Brandywine - FTSU-100D Advanced Frequency / Time Distribution Amplifier
- Network Enabled Distribution Amplifier
- Low Phase Noise Reference Frequency Outputs
- Fault Alarm Output
- 1U 19″ Rack Mount
- Frequency Synthesizer Option
- Hitless Switching of Reference
- Programmable Amplitude
- Propagation Delay Compensation
- 10 MHz Standard, Other Frequencies Available
The FTSU-100D is Brandywine’s advanced network enabled distribution amplifier. The FTSU-100D will accept 1PPS and a reference frequency such as 10MHz from two sources. A second frequency can be synthesized internally. 8 channels of the reference and synthesized frequency and 1PPS are generated. Input reference failure results in hitless switchover. The output frequencies have programmable amplitude and propagation delay compensation. Available in 1U 19” rack mount this unit has hitless switching and very low phase noise outputs.
The FTSU-100D is a high performance signal distribution amplifier designed for use with Brandywine high precision time and frequency sources. The FTSU-100D is contained in a compact IU rack-mount chassis. The FTSU accepts two sets of inputs, comprising the reference frequency (typically 10MHz) , 1PPS, and status from the source. The FTSU provides automatic changeover should one of the on-line source inputs fail. Manual source select override is available on the front panel, or from the Ethernet interface.
A variety of status indicators are located on the front panel for visual feedback, together with manual controls for source selection The reference frequency outputs are generated from a low phase noise ovenized quartz oscillator (OCXO) that is phase-locked to the reference frequency input. In the event of reference input failure the phase-locked oscillator will continue to provide referenced frequency outputs with a stability of 3X10-9 over temperature. Changeover between references is smooth with no glitch on the output.
A 10/100 baseT Ethernet interface provides full control over the functionality of the system, including reference reflection, output amplitude (on a per channel basis), 1PPS propagation delay (on a per channel basis). User control of the unit is via a built-in Web Browser with user-friendly graphical interface, or via SNMP for system applications.
Applications for the FTSU 100D include secure communications systems, satellite ground stations, digital television broadcasting and any system requiring highly reliable frequency, and pulse rate outputs.
Frequency Inputs
Frequency |
10MHz, +/- 5PPM, Other Frequencies Available Upon Request |
---|---|
Amplitude and Impedance |
0.5-1 Vrms. 1 Vrms nominal, 50 Ohms |
Isolation |
Transformer Coupled |
Number of Inputs |
2 |
Number of Inputs |
QMA connectors |
1PPS Input
1PPS |
2 |
---|---|
Input Amplitude |
1-6 Vpp |
Input Impedance |
50Ohms, nominal |
Number of Inputs |
2 |
Number of Inputs |
QMA |
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 10 MHz |
---|---|
Output Level |
+8 to +15dBm, short-circuit proof |
Number of Outputs |
8 |
Connector Type |
QMA |
Stability (without input) |
3x10-9, 0 to +60C |
Harmonic Distortion |
-30dBc |
Cross Talk |
-80dBc |
Spurious |
-80dBc |
Network Interface
Interface Type |
10/100 BaseT |
---|---|
Network Protocols |
HTTP, SNMPv1, FTP, DHCP |
Number of Inputs |
RJ45 |
Console Port
Interface Type |
RS232 |
---|---|
Parameters |
115200, N, 8, 1 |
Number of Inputs |
DB9 |
Pulse Outputs
Number of Outputs |
8 |
---|---|
Output Level |
0 V to +2.5 V into 50Ohms 0-5 V open circuit |
Pulse Width |
20 microseconds |
Protection |
Short-circuit proof |
Connector Type |
QMA |
Propagation Delay Compensation |
0-1 sec in 1ns steps |
Status Output
Type |
Dry relay form C contacts Ethernet |
---|---|
Alarm Function |
Summary of all input/output alarms (relay) Individual input and output (Ethernet) |
More Product Information

- Redundant design with multiple signal paths built in for high-availability.
- 12 expansion slots in the 2U version and 5 expansion slots in the 1U variant.
- Industry-first GPS integrity checking
- Unique optical crosslink architecture for either Master-Slave hierarchical setups or Master-Master crosschecking and failover
- 2U version is operated by an intuitive touch-screen interface, a first for any master clock system.
- All components are hot-swappable and are dual redundant.
- The Output Signal modules are hot-swappable from the front and minimize the need to disconnect cables.

