QUARTZ
EURO
GF576 VCXO
CMOS SMD 7 x 5 x 1.8mm, 6 pad
50.1MHz ~ 320.0MHz
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
DESCRIPTION
OUTLINE & DIMENSIONS
GF576 VCXOs, are packaged in an industry-standard, 6 pad, 7mm x
5mm SMD package. GF576 VCXOs provide good phase jitter
performance, less than 1ps.
SPECIFICATION
Frequency Range
Load 15pF:
Load 10pF:
Supply Voltage:
Output Logic:
50.01MHz to 200.0MHz
50.01MHz to 320.0MHz
3.3 VDC ±5%
LVCMOS
Integrated Phase Jitter:
0.4ps typical, 0.5ps maximum
(for 155.250MHz)
Period Jitter RMS:
Period Jitter Peak to peak:
Phase Noise:
3.0ps typical (for 155.250MHz)
20ps typical (for 155.250MHz)
See table below
Initial Frequency Accuracy:
Tune to the nominal frequency
with Vc= 1.65 ±0.2VDC
90% Vdd minimum
10% Vdd maximum
From ±30ppm to ±150ppm
See table
Output Voltage HIGH (1):
Output Voltage LOW (0):
Pulling Range:
Temperature Stability:
Output Load:
15pF
Start-up Time:
Duty Cycle:
Rise/Fall Times:
Current Consumption
<100MHz:
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
>100MHz:
Linearity:
Modulation Bandwidth:
Input Impedance:
Slope Polarity:
60kW minimum
Monotonic and Positive. (An
increase of control voltage
always increases output
frequency.)
(Transfer function)
PHASE NOISE
Offset
Frequency 155.25MHz
Storage Temperature:
Ageing:
Enable/Disable (Tristate):
-50° to +100°C
10Hz
100Hz
1kHz
10kHz
100kHz
1MHz
10MHz
-62dBc/Hz
-92dBc/Hz
±5ppm per year maximum
Pad 2, Enable high or 70% Vdd
min. applied to Tri-state pad
to enable output.
30% Vdd max. to disable output
(high impedance)
-120dBc/Hz
-132dBc/Hz
-128dBc/Hz
-140dBc/Hz
-150dBc/Hz
RoHS Status:
Fully compliant
PART NUMBER SCHEDULE
FREQUENCY STABILITY
Example: 3GF576B-80N-76.000
Temp. Range
Stability Code Stability ±ppm
Supply Voltage
3 = +3.3V
A
B
C
D
E
25
50
100
25
50
0°~+70°C
0°~+70°C
0°~+70°C
-40°~+85°C
-40°~+85°C
-40°~+85°C
Series Designator
GF576
Stability over temperature range
(See table)
F
100
Pullability in ±ppm
Pullability determinator
N = minimum
If non-standard frequency stability is required
Use ‘I’ followed by stability, i.e. I20 for ±20ppm
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