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GTQF Datasheet, PDF (1/4 Pages) EUROQUARTZ limited – CMOS Output
EURO QUARTZ
'GTQF' CMOS Output VCXOs
QF Series VCXOs
10MHz to 245MHz
FEATURES
Low jitter <1.0ps phase jitter
Wide frequency Range 10.0MHz to 245.0MHz
Very quick delivery leadtime
Low supply current <15mA at 10MHz
Supply voltage 2.5 or 3.3Volts
Tristate function to conserve power
DESCRIPTION
'GTQF' series oscillators are a precision frequency control component,
providing a CMOS output VCXO with low current consumption, a
wide frequency range with an integrated phase jitter performance of
1.0ps r.m.s. The part is available in two industry-standard packages,
7 x 5mm SMD and 5 x 3.2mm SMD.
GENERAL SPECIFICATION
Output Logic Type:
LVCMOS / LVTTL
Frequency Range:
10.0MHz to 245.0MHz
Load:
15pF
Power Supply Voltage:
2.5±5%VDC or +3.3±10%VDC
Output Voltage 'HIGH':
0.9*VDD minimum
Output Voltage 'LOW':
0.1*VDD maximum
Frequency Stability:
±50ppm over -40° to +85°C*
Duty Cycle:
50%±2%
Rise Time:
300ps minimum**
Fall Time:
600ps maximum**
Current Consumption @+2.5VDD
10.000MHz:
15mA
50.000MHz:
18mA
100.00MHz:
22mA
150.00MHz:
24mA
200.00MHz:
28mA
245.00MHz:
31mA
Current Consumption @+3.3VDD
10.000MHz:
17mA
50.000MHz:
20mA
100.00MHz:
24mA
150.00MHz:
28mA
200.00MHz:
33mA
250.00MHz:
37mA
Current with output disabled: 16mA typical
Start-up Time:
10ms maximum
Ageing:
±2ppm max., first year, ±10ppm
max. over 10 years.
OE Control on Pad 2
Enable:
0.7% VDD min., or no connection
Disable:
0.3%VDD max., (high impedance).
Output Enable Time:
200ns max.
Output Disable Time:
50ns max.
Phase Jitter r.m.s.:
1.0ps typical (12kHz to 20MHz)
Phase Jitter r.m.s.:
100fs (1.875MHz to 20MHz)
Notes:
('536' package displayed)
Page 1 of 4
CONTROL VOLTAGE FUNCTION (Pad 1)
Supply Voltage (Vdd)
VCON Centre:
V. Control Range:
Absolute Pulling Range
(APR):
Linearity:
Transfer Function:
Absolute Voltage:
Input Impedance:
Bandwidth:
+2.5 Volts
+1.25 Volts
+0.2V~+2.3V
+3.3 Volts
+1.65 Volts
+0.3V~+3.0V
±70ppm
±3% typical, ±10% max.
Positive transfer
2.8 Volts Max. 4.0 Volts max.
1MΩ typical
50kHz min., measured at -3dB
PART NUMBERING
Example: 25GTQF536E-70A-100.00
Supply Voltage
25 = 2.5 Volts
3 = 3.3 Volts
Series/Model
'GTQF' = QF series,
HCMOS output
Package
536 = 5.0mm x 3.2mm
576 = 7.0mm x 5.0mm
Temperature Stability
'E' = ±50ppm over -40° to +85°C
Pullability
70A = ±70ppm absolute pull range
Frequency in MHz
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk