AR-51-09 Datasheet, PDF (4/8 Pages) Vectron International, Inc – GPS-Disciplined Rubidium Clock

Temperature
Temperature AlƟtude
Humidity
Random VibraƟon
Performance SpecificaƟons (con nued)
Environmental
Opera ng: -25°C to +65°C (op on for -40°C to +65°C)
Emergency: +71°C for 30 minutes
Storage: -40°C to +85°C
0 to 50,000
95% non condensing
2.45gRMS as per the following profile:
Mechanical Shock - OperaƟon
Mechanical Shock - crash
Bench Handling Shock
Rain
Dust
Salt Atmosphere
Bonding
EMI / RFI
MTBF
MTTR – O Level
BIT (Built In Test)
MIL-STD-810C/E, Method 516.2, Proc. 1 (30g / Half sine / 3 axis / 6 shocks per axis)
X-40G, Y-15G, Z-20G, 11ms, Half Sine, Total 12 shocks
MIL-STD-810F, Method 516.5, Procedure VI
MIL-STD-810E Method 506.3 procedure I
MIL-STD-810E Method 510.3
MIL-STD-810E, Method 509.3, Procedure I
≤2.5 mΩ
MIL-STD-461B/C Part: 5 (CE01, CE03, CE07, RE02, CS01, CS02, CS06, RS02, RS03)
Reliability, Maintainability, Testability
> 16,000 hours @ 30°C, ARW, MIL-HBK-217F (for C/A GPS receiver)
> 3,700 hours @ 30°C, ARW, MIL-HBK-217F (for P/Y GB-GRAM)
12 minutes to replace failed unit (including warm-up time)
On-line BIT – Automa c, Covers > 90% of all failures
Principles of Opera on
The following block diagrams depict the opera on of the AR51A-09. The unit includes Rubidium Standard and accepts Input from internal
GPS receiver, external 1PPS or external TOD (H.Q). All outputs are derived from the internal Rubidium Clock, which is phase locked by a
digital PLL to the selected input. Thus, the Rubidium Clock - frequency and me - follows the GPS on the long term average. If GPS recep on
is lost for short or long periods of me the Rubidium Clock shall maintain accurate me and frequency with no phase interrup on.
Data flow & Inputs Selec on
Rubidium-GPS DPLL and Inputs
Page 4 of 8
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