AR- 133 - Vectron International

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
< [email protected] 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