EURO
QUARTZ
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk
VCXO
8 pin Dual-in-Line VCXO
GDW8 LVDS
OUTLINE & DIMENSIONS
PART NUMBERING
Example: 3GDWG-B-80N-60.000
Supply Voltage
3 = +3.3V
Series Designator
GDW
RoHS Status
G = RoHs compliant
Blank = RoHS non-compliant
Stability over temperature range
(See table)
Pullability in ±ppm
Pullability determinator
N = minimum
M = maximum
T = Typical
Frequency in MHz
Frequency range 38MHz to 640MHz
LVDS Output
Supply Voltage 3.3 VDC
Phase jitter 0.4ps typical
Pull range from ±30ppm to ±150ppm
Stability Code
FREQUENCY STABILITY
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
Stability ±ppm Temp. Range
DESCRIPTION
Frequency Range: 750kHz to 800.0MHz
Supply Voltage: 3.3 VDC ±5%
Output Logic: LVDS
RMS Period Jitter: 4.3ps typical
Peak to Peak Jitter: 27.0ps typical
Phase Jitter: 2.35ps typical
Initial Frequency Accuracy: Tune to the nominal frequency
with Vc= 1.65 ±0.2VDC
Output Voltage HIGH (1): 1.4 Volts typical
Output Voltage LOW (0): 1.1 Volts typical
Pulling Range: From ±30ppm to ±150ppm
Control Voltage Range: 1.65 ±1.35 Volts
Temperature Stability: See table
Output Load: 50 into Vdd or Thevenin equiv.
Rise/Fall Times: 0.5ns typ., 0.7ns max.
20% Vdd to 80% Vdd
Duty Cycle: 50% ±5%
(Measured at Vdd-1.3V)
Start-up Time: 10ms maximum, 5ms typical
Current Consumption: 55mA typical, 60mA maximum
(At 202.50MHz)
Static Discharge Protection: 2kV maximum
Storage Temperature: -55° to +150°C
Ageing: ±2ppm per year maximum
Enable/Disable: Not implemented - 4 pin package
RoHS Status: Fully compliant or non compliant
SPECIFICATION
GDW8VCXOs are packaged in an industry-standard, 8pin dual-in-line
package. Typical phase jitter for GDW series VCXOs is 2.35ps. Output
is LVDS. Applications include phase lock loop, SONET/ATM, set-top
boxes, MPEG , audio/video modulation, video game consoles and
HDTV.
