The FTSU-100 is a high performance signal distribution amplifier designed for use with the Brandywine model PTS Precision Time System.  Available in 1U and 2U sizes, both versions have hitless switching and very low phase noise outputs.


  • Frequency and time outputs
  • Low phase noise frequency output
  • 1PPS output
  • Hitless fequency switching

Product Specifications
Product Data Sheet
User Manual

Frequency Inputs        
Frequency 5 or 10 MHz, +/- 5PPM          
Amplitude & Impedance 0.5-1Vrms. 1Vrms nominal, 50 Ohms          
Isolation Transformer coupled          
Number of Inputs 2, SMA connectors          
Pulse Inputs Option        
1PPS 2          
Amplitude 1-6 Vpp          
Input Impedance 5k Ohms, nominal          
Number of Inputs 2          
Connector type SMA          
Fault Inputs          
Number of Inputs 2          
Signal Type TTL          
Active Level Link selectable for active high or low          
Action Forces on-line changeover when active          
Reference Frequency Outputs          
Frequency Same as input, 5MHz or 10MHz          
Output Level +13 dBm, +/- 2dBm, short-circuit proof          
Number of Outputs Up to eight          
Connector Type SMA          
Stability, without input 3X10-9, 0 to +60C          
Harmonic Distortion -30 dBc          
Cross Talk -60 dBc          
Spurious -80 dBc          
Phase Noise See Table 1          
Synthesizer Derived from osc locked to reference        
Number of Outputs Up to five          
Frequencies 5 MHz, 10 MHz or 64.8 MHz          
Output Characteristics Same as for Reference Frequency          
Number of Outputs Up to four. Link selectable between        
Reference Frequency and Synthesizer            
Output Characteristcs Same as for Reference Frequency          
Time Code Out          
  Amplitude 2 +/- .25 Vpp into 50 Ohms        
Protection Short-circuit proof        
Number of outputs Up to eight        
Connector SMA        
Pulse Outputs  
Number of outputs Five    
Output level 0 V to +4.5, +/- .5V into 50 Ohms    
Pulse width 20 microseconds    
Protection Short-circuit proof    
Connector SMA    
Status Output (Alarm)    
Type Dry relay form C contacts    
Link options      
Alarm function Summary of all input/output alarms    

alt FTSU-100 Data Sheet

alt FTSU-100 User Manual



About Brandywine Communications

Brandywine Communications Inc. offers superior products to the time and frequency marketplace. Our mission is to provide the finest equipment coupled with excellent before and after sale service.

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Contact Us

Brandywine Communications
Ultra-Precision Time & Frequency

1153 Warner Ave
Tustin, CA 92780
Phone: 714.755.1050