MHz
FREQUENCY STABILITY/TEMP
SUPPLY VOLTAGE CHANGE +3.0 V ±5% ±0.3 PPM
LOAD CHANGE 10k Ω ±10%//10pF ±10% ±0.2 PPM
AGING
STORAGE TEMPERATURE -40 +85 ˚C
SUPPLY VOLTAGE +3.0 V DC Nominal +2.85 +3.0 +3.15 V DC
INPUT CURRENT Without Load 1.5 mA
OUTPUT VOLTAGE Clipped sine wave (DC-Cut) 0.8 Vp-p
OUTPUT LOAD 10k Ω ±10%//10pF ±10%
FREQUENCY CONTROL RANGE +1.5 V DC ± 1V Positive Slope ±9 ±15 PPM
CONTROL VOLTAGE +0.5 +1.5 +2.5 V
(OPTION A)
(OPTION B)
(OPTION C)
(OPTION D)
Per Year @ +25˚C ± 3˚C ±1 PPM
CONDITIONS
OPER. TEMP.
OPER. TEMP.
OPER. TEMP.
OPER. TEMP.
MIN TYP MAX
-20 ~ +75˚C ±1.5 PPM
-30 ~ +75˚C ±2.5 PPM
-20 ~ +75˚C ±2.5 PPM
-30 ~ +80˚C ±2.5 PPM
VC-TXO-3SM (5V)
UNITS
PACKAGE DIMENSIONS (mm)
#3#4
3.2 ±0.15
#1
1.5 max.
5.0 ±0.15
Figure 1) VC-TXO-35SM Top, Side and Bottom views
#2
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
#1 #2
1.6.07
#4 #3
3.2 0.8
PAD CONNECTIONS
#1 VCONTROL
#2 GND
#3 OUTPUT
#4 V
OSCILLATORS OSCILLATORS
CC
57
1.0
1.2
2.6
4.0
Figure 2) Land Pattern
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