Brandywine - XMC SyncClock32 Advanced Switch Mezzanine Card Timing Module
- IRIG A & B, NASA 36 and 1 PPS inputs standard
- HaveQuick sync option
- Propagation delay compensation
- Zero latency time reads
- Match Time output
- IRIG B time code output
- External Event time tags
- On-board GPS receiver option
- User programmable heartbeat rate
The XMC-SyncClock32 from Brandywine Communications is an advanced switched Mezzanine Card (XMC) module. Precision time is provided to the host computer with zero latency. The on-board microprocessor automatically synchronizes the clock to reference signal inputs. The reference signal inputs handled by the XMC in its standard configuration are IRIG’s A and B, NASA 36 and 1 PPS. Alternatively, the clock in the XMC can be set using commands from host computer and free run using its on-board oscillator as the time base.
When synchronizing to time codes or 1 PPS the micro-processor constantly measures the time error between the on-board clock and the reference input code and adjusts the error measurement for propagation delay. When the disciplined TCXO option is selected the residual error is used in an adap-tive gain loop to adjust the frequency of the 10 MHz oscillator for minimum error. Before being used as the time reference, the input code reference is checked (to code carrier resolution) for consistency with itself. If the incoming code is missing or corrupted by noise the on-board clock is updated by the 10 MHz oscillator. When the input code is again useable the cor-rection loop is smoothly closed.
58 bits of BCD time are available to the host computer using two zero latency time reads. The time message contains units of microseconds through units of years. A status word is avail-able using an additional read.
The time-of-occurrence of external events may be captured (time-tagged) by using the Event Time input. When the event input is sensed the current time is saved in a buffer for later interrogation by the host. The resolution of the time tag is 100 nanoseconds.
The Match Time feature may be used to automatically initiate or terminate an external process. The resolution of the Match Time comparison is one microsecond. The Match Time out-put is asserted when the time of the internal clock matches that of the user input start time. The Match Time output may be terminated by a user command or when the previously set stop time is encountered.
One user programmable heartbeat rate is provided. The heartbeat pulse rate provides heartbeat timing to the host computer and is also available on the multi-pin connector.
The GPS synchronization option offers worldwide time transfer capability to the XMC-SyncClock32. Very precise synchronization, automatic leap year and leap second correction, plus accurate position information are additional benefits provided by the GPS option.
General Input Specifications
|
Input Signals |
IRIG A & B, NASA 36 |
|---|---|
|
Input Amplitude |
.25 to 10 Vpp |
|
Input Impedance |
>10k Ω |
|
Ratio |
2:1 to 4:1 |
|
Frequency Error |
100 PPM maximum |
|
Code Sync Accuracy |
One microsecond |
|
1PPS Input |
RS-422 or TTL, positive edge |
|
1PPS Sync Accuracy |
300 nanoseconds |
|
External Event Resolution |
100 nanoseconds–units year |
|
Minimum Event Spacing |
None |
General Output Specifications
|
IRIG B DC Shift |
TTL |
|---|---|
|
Match Pulse Resolution |
TTL level at Start–Stop time Microseconds–eight millisecond |
|
Heartbeat Rate |
Interrupt, flag, TTL, negative going |
|
Clock Divisor |
2–65,535 |
|
Clock Input |
1 MPPS |
|
Default Output |
1 kPPS |
|
BDC Time |
Microseconds–unit year on demand, zero latency 58 bits in two 32 bit words |
|
Status Word |
8 bits |
|
Status Indicator LED's |
Flashes Coded Patterns |
|
Interrupts |
External Event, RAM FIFO, Heartbeat, Match Time |
|
Flags |
Dual Port RAM data ready, FIFO data ready, In sync, Heartbeat, Match Time, External Event |
|
Connectors |
SMB, high density IEEE–1284 |
|
Mean Time Between Failures |
141,000 hours per Mil-217-F, Notice 2, 25° C, ground benign |
Physical
|
Dimensions |
74mm X 1437.5mm single CMC |
|---|---|
|
Type |
PCIe endpoint |
|
Power Consumption |
+5 Vdc: ±5%,150 mA maximum +12 Vdc: ±5%, 60 mA maximum -12 Vdc: ±5%, 25 mA maximum |
Environmental
|
Temperature |
|
|---|---|
|
Operating |
0°C to +70°C |
|
Non-Operating |
-40°C to +85°C |
|
Humidity |
To 95% without condensation |
Options
|
GPS Sync Input (External) |
C/A code |
|---|---|
|
GPS Sync Accuracy |
100 nanoseconds |
|
Position Accuracy |
25 meters SEP |
|
Tracking Satellites |
Twelve parallel channels |
|
Antenna |
L1, 25' cable |
|
Antenna Options |
Hi-gain: L1, mast mount, 100' cable |
|
Input Code Isolation |
Transformer coupling |
|
Input Codes |
IRIG G, XR3, 2137, IRIG E, 109-60 |
|
Output Codes (DSLS) |
IRIG A, NASA 36, IRIG G |
|
External Event Inputs |
8x TTL, Positive or Negative Edge |
|
Have Quick Input |
Per ICD–GPS–060 |
|
Have Quick Output |
Per ICD–GPS–060 |
|
Binary Time Words |
Replaces BCD |
|
Oscillator Upgrades |
Disciplined TCXO, 1 PPM |
|
F1PPS 10 Vdc Input |
Sync input, +10 Vdc, 50 Ohms |
More Product Information
- Digital Clock Automatically Synchronizes with NTP servers over Ethernet Network
- 0.5”, 3.2” or 5” display sizes
- Remote network management
- Time Zone and Daylight Savings support
- Multiple colors
- Optional Network Time Server version with built-in GPS receiver
- Optional built-in IRIG B time code reader
- 3 isolated low phase noise 10MHz outputs
- Internal GPS Tracking Receiver
- External 1 PPS input
- Small footprint designed for easy integration
- Disciplined high stability OCXO
- 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
- Single-slot 32 bit PCI Express module
- IRIG A, B, NASA 36, 1 PPS sync inputs
- GPS sync option (maintains single-slot)
- HaveQuick sync input option
- Propagation delay correction
- Zero latency time reads
- Match Time output
- IRIG-B time code output (option)
- External Event time tags
- Three user programmable rates
- Supports Windows 8 & 10
- Digitally Signed WHQL Driver
- IRIG A & B, NASA 36 and 1 PPS inputs standard
- HaveQuick sync option
- Propagation delay compensation
- Zero latency time reads
- Match Time output
- IRIG B time code output
- External Event time tags
- On-board GPS receiver option
- Three user programmable rates
- Conduction Cooled Version
- IRIG A & B, NASA 36 and 1 PPS inputs
- HaveQuick sync option
- Propagation delay compensation
- Zero latency time reads
- Match time output
- External event time tags
- Three user programmable rates
- Conduction cooled
Brandