1

PIN FUNCTION:

PIN1 – Voltage Control

PIN 2 – Reference voltage / NC

PIN3 – Output

PIN4 – GND

PIN5 – Power Supply

ACTOCXO50

FEATURES

APPLICATIONS

■ Stability to ±0.003PPM

■

PCS / Cellular Base Station

■ Low Aging

■

Digital Switching

■ Compact Package

■

Synthesizer

■ Measurement Equipment

■

SC Cut OCXO

– Please enquire

SPECIFICATIONS

Frequency Range

1.0 ~ 160MHz

Frequency Accuracy ( Adjustment 25

°C)

±0.05 PPM (Centre control voltage)

Frequency Stability vs Temperature

See Table 1

Aging (AT Cut)

±0.001PPM/day, first year ±0.1PPM, 10 years ±1PPM

(SC Cut)

±0.001PPM/day, first year ±0.1PPM, 10 years ±1PPM

Output Type and Load Characteristics

See Table 2

Frequency Stability vs Load

±0.02PPM vs ±10% load change

Supply Voltage

+5.0VDC, +12.0VDC (3V3 Custom option )

Frequency Stability vs Voltage

±0.02PPM vs ±5% voltage change

Supply Consumption

4.0W (Max.) warm-up; 2.0W (Max.) static

Warm-up Time

±0.3PPM, <1 min.

Adjustable Frequency Range

±7.0PPM

Control Voltage Range

0~5V

Slope

Positive

Linearity

±10%

Phase Noise (10MHz SC-Cut)

1Hz, -80dBc/Hz

10Hz, -115dBc/Hz

100Hz, -135dBc/Hz

1kHz, -145dBc/Hz

10kHz, -150dBc/Hz

Storage Temperature Range

-40~+100

°C

FREQUENCY STABILITY vs TEMPERATURE – TABLE 1

( Applies to frequencies < 20MHz & to 12v0 supply. For frequencies >20MHZ & 3v3 & 5v0 Stabilities will be lower –Please enquire)

Frequency Stability vs Temperature

Temperature Range

±0.01PPM (AT Cut)

0 - +50

°C

±0.03PPM (AT Cut)

-20 - +70

°C

±0.05PPM (AT Cut)

-40 - +75

°C

OUTPUT TYPE AND LOAD CHARACTERISTICS – TABLE 2

Output

Waveform

Frequency Range

Oscillation State

Output Characteristics

Clipped Sine

Wave

8MHz - 30MHz

10MHz – 160MHz

F: Fundamental

O: Overtone

Load: 10kΩ/10pF

Output level: >1Vp-p

TTL

1MHz - 30MHz

10MHz – 160MHz

Load: Max. 10 low power consumption TTL gates

“1” level: >+2.4VDC; “0” level: <+0.2VDC

Duty cycle: 45/55

Rise/fall time: <6ns

HCMOS

1MHz - 30MHz

10MHz – 160MHz

Load: Max. 10 low power consumption TTL/HCMOS

“1” level: >+4.3VDC; “0” level: <+0.5VDC

Duty cycle: 45/55

Rise/fall time: <6ns

ACMOS

1MHz - 30MHz

10MHz – 160MHz

Load: Max. 10 low power consumption TTL/ACMOS

“1” level: >+4.3VDC; “0” level: <+0.5VDC

Duty cycle: 45/55

Rise/fall time: <6ns

Sine Wave

8MHz - 30MHz

10MHz - 160MHz

O: Overtone

Load: Nominal value 50Ω

Output level: >2dBm

Harmonic Attenuation: >-25dB

Noise Attenuation: >-60dB

Please note that all parameters cannot necessarily be specified in one device.

Customer to specify : Frequency, Output, Voltage, Stability, and Operating Temperature

In line with our ongoing policy of product improvement and evolvement the above specification may be subject to change without notice

IS9001:2000 Registered –

For quotations or further information, please contact us at :

3 The Business Centre, Molly Millars Lane, Wokingham, Berkshire, RG41 2EY UK

http:/www.actcrystals.com

(Unit: mm)

Tel : 0044 (0) 118 979 1238

Fax: 0044 (0) 118 979 1283

Email : info@actcrystals.com

Issue : 4 S8

Date 14/09/06