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

11.4 x 9.6 x 2.5mm 4 pad SMD

G42 CMOS

OUTLINE & DIMENSIONS

DESCRIPTION

Frequency range 0.625MHz to 50.0MHz

CMOS/TTL Output

Supply Voltage 5.0 V or 3.3 VDC

Integrated Phase Jitter 1ps typical

PART NUMBERING

Example:

3 G42 B-80N-27.000

Supply Voltage

3 = +3.3V

5 = +5.0V

Series Designator

G64

Stability over temperature range

(See table)

Pullability in ±ppm

Pullability determinator

N = minimum

M = maximum

T = Typical

Frequency in MHz

G42 VCXOs, are packaged in a miniature 11.4mm x 9.6mm x 2.5mm

4 pad SMD package. Typical phase jitter for G series VCXOs is <1ps,

output CMOS/TTL. G series VCXOs use fundamental mode crystal

osccillators. Applications include phase lock loop, SONET/ATM, set-

top boxes, MPEG , audio/video modulation, video game consoles and

HDTV.

10Hz

-70dBc/Hz

100Hz

-105dBc/Hz

1kHz

-132dBc/Hz

10kHz

-142dBc/Hz

1MHz

-150dBc/Hz

Offset

Frequency 27.0MHz

PHASE NOISE

Frequency Range

Vdd = +3.3VDC:

0.625MHz to 50.0MHz

Vdd = +5.0VDC:

1.0MHz to 50.0MHz

Supply Voltage:

+3.3 VDC ±5% or +5.0VDC±5%

Output Logic:

TTL/HCMOS

Integrated Phase Jitter:

1.0ps maximum 12kHz to 20MHz

Period Jitter RMS:

2.0ps typical

Period Jitter Peak to Peak:

14ps maximum

Phase Noise:

See table below

Initial Frequency Accuracy

Tune to the nominal frequency with:

+3.3VDC:

Vc= 1.65V ±0.2V

+5.0 VDC:

Vc= 2.5V ±0.2V

Output Voltage HIGH (1):

90% Vdd minimum

Output Voltage LOW (0):

10% Vdd maximum

Control Voltage Centre

+3.3VDC:

1.65V

+5.0VDC:

2.5V

Control Voltage Range

+3.3VDC:

0.3V to 3.0V

+5.0VDC:

0.5V to 4.5V

Pulling Range

+3.3VDC

±80ppm to ±120ppm (standard)

+5.0VDC:

±80ppm to ±150ppm

(±200ppm available)

Temperature Stability:

See table

Output Load:

CMOS = 15pF, TTL = 2 gates

Start-up Time:

10ms maximum, 5ms typical

Duty Cycle:

50% ±5% measured at 50% Vdd

Rise/Fall Times:

0.7ns typical (15pF load)

Current Consumption:

10 to 45mA, frequency

dependent

Linearity:

10% maximum, 6% typical

Modulation Bandwidth:

10kHz minimum

Input Impedance:

1 MW minimum

Slope Polarity:

Monotonic and Positive. (An

(Transfer function)

increase of control voltage

always increases output

frequency.)

Storage Temperature:

-50° to +100°C

Ageing:

±5ppm per year maximum

RoHS Status:

Fully compliant

SPECIFICATION

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