Voltage Controlled Temperature Compensated Crystal
Oscillators VCTCXO, VM53T Series, CMOS Output
MERCURY
Since 1973
Part Number Format and Example:
Part number example:
VM53T3-20.000-2.5/-30+75
"= Please specify
"
"
"
"
VM53T
3
—
20.000
—
2.5
⁄
-30+75
c
d
e
f
g
c: Product Series. Use “M53T” for TCXO product. d: Voltage code; Use”28” for +2.8 V;
use “3” for +3.0 V; use “33” for +3.3 V; e: Frequency in MHz f: Frequency stability in ppm
g: Operating Temperature range in °C
CMOS Square Wave VCTCXO Test Circuit and Output Wave Form:
T2
Clock Out
T1
A
4
1
3
2
15
pF *
VM53T
M E C
80%
50%
20%
+
-
+
-
V
* Include all the
probe and stray
capacitances
+
-
T1
T2
Tf
*100%
Tr
Duty Cycle =
Environment Performance Specifications
Green Requirement
MSL Level
RoHS compliant, Pb (lead) free
MSL 1 per IPC/JEDEC-STD-020C
Humidity
85% RH, 85°C, 48 hours. Crystal part only.
Hermeticity
Solderability
Vibration
Leak rate 2x10-8 ATM-cm3/sec max. Crystal part only.
MIL-STD-202F method 208E
MIL-STD-202F method 204, 35G, 50 to 2000 Hz
Shock
Storage temp. range
MIL-STD-202F method 213B, test condi. E, 1000GG ½ sine wave
-55 to +125°C
MERCURY
Page 2 of 3
Date: May 1, 2008
Revision: 0
MERCURY [ MERCURY UNITED ELECTRONICS INC ]
