EURO
QUARTZ
8 pin Dual-in-Line
Frequency range 50.01MHz to 200MHz (15pF load)
Frequency range 50.01MHz to 320MHz (10pF load)
LVCMOS Output
Supply Voltage 3.3 VDC
Ultra low jitter less than 1ps
GF8 VCXO
50.0MHz to 320.0MHz
DESCRIPTION
GF8 VCXOs, are packaged in an industry-standard, 8 pin Dual in Line
package. GF8 VCXOs provide excellent phase jitter performance, less
than 1ps.
SPECIFICATION
Frequency Range
Load 15pF:
Load 10pF:
Supply Voltage:
Output Logic:
Integrated Phase Jitter:
Period Jitter RMS:
Period Jitter Peak to peak:
Phase Noise:
Initial Frequency Accuracy:
Output Voltage HIGH (1):
Output Voltage LOW (0):
Pulling Range:
Temperature Stability:
Output Load:
Start-up Time:
Duty Cycle:
Rise/Fall Times:
Current Consumption
<100MHz:
>100MHz:
Linearity:
Modulation Bandwidth:
Input Impedance:
Slope Polarity:
(Transfer function)
50.01MHz to 200.0MHz
50.01MHz to 320.0MHz
3.3 VDC ±5%
LVCMOS
0.4ps typical, 0.5ps maximum
(for 155.250MHz)
3.0ps typical (for 155.250MHz)
20ps typical (for 155.250MHz)
See table below
Tune to the nominal frequency
with Vc= 1.65 ±0.2VDC
90% Vdd minimum
10% Vdd maximum
From ±30ppm to ±150ppm
See table
15pF
10ms maximum, 5ms typical
50% ±5% measured at 50% Vdd
0.7ns typical (15pF load)
30mA maximum (15pF load)
40mA maximum (15pF load)
10% maximum, 6% typical
25kHz minimum
60kW minimum
Monotonic and Positive. (An
increase of control voltage
always increases output
frequency.)
-50° to +100°C
±5ppm per year maximum
Not available (4
pad package)
Fully compliant
PHASE NOISE
Offset
10Hz
100Hz
1kHz
10kHz
100kHz
1MHz
10MHz
Frequency 155.25MHz
-62dBc/Hz
-92dBc/Hz
-120dBc/Hz
-132dBc/Hz
-128dBc/Hz
-140dBc/Hz
-150dBc/Hz
Storage Temperature:
Ageing:
Enable/Disable (Tristate):
RoHS Status:
FREQUENCY STABILITY
Stability Code Stability ±ppm Temp. Range
A
25
0°~+70°C
B
50
0°~+70°C
C
100
0°~+70°C
D
25
-40°~+85°C
E
50
-40°~+85°C
F
100
-40°~+85°C
If non-standard frequency stability is required
Use ‘I’ followed by stability, i.e. I20 for ±20ppm
PART NUMBERING
Example:
3GF8B-80N-156.25
Supply Voltage
3 = +3.3V
Series Designator
GF8
Stability over temperature range
(See table)
Pullability in ±ppm
Pullability determinator
N = minimum
M = maximum
T = Typical
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
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