SMD Oscillators
Series Number Package Description Last Modified
493 6 Pad PCB Base PECL Output Jan. 01 2007
FEATURES
- Wave form symmetry of 45/55%
- PECL / LVPECL output
- Industry standard 6 Pad PCB SMD Package
- RoHs / Lead Free compliant RoHS PECL Oscillator
Crystal Oscillator PECL 6 Pad PCB Base
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
PARAMETERS CONDITIONS CHARACTERISTICS UNITS
Output Logic - Positive ECL Square Wave (PECL) -
Input Voltage (VDD) - 3.3 ±5%  5.0 ±5%  V
Frequency Range (fO) - 19.440 ~ 180.000 MHz
Operating Temperature (TOPR) - 0 ~ +70 (Std.) / -40 ~ 85 (Option) °C
Storage Temperature (TSTG) - -55 ~ +125 °C
Overall Frequency Stability - ±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) - 80 max. 120 max. mA
Aging @ 25°C ±3 max. ppm/Y
Rise Time (TR) 20% to 80% of Waveform 1 max. nS
Fall Time (TF) 20% to 80% of Waveform 1 max. nS
Output Voltage High "1" VOH PECL Vcc - 1.025 min. Vcc - 0.88 min. Vdc
Output Voltage Low "0" VOL PECL Vcc - 1.620 max. Vcc - 1.555 max. Vdc
Load Vdd - 2.0Vdc 50 Ohms
Duty Cycle 50% of Waveform 50 ±10 (Std.) / 50 ±5 (Option) %
Jitter RMS 1 max. pS
Specification for 6 Pad PCB Base PECL Crystal Oscillator
PIN CONNECTIONS
#1 Tri-State or No Connection
#2 No Connect or Tri-State
#3 Ground
#4 Output
#5 Complimentary Output
#6 +Vcc
PART NUMBER GUIDE
Series
Number
Frequency Voltage Supply Option Frequency Tolerance & Stability (max.) Operating Temp.
(°C)
Duty Cycle Tri-State Pin Position
493 - 28.0 M - 3 E N - T TS1
Oscilent
SMD Oscillators
Enter your freq.
e.g. 28.0M = 28.00 MHz
5 = 5VDC
3 = 3.3VDC
D =  ±100 PPM
E = ±50 PPM
F = ±25 PPM
G = ±20 PPM
Blank* = 0~+70
D = -20~+70
K = -30~+85
N = -40~+85
P = 0~+85
Blank*= 50±10%
T = -50±5%
TS1 = Pin # 1
TS2 = Pin # 2
NOTE: - Deviations on all parameters available.  Please consult Oscilent for details.
DEFINITIONS: - Click on the characteristic names above, for definitions of the particular characteristic.
*STANDARDS: - "Blank" part number selections, indicate standard variables for the particular characteristic.
PACKAGING: - Add -TR for Tape/Reel. Click here for tape/reel specifications
Oscilent Corporation - CALL 949.252.0522
18195 East McDurmott Street . Building D . Irvine . CA 92614 . USA
Fax: 949.252.0599 . E-Mail: Sales@Oscilent.com
Series No.:
493

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