AR- 133 Rubidium Frequency Standard Ruggedized Low Profile AR-133 Applications 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”) • Secure Communica on • Telecommunica on • So ware Radio • Test Equipment • Cellular Base Sta ons • TV Sta ons, HDTV • Scien fic 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 fine digital frequency control. AR-133 special modes of operaƟon: ● 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: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 Performance SpecificaƟons All specifica ons are at room temperature, quiescent condi ons, sea level ambient unless otherwise specified Input & Outputs Standard OpƟon - 10MHz sine wave +12±2 dBm into 50Ω - (*) In AR133A-01 output level is +7±2 dBm - 5MHz - 1MHz, Square wave - 2.048MHz, Square wave - Other Frequencies (contact factory) Outputs 1PPS, 3V TTL into 50Ω Rise me < 30nSec Pulse width <20uSec 1PPS TTL 50Ω Input RS-232 Monitor & Control CMOS level Control and monitor interface provide: ID, Status, frequency adjustment. Protocol: 9600, 1, 8, 1, No parity Digital frequency adjustment: 7.6E-13 steps over > 5E-7 range For more informa on about the communica on channel contact factory 1PPS IN Frequency out (10MHz / 5MHz) 1PPS Out CommunicaƟon AR-133 Power Supply Lock (BIT) AUX Output (OpƟon) Performance (Rubidium Mode) Parameter and Condi ons Standard Op on < 3E-11 @ 1s < 5E-12 @ 100s Short Term Stability Frequency Time Accuracy (1PPS) Phase Noise <-102 dBc/Hz @ 10Hz <-135 dBc/Hz @ 100Hz <-145 dBc/Hz @ 1kHz <-150 dBc/Hz @ 10kHz <-118 dBc/Hz @ 10Hz <-135 dBc/Hz @ 100Hz <-155 dBc/Hz @ 1kHz <-159 dBc/Hz @ 10kHz (Typical) Harmonics < -44 dBc (up to 70MHz) < -50 dBc (up to 70MHz) Spurious < -80 dBc in the range 10Hz to 100kHz from carrier Warm-up < -110 dBc in the range 10Hz to 100kHz from carrier < 5E-8 (Lock) within 4 minutes @ 25°C ±5E-10 within 5 minutes @ 25°C Retrace < 5E-11 with on-off-on cycle: 24 hours, 48 hours, 12 hours Accuracy @ Shipment < 5E-11 MagneƟc Field SensiƟvity < 8E-11 / gauss up to 3 gauss DC (worst direc on) Long Term Stability <±1E-9 / year (a er 3 month opera on) <±5E-10 / year (at shipment) Disciplined to external 1PPS <±2E-12 (24 hrs average) Temperature Stability and Range ±3E-10 over -20°C to +65°C -40°C to +70°C Long Term Accuracy 1μs / 24 hours (a er disciplining/calibra on) Disciplined to external 1PPS 100ns (50ns typical.) RMS @ 25°C Power ConsumpƟon (Standard Rubidium Mode) @ Steady-state @ Warm-up < 8.25W @ 25°C < 18W@ 25°C < 16W @ 15VDC, room temp. (Time to Lock < 8 min) (**) (*) Unless specified, all parameters relate to 10MHz main output. (**) Low Power at Warm Up (op on) - the internal ovens are ac vated in sequence thereby reducing the warm-up consump on. Page 2 of 5 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 Performance SpecificaƟons (con nued) Power Supply, Dimensions & Weight DC 15±0.3 VDC / 12±0.3 VDC Size 77 mm x 77mm x 25.4 mm (3” x 3” x 1”) Weight ≤ 295 g BIT and Remote Control The built in test detects > 95% of all failures. Receive by hardware (pin number 3 in the D Type connector), open collector (10mA max). High impedance = BIT Fail; short to ground = BIT Pass & Lock. BIT result receives also by serial communica on. Built In Test (BIT): Mode of Opera on Modes of OperaƟon Standard Rubidium Free-run Standard Rubidium disciplining to Ext. 1PPS - Op on Excellent performance in Holdover OCXO disciplining to Ext. 1PPS - Op on (*) Medium performance in Holdover Mixed mode - op on (*) Low average power consump on, good performance Environmental OperaƟng Temperature -20°C to +65 °C (for wider temperature range contact factory) Storage Temperature -40°C to +80°C Humidity Up to 95% at 35°C, non-condensed Mechanical & Electrical ICD D-Type subminiature 9 pins (male) Pin 1 Supply Pin2 GND Pin 3 Lock (BIT) Pin 4 1PPS IN Pin 5 AUX OUT - op on Pin 6 TxD Pin 7 Factory Use Pin 8 1PPS OUT Pin 9 RxD SMA: RF OUT Page 3 of 5 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 How To Order OpƟons DescripƟons Vectron P/N Output Frequency Wave Form 1PPS Input & Output OperaƟng Voltage Special Features AR-133 10MHz Sine √ 15V Standard AR-133-02 10MHz Sine √ 12V 10MHz Sive 12VDC AR-133-04-02 10MHz Sine √ 15V Wide opera ng temperature rage (-40°C TO +74°C BASE PLATE) AR-133-05 1MHz SQR √ 15V 1MHz SQR AR-133-06 2.048MHz SQR √ 15V 2.048MHz OUTPUT AR-133-07 10MHz Sine - 12V Improved EMI protec on AR-133-09 5MHz Sine √ 15V 5MHz OUTPUT AR-133-10 10MHz SQR √ 15V 10MHz SQR AR-133-11 10MHz SQR √ 12V 10MHz SQR 12VDC AR-133-13 10MHz Sine √ 15V Improved Phase Noise AR-133-14 10MHz Sine √ 15V High Stability, Low Phase Noise For other customized configuraƟon - please contact the factory Page 4 of 5 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 Revision History Revision Change Summary 1.0 Product Release Date October 2014 For Additional Information, Please Contact USA: Europe: Asia: Vectron Interna onal 267 Lowell Road, Suite 102 Hudson, NH 03051 Tel: 1.888.328.7661 Fax: 1.888.329.8328 Vectron Interna onal Landstrasse, D-74924 Neckarbischofsheim, Germany Tel: +49 (0) 7268.801.100 Fax: +49 (0) 7268.801.282 68 Yin Cheng Road(C), 22nd Floor One Lu Jia Zui Pudong, Shanghai 200120, China Tel: +86 21 6194 6886 Fax: +86 21 6194 6699 Disclaimer Vectron Interna onal reserves the right to make changes to the product(s) and or informa on contained herein without no ce. No liability is assumed as a result of their use or applicaon. No rights under any patent accompany the sale of any such product(s) or informa on. Page 5 of 5 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014