- Single-slot 32 bit PCI Express module
- IRIG A, B, NASA 36, 1 PPS sync inputs
- HaveQuick sync input option
- Propagation delay correction
- Zero latency time reads
- Match Time status / interrupt
- IRIG-B time code output (option)
- External Event time tag
- User programmable heartbeat rate interrupt

- 6U single slot VME form factor
- Nine digit time display
- Optional Have Quick synchronization input
- IRIG’s A and B and NASA 36 time code inputs
- 1PPS sync input
- IRIG B output
- 1PPS and time code inputs are redundant
- Single-slot including GPS option
- Zero latency time reads, microseconds through years
- External Event input (optional eight and sixteen inputs)
- Match Time output
- Programmable Heartbeat rate
- Video Time Inserter Option
- Many additional options

- SOSA Aligned
- 3U VPX Form-Factor
- Reduced SWaP applications
- Ruggedization Level 200
- 11 Radial Clock Outputs
- OpenVPX Backplane support for 1000BASE-KX or 10GBASE-KR
- Optional Chip Scale Atomic Clock (CSAC) Holdover
- Optional Low Phase Noise (LPN) Analog output
- Optional secure GPS (M-code)
- Optional Timecode I/O

- 1U 19” rack mount
- Dual Redundant hot swappable Power Supplies
- Dual GPS Disciplined Modules

- Allan deviation σ(τ) = 2.7×10-11 T-1/2 for long life version and σ(τ) = 8.5×10-12 T-1/2 for high performance version
- Front or Rear access connectors
- 3U high (133mm / 5.24”) — less than 200mm depth, compatible with ETSI and 19” standards
- Accuracy better than ±1×10-12 / ±5×10-13 for high performance version
- 10 MHz low noise direct output
- Programmable 1 / 5 / 10 MHz TTL output
- 10 years warranty on cesium tube (3 years for high performance version)
- Redundant DC power supply inputs
- Remote control and monitoring via RS232 (fully manageable locally and remotely using SyncView Plus management system.

- Network Time Server
- Dual Redundant Version Available
- Complete Remote Network Control using Standard Web Browser
- SAASM/M-Code GPS Receiver
- 10MHz, 1PPS IRIG B, Serial and Time Codes
- Timing Accuracy 40ns rms to UTC
- 1PPS, Have Quick Inputs

- Wide Input Bandwidth
- Input Isolation
- Automatic & Manual Changeover
- Transformer Coupled Outputs
- Twenty four Outputs
- Front Panel Status Indicators
- Fault Discrete Inputs
- Compact 1U, 19” rack mount

- High performance GPS disciplined Time/Frequency standard
- Ethernet Interface for management and control
- Network Time Protocol (NTP)
- Multiple 1PPS outputs with individual delay compensation
- Multiple Low Phase Noise 10MHz outputs with software programmable level
- Time Code outputs including Have Quick, IRIG A, IRIG B, IRIG E, IRIG G
- Sync to GPS or to Have Quick/1PPS per ICD-GPS-060
- Choice of internal disciplined OCXO or Rubidium Oscillator

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. Our staff of dedicated professionals, based in Tustin, CA, represents over 100 years of collective experience in design, manufacturing and sales of precision time and frequency products. Many of our products are made here in the United States, which allows for quick turnarounds and custom design.
Products from Brandywine Communications range from components such as Oven Controlled Oscillators to complete timing systems like the top of the line High Performance Timing System (HPTS).
Several state-of-the-art time and frequency systems are available from Brandywine. The system product line includes single and dual-redundant models, GPS synchronization and a wide range of oscillator choices: TCXO, OCXO, high-stability OCXO and Rubidium types. GPS choices include both C/A code and SAASM models.
Brandywine also is the premier North American distributor of Oscilloquartz, a subsidiary of ADVA Optical Networking. Oscilloquartz is a premier synchronization supplier for telecommunications for wireline and wireless infrastructures throughout the world. This partnership creates a powerhouse of timing and telecommunications that expand Brandywine's services to their customers in the US and Canada.
We supply several major market segments including: Aerospace, US and Municipal governments, telecommunications, US military, power utilities, financial institutions, test ranges, automotive industry, healthcare and schools.
Brandywine Communications, Inc. is certified as a Small Business Organization with the United States Small Business Administration (SBA’s 8(a) Certification Program) and is registered on the System for Award Management (SAM.gov) website which makes us eligible for all awards or grants specified under this provision.
Contact Details
Brandywine Communications Inc. - Ultra-Precision Time & Frequency
2921 Daimler Street, Santa Ana, CA 92705, USA
Phone: +1-714-755-1050
Email: support@brandywinecomm.com
Embedded





