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

DESCRIPTION

HPF8 series LVPECL output oscillators cover the frequency range

38MHz to 640MHz. The part contains a high 'Q' fundamental crystal

and utilizes a low jitter multiplier circuit.

OUTLINE & DIMENSIONS

Frequency Range:

38.0MHz to 640.0MHz

Output Logic

LVPECL

Phase Noise:

See table

Frequency Stability:

See table

Operating Temp Range

Commercial:

-10° to +70°C

Industrial:

-40° to +85°C

Input Voltage:

+2.5V or +3.3VDC ±5%

Output Voltage

High '1':

Vdd -1.025V min.

Low '0':

Vdd -1.620V max.

(RL = 50W to Vdd -2.0V)

Rise/Fall Times:

0.7ns typical

(20% Vdd to 80% Vdd)

Current Consumption (15pF load):

38MHz to 100MHz:

65mA max.

100.01 to 320MHz:

80mA max.

320.01 to 640MHz:

90mA max.

Load:

50W into Vdd-2.0V

Start-up Time:

5ms typ., 10ms max.

Duty Cycle:

50%±5% (at Vdd -1.3V)

Input Static Discharge Prot:

2kV min.

Storage Temperature Range:

-55°C to +150°C

Ageing:

±3ppm per year max., ±2ppm

thereafter. At T amb +25°C

Enable/Disable

No connection:

Both outputs enabled

Disable:

Both outputs are disabled when

control pad is taken below 0.3V

referenced to ground. Oscillator is

always 'on'. (Special request -

oscillator is off when disabled.)

Enable:

Both Outputs are enabled when

control pad is taken above 0.7 Vcc

referenced to ground.

ABSOLUTE MAXIMUM RATINGS

(Permanent damage may be caused if operated beyond these limits.)

Supply Voltage Vdd:

+4.6V max.

Input Voltage Vi:

Vss -0.5 min., VDD +0.5V max.

Input Voltage Vo:

Vss -0.5 min., Vdd +0.5V max.

SPECIFICATION

PART NUMBERS

HPF8 oscillator part numbers are derived as follows:

Example:

3HPF8-A-250.000

HPF8 LVPECL OSCILLATORS

Supply Voltage

25 = 2.5VDC

3 = 3.3VDC

Series Designation

Package Style

Stability Code

(See table)

Frequency

STABILITY OVER TEMPERATURE RANGE

Stability

Temperature Range Order Code

±ppm

°C

25

-10 to +70

A

50

-10 to +70

B

100

-10 to +70

C

25

-40 to +85

D

50

-40 to +85

E

100

-40 to +85

F

Offset

10Hz

-62

100Hz

-92

1kHz

-120

10kHz

-132

100kHz

-128

1MHz

-140

10MHz

-150

dBc/Hz

PHASE NOISE (156.250MHz)

JITTER (at Fr = 156.520MHz)

Integrated Phase Jitter:

0.4ps typical, 0.5ps max.

(12kHz to 20MHz)

Period Jitter (RMS):

3ps typical 5ps maximum

Period Jitter (peak to peak): 20ps typical 30ps maximum

8 pin Dual-in-Line