AOG-110Auxiliary Output
Generator
AOG-110
Auxiliary Output Generator
Symmetricom’s Auxiliary Output Generator ™,designated the AOG-110,solves performance and capability issues associated with the u of high stability frequency standards.Until now,intermediate offt generators that extended a standard’s frequency range without a performance sacrifice were difficult or impractical to obtain.Now,the AOG-110is available with a 5MHz output,program-mable over a broad frequency range with extremely high resolution and preci pha control at an economical price.
The 5MHz output,available on three buffer-isolated output ports,features a high
performance crystal oscillator pha-locked to the external standard’s output reference and employs heterodyne techniques devel-oped for Symmetricom’s Atomic Hydrogen Mar .Internally,the 5MHz is ud to develop
one pul per cond (1PPS)which is avail-able as an output.The 1PPS output can be synchronized to an external 1PPS reference by the AOG’s operator controls.
The output frequency is controlled by directly offtting a pha accumulator
(synthesizer)in the PLL chain.The maximum synthesized fractional frequency range is ±1E-7,with a fractional resolution of 1E-19.By altering the frequency output over a pre-ci time interval,output pha control is achieved.Typically,the ur defines the desired pha offt and time interval within which the offt is made.Once t,the AOG-110automatically implements the appropriate frequency offt and preci time interval.Direct control over both frequency and time interval is available.
KEY FEATURES
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5MHz Low Pha Noi Outputs •
Output Pha Offt Programmable to 1Picocond
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Output Frequency Programmable to 1.0E-19Fractionally Over 5.0E-8Range •
Temperature Control Insures Thermal Stability
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RF Subsystem Developed from Hydrogen Mar Technology •
Second Generation Microprocessor Control
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Digital Pha and Frequency
Control Menu Driven Interface with Keypad Access
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LCD Display Provides Easy Access to Configuration and Performance Information
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Full System Control via RS-232Compatible Interface
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Password Protected Remote Operation Provides Security •
生蚝怎么蒸好吃Absolute and Relative Frequency Control
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Dual-Mode,Timed Frequency Control Allows Interval Frequency and Final Frequency Settings
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Output Relative Pha Control Over Ur Defined Intervals
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Suspend And Resume Available on Programmed Intervals
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Real-Time Clock Set and
Adjust
©2007Symmetricom.Symmetricom and the Symmetricom logo are registered trademarks of Symmetricom,Inc.All specifications subject to change without notice.
DS/AOG110/D/1009/PDF
SYMMETRICOM,INC.
2300Orchard Parkway San Jo,California 95131-1017
tel:408.433.0910fax:408.428.7896
info @
The AOG-110is ud by calibration laboratories,engineering facilities and metrology laboratories with high stability frequency standards such as Mars to generate high quality RF sine wave signal offts without sacrificing performance.
Typical AOG performance when input is from MHM 2010
AOG-110SPECIFICATIONS
PERFORMANCE
•One cond stability better than 3.0E-13•Approximate 1/t stability from one cond •Pha noi:<3dB over Mar •Three 5MHz outputs:+13dBm into 50Ω•VCXO range:>1.0E-6•Output isolation:>80dB
•5MHz input range:+6dBm to +15dBm
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Temperature nsitivity:<10picocond per degree C
TIMING OUTPUT
•Format:1PPS (positive going pul)•Amplitude:>3V into 50Ω(TTL compatible)•Pulwidth:20µs •Ri time:<5ns •
Jitter:<1ns RMS下载mv
TIMING INPUT •Sync input:1PPS
•Amplitude:>3V into 50Ω(TTL compatible)•Pulwidth:≥20µs •Ri time:<5ns •Jitter:<1ns RMS
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Synchronization input to output:<15ns
The frequency,pha and 1PPS syn-chronization of the AOG are independently controlled through a menu-driven interface on the front panel.The interface also provides operational status information.The local interface consists of an LCD display,a real-time clock display,and a 16-key keypad coupled to a microprocessor .An RS-232rial port is available for remote operation.Generally the operator us either exclusive local control or exclusive remote control.Shared control between local and remote interface is available.Remote control supports password protection that requires entry of a code before the u of local controls is possible.Numerous other options include:baud rate,parity and data format;unit identification number;ttable VCO pha-locked loop (PLL)bandwidth and real time clock format.Storage of thes
e options in a nonvolatile memory prevents loss due to power failure or removal.The AOG-110remote command t includes 11commands for frequency,pha control,curity control,status,on-line help and 1PPS synchronization control.All commands are pard for correct syntax and operational range prior to execution.Commands that con-tain errors are rejected and reported to the remote console without affecting the 5MHz output.锻炼身体英文
POWER REQUIREMENTS
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驼鸟Universal supply:85-265VAC,47-440Hz •Secondary DC input:18-30Vdc
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20Watt operational power,40Watt start-up DIMENSIONS狂躁抑郁症
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7.0”x 16.75”x 21.0”rack-mount chassis (17.78cm x 42.54cm x 53.34cm)•
Weight:approximately 40lbsPUTER INTERFACE
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RS-232compatible control port
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Supports 1200,2400,4800,9600and 19200baud rates
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Remote lockout mode requires password for keypad control
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All frequency,pha and clock controls available remotely
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Operational data and identification available remotely
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A l l a n D e v i a t i o n σy (τ)
Fr e qu en c y S ta b ilit y
AOG Noi Floor
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