AR-133 datasheet, PDF - EEWORLD Datasheet

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AR-133: DescriptionRubidium Frequency Standard; File Size347KB，5 Pages; ManufacturerVectron International, Inc.; Websitehttp://www.vectron.com/

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AR-133 Overview

Rubidium Frequency Standard

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AR- 133

Rubidium Frequency Standard

Ruggedized Low Proﬁle

AR-133

Features

• Long-term-stability: 5E-11/month

• 2E-12 frequency accuracy & 100nSec 1PPS accuracy rela ve to

1PPS input when disciplined

• Short term stability: 5E-12 @100s

• Phase noise: -150dBc/Hz @10kHz

• Outputs: 10 MHz and 1PPS

• Supply voltage: 15 VDC / 12 VDC (op on)

• Steady state power < 8.25W

• Power-saving mode < 1.8W Steady State (op on)

• Size: 77 x 77 x 25.4 mm (3” x 3” x 1”)

Applications

• Secure Communica on

• Telecommunica on

• So ware Radio

• Test Equipment

• Cellular Base Sta ons

• TV Sta ons, HDTV

• Scien

ﬁ

c Equipment

• Calibra on

Description

The AR-133 is a new genera on mul func onal Rubidium Frequency Standard. It is one of the smallest atomic standards available today,

where the accuracy and stability are derived from a quantum transi on that occurs in a free rubidium atom. The unit u lizes a unique

advanced technology, which allows reducing the unit’s size without sacriﬁcing performance.

The AR-133 is comprised of a unique DFLL (Digital Frequency Lock Loop) where a high performance crystal oscillator is locked to the rubidium

atomic line using an embedded microprocessor and a special patented algorithm. The algorithm op mizes the performance vs. external

disturbances, improves temperature stability, and enables very

ﬁ

ne digital frequency control.

AR-133 special modes of opera on:

●

Disciplined to an external 1PPS: this improves the long-term-stability, the accuracy, and synchronizes the phase of the 1PPS output to the

1PPS input.

●

Power-saving modes (op ons): for applica ons where power is limited, the AR133A oﬀers several power saving modes to be selected by

the user.

◦

Mixed Mode (Op on) - in this mode the physics package, which is the main power consumer, is turned on and oﬀ periodically, allowing

lower average power consump on. In this mode the internal OCXO supplies accurate frequency calibrated to the atomic clock

frequency. Although performance is slightly reduced, power consump on is signiﬁcantly lower in this mode.

◦

OCXO Disciplined Mode (Op on) – this mode implements an OCXO disciplining to external 1PPS (with Physics Package shut-down)

and consumes even lower power of about 1.8 W

Page 1 of 5

Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-888-328-7661 • h p://www.vectron.com

Rev 1.2 Mar 2016

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