EM39GT-KHZ Datasheet, PDF (1/1 Pages) EUROQUARTZ limited – CMOS 14 pin DIL compatible, kHz Range

EURO QUARTZ
CMOS 14 pin DIL compatible, kHz Range
EM39GT TCXO
20.0kHz to 50.0kHz
Package pin outs compatible with 14 pin DIL
Frequency range: 20.0 to 50.0kHz; 32.768kHz
Supply voltage 3.3 or 5.0 Volts
Frequency stability from ±1ppm over -30 to +75°C
RoHS compliant
DESCRIPTION
EM39GT series TCXOs are packaged in a miniature 6 pad ceramic
SMD package. With squarewave (CMOS) output, tolerances are
available from ±1.0ppm over -30° to +75°C. The part has a 0.01mF
decoupling capacitor built in.
EM39GT - OUTLINES AND DIMENSIONS
SPECIFICATION
Product Series Code
TCXO:
EM39GT
VCTCXO:
VEM39GT
Frequency Range:
32.768kHz Standard frequency
20.0kHz to 50.0kHz
Output Waveform:
Squarewave
Initial Calibration Tolerance
Models with mech. trimmer: <1.0ppm (at t. 25°±2°C)
Models without trimmer: <2.0ppm (at t. 25°±2°C)
Operating Temperature Range:
See table
Frequency Stability
vs. Ageing:
±1.0 ppm max. first year
vs. Voltage Change:
±0.3 ppm max. ±5% change
vs. Load Change:
±0.3 ppm max. ±10% change
vs. Reflow:
±1ppm max. for one reflow
(Measured after 24 hours)
Supply Voltage:
+3.3 or +5.0Volts
(Specify when ordering)
Output Logic Levels:
Logic High: 90% Vdd min.
Logic Low: 10% Vdd max.
Rise and Fall Times:
10ns max.
Duty Cycle:
50%±5%
Start-up Time:
2ms typical, 5ms max.
Current Consumption:
See table below
FROEuQtpUuEtNLoCaYdS: TABILITY
15pF
Storage Temperature:
-55~+125°C
FREQUENCY STABILITY
Frequency Stability (ppm)
±0.5
±1.0
±1.5
±2.0
0 ~ +50
ASK
P
P
P
-10 ~ +60
x
Temperature
Range (°C)
-20 ~ +70
x
-30 ~ +75
x
P
P
P
x
P
P
x
x
P
-40 ~ +85
x
x
x
x
P = available, x = not available, ASK = call Technical Sales
±2.5
P
P
P
PP
P
VEM39GT VOLTAGE CONTROL SPECIFICATION
Control Voltage:
Standard = +1.5±1.0Volts for all input
voltages. (Contact technical sales if
+2.5±2.0 Volts is required.)
Frequency Deviation: ±6.0 ppm min.
Slope Polarity:
Positive (increase of control voltage increases
output frequency.)
Input Impedance:
10k min.
Modulation Bandwidth: 3.0kHz min. measured at -3dB
Linearity:
10% max.
PART NUMBERING PROCEDURE
CURRENT CONSUMPTION
Frequency
32.768kHz
50kHz
+3.3 V
8.0mA
12mA
Example:
EM39GT33-32.768k-2.5/-30+75
Series Description
TCXO = EM39GT
VCTCXO = VEM39GT
Supply Voltage
33 = 3.3 VDC
5 = 5.0 VDC
Frequency (kHz)
Stability over OTR (±ppm)
Operating Temperature Range (OTR) (°C)
Lower and upper limits.
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: [phone] Fax: [phone] [e-mail] www.euroquartz.co.uk