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
EURO
QUARTZ
'GPQF' LVPECL Output VCXOs
Low jitter <1.0ps phase jitter
Wide frequency Range 10.0MHz to 1450MHz
Low supply current <46mA (100MHz)
Very quick delivery leadtime
Supply voltage range 2.5V or 3.3Volts
Tristate function to conserve power
FEATURES
Output Logic Type: LVPECL
Frequency Range: 10.0MHz to 1450MHz
Load: Differential
Power Supply Voltage: 2.5±5%VDC or +3.3±10%VDC
Output Voltage 'HIGH': V
DD
- 1.03V minimum
V
DD
- 0.6V maximum
Output Voltage 'LOW': V
DD
- 1.85V minimum
V
DD
- 1.6V maximum
Frequency Stability: ±50ppm over -40° to +85°C*
Duty Cycle: 50%±2%
Rise Time: 150ps minimum**
Fall Time: 250ps maximum**
Current Consumption @+2.5V
DD
100.000MHz: 46mA
250.000MHz: 48mA
500.00MHz: 53mA
750.00MHz: 56mA
1GHz: 60mA
1.35GHz: 65mA
Current Consumption @+3.3V
DD
100.000MHz: 48mA
250.000MHz: 50mA
500.00MHz: 55mA
750.00MHz: 59mA
1GHz: 62mA
1.35GHz: 68mA
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 1
Enable: 0.7% V
DD
min., or no connection
Disable: 0.3%V
DD
max., (high impedance).
Output Enable Time: 200ns max.
Output Disable Time: 50ns max.
Phase Jitter r.m.s.: 0.6ps typical (12kHz to 20MHz)
<100fs (1.875MHz to 20MHz)
GENERAL SPECIFICATION
QF Series LVPECL VCXOs
DESCRIPTION
10MHz to 1450MHz
('536' package displayed)
Page 1 of 4
'GPQF' series oscillators are a precision frequency control component,
providing a LVPECL 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.
CONTROL VOLTAGE FUNCTION (Pad 1)
Supply Voltage (Vdd) +2.5 Volts +3.3 Volts
VCON Centre:
+1.25 Volts +1.65 Volts
V. Control Range:
+0.2V~+2.3V +0.3V~+3.0V
Absolute Pulling Range
(APR):
±70ppm
Linearity:
±3% typical, ±10% max.
Transfer Function:
Positive transfer
Absolute Voltage:
2.8 Volts Max. 4.0 Volts max.
Input Impedance:
1MΩ typical
Bandwidth:
50kHz min., measured at -3dB
Example: 25GPQF536E-70A-100.00
PART NUMBERING
Supply Voltage
25 = 2.5 Volts
3 = 3.3 Volts
Series/Model
'GPQF' = QF series,
LVPECL 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
Notes:
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
EURO
QUARTZ
GPQF SERIES PHASE NOISE & PHASE JITTER DATA
SSB
Phase
Noise
Data
(dBc/Hz
typical)
Frequency (MHz) 77.76 122.88 125.00 156.25 212.5 491.25 655.08 1000 1250
10Hz offset
-57 -68 -69 -67 -62 -61 -48 -52 -32
100Hz offset
-94 -99 -97 -92 -93 -86 -85 -82 -68
1kHz offset
-114 -113 -114 -112 -105 -100 -101 -93 -94
10kHz offset
-123 -119 -124 -121 -116 -105 -102 -97 -103
100kHz offset
-124 -120 -129 -124 -118 -105 -103 -97 -105
1MHz offset
-144 -140 -136 -136 -139 -126 -124 -116 -114
5MHz offset
-152 -148 -154 -153 -143 -137 -133 -127 -136
Phase Jitter (ps)
(12kHz ~ 20MHz. r.m.s.)
0.9 0.8 1.1 0.9 1.0 1.1 1.2 1.5 1.1
GPQF SERIES PHASE NOISE & PHASE JITTER DATA
Page 2 of 4
'GPQF' LVPECL Output VCXOs
QF Series LVPECL VCXOs
10MHz to 1450MHz
Power Supply Voltage (V
DD
)
+4.0V maximum
Input Voltage
-0.5V min.; V
DD
+0.5V max.
Output Voltage
-0.5V min.; V
DD
+0.5V max.
Operation Junction Temperature
-40°C min.; +125°C max.
ABSOLUTE MAXIMUM RATINGS