VCXO
Series Number Package Description Last Modified
551 8 Pin DIP HCMOS / TTL Jan. 01 2007
FEATURES
- Wide voltage control range
- HCMOS or TTL output
- Industry standard DIP 8 pin lead spacing
- RoHs / Lead Free compliant RoHS Compliant VCXO
8 pin dip vcxo thru hole for pcb assembly
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
PARAMETERS CONDITIONS CHARACTERISTICS UNITS
Output Logic - HCMOS / TTL Output -
Input Voltage (VDD) - 3.3 ±10%  5.0 ±10%  VDC
Frequency Range (fO) - 1.5440 ~ 155.520 MHz
Operating Temperature (TOPR) - 0 ~ +70 (Std.) / -40 ~ 85 (Option) °C
Storage Temperature (TSTG) - -55 ~ +125 °C
Overall Frequency Stability a + b + c + d ±20, ±25, ±50, ±100 max. PPM
(a) Frequency Tolerance Inclusive of Overall Stability -
(b) Temperature Stability Inclusive of Overall Stability (Operating Temperature) -
(c) Input Voltage Stability Inclusive of Overall Stability (VDD ±5%) -
(d) Load Stability Inclusive of Overall Stability (RL ±5%) -
Input Current (IDD) - 10 ~ 20 max. 20 ~ 50 max. mA
Aging @ 25°C ±5 max. PPM/Y
Rise Time (TR) / Fall Time (TF) - 5 max. (0.4V to 2.4V / TTL; 20% to 80% / HCMOS) nS
Pin 1 Control Voltage Range - 1.65 ±1.35 2.5 ±2 V
Output Voltage High "1" VOH TTL Load 2.4 min. VDC
HCMOS Load 2.7 min. VDD-0.5 min.
Output Voltage Low "0" VOL TTL Load 0.4 max. VDC
HCMOS Load 0.5 max.
Duty Cycle - 50 ±10 (Std.) / 50 ±5 (Option) %
Start-Up Time (TS) - 10 max. ms
Jitter (One Sigma) ±25 max. (< 52MHz); ±50 max (> 52MHz) ps
Linearity - ±20 (Std.) / ±10 , ±5 (Option) %
8 pin dhip vcxo specification for design in
PIN CONNECTIONS
#1 Voltage Control
#4 CASE GND
#5 OUTPUT
#8 VDD
PART NUMBER GUIDE
Series
Number		 Frequency Voltage Supply Option Frequency Tolerance & Stability (max.) Operating Temp. (°C) Duty Cycle Pulling Range Linearity
551 - 12.0 M - 3 E N - T P1 20
Oscilent
VCXO
Enter your desired frequency e.g. 12.0M for 12.000 MHz 
5 = 5VDC
3 = 3.3VDC
D =  ±100 PPM
E = ±50 PPM
F = ±25 PPM
G =  ±20 PPM
Blank* = 0~+70
N = -40~+85
Blank*= 50±10%
T = 50±5%
P1 = 50PPM
P2 = 100PPM
P3 = 150PPM
20 = 20%
10 = 10%
05 = 5%
NOTE: - Deviations on all parameters available.  Please consult Oscilent for details.
DEFINITIONS: - Click on the characteristic names above for definitions of that particular characteristic.
*STANDARDS: - "Blank" part number selections  indicate standard variables for that particular characteristic.
GULL WING: - Add -G for Gull Wing at end of part number
PACKAGING: - Standard tube packaging, add -TR for Tape/Reel. Click here for tape/reel specifications
Series No.:
551

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