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email :
0044 (0)118 979 1238
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ACT3A04T (TCXO)
ACT3A04VT (VCTCXO)
The ACT3A04T/ VT family is a range of low frequency TC/ VCTCXOs housed in through hole
packages, with various height options, and provides for tight frequency stabilities across a wide operating
temperature and supply voltage range. Parts are available with internal trimmer options. The devices offe
good reliability at a low cost and, whilst primarily developed for Communications Applications, they are
also very suitable for many other applications including Instrumentation, Phase Locked Loops, Video
Game & many Consumer Applications.
Specification
Parameter
Symbol
Specification
Conditions
Supply Voltage
Vcc
fo
3.3V DC, 5.0VDC & 8.0VDC(±5%)
500kHz ~ 8.00 MHz
VCTCXO 3.0 & 5.0V Only
Please specify
Frequency Range
Temp Operating Range
Temp Storage Range
Initial Calibration Tolerance
Topr
Tstg
Δf/fo
See table below for available range
-55 to +85°C
Adjust to the nominal frequency
±1.0ppm Typical @ 25°C ±2.0°C
With internal trimmer
Without internal trimmer
Frequency Stability
vs Operating Temp
vs Change in Vcc
vs Change in Load
Aging
Δf/fo
Vin
See table below for available stabilities
±0.3ppm for 5% change
±0.3ppm for 10% change
±1ppm / year max @25°C
20mA max
Please specify
Fa
Supply Current (max)
Output
Iop
TTL / CMOS
Frequency Tuning Range ( Mech' )
Frequency Tuning Range (Voltage)
Control Voltage Range
Slope Polarity
±3ppm Typical (25°C ±2.0°C)
±5ppm ~ ±20ppm, ±10ppm Typical
1.65V ±1.50V @ 3.3Vcc, 2.5V ±2.0V @ 5.0Vcc
Positive
By internal trimmer
VCTCXO Only
VCTCXO Only
VCTCXO Only
VCTCXO Only
Vcont
Tosc
Linearity
10% max
Start-up Time
2ms max
SSB Phase Noise (Typical)
-135dBc/Hz max @ 1KHz offset
(Typical for 5.0.0Mhz Device)
STABILITY Vs OPERATING TEMPERATURE
( Referenced to 25°C )
Deg C
±1.5ppm
±2.0ppm
±2.5ppm
±3.0ppm
±5.0ppm
±1.0ppm
-0 ~ +50
-10 ~ +60
-20 ~ +70
-30 ~ +75
-40 ~ +85
For package details / options, please see following page.
Please note that all parameters can not necessarily be specified in the same device
Customer to specify : Frequency, Supply Voltage, Frequency Stability, TCXO or VCTCXO ( T or VT ) & Package 1,2,3 or 4 & Output
In line with our ongoing policy of product evolvement and improvement, the above specification may be subject to change without notice
ISO9001:2000 Registered
For quotations or further information please contact us at:
3 The Business Centre, Molly Millars Lane, Wokingham, Berkshire, RG41 2EY, UK
Issue:1 B3
Date: 11/08/04
http://www.actcrystals.com
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