OSCILENT 494-28.0M-3GN-T

Oscilent Corporation | 494 Series Surface Mount Crystal Oscillators
Page 1 of 2
SMD Oscillators
Series Number
Package
Description
Last Modified
494
6 Pad PCB J-Lead
PECL Output
Jan. 01 2007
FEATURES
- Wave form symmetry of 40/60%
- PECL output
- Industry standard 6 Pad PCB J-Lead SMD Package
- RoHs / Lead Free compliant
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
PARAMETERS
CONDITIONS
CHARACTERISTICS
Output Logic
-
Positive ECL Square Wave (PECL)
Input Voltage (VDD)
-
Frequency Range (fO)
-
19.440 ~ 180.0 (Fund, Third, Fifth / UM-1)
MHz
Operating Temperature (TOPR)
-
0 ~ +70 (Std.) / -40 ~ 85 (Option)
°C
Storage Temperature (TSTG)
-
-55 ~ +125
°C
Overall Frequency Stability
Input Current (IDD)
3.3 ±10%
5.0 ±10%
UNITS
VDC
-
±20 (0 ~ +70°C Only), ±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%)
-
-
80 max.
120 max.
mA
@ 25°C
±1 max.
PPM/Y
Rise Time (TR)
20% to 80% of Waveform
2 max.
nS
Fall Time (TF)
20% to 80% of Waveform
2 max.
nS
VDC
Aging
Output Voltage High "1" VOH
PECL
VDD - 1.025 min.
Output Voltage Low "0" VOL
PECL
VDD - 1.620 max.
VDC
-
50
Ohms
50% of Waveform
50 ±10 (Std.) / 50 ±5 (Option)
%
-
10 max.
mS
RMS
3.5 max.
ps
Load
Duty Cycle
Start-Up Time (TS)
Jitter
Oscilent Corporation | 494 Series Surface Mount Crystal Oscillators
Page 2 of 2
PIN CONNECTIONS
#1 Complimentary Output
#2 Tri-State Enable Low
#3 Ground
#4 Output
#5 N.C.
#6 Vdd
PART NUMBER GUIDE
Series
Number
494
Oscilent
SMD
Oscillators
Frequency
- 28.0 M
Enter your freq.
e.g. 28.0M =28.00 MHz
Voltage
Supply
Option
Frequency
Tolerance &
Stability (max.)
-3
5 = 5VDC
3 = 3.3VDC
E
D=
E=
F=
G=
±100 PPM
±50 PPM
±25 PPM
±20 PPM
Operating Temp. (°
C)
Duty Cycle
N
Blank* = 0~+70
N = -40~+85
Pin 1 Connection
-T
CO
Blank*= 50±10%
T = -50±5%
CO =
Complimentary
Output
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
Series No.: 494
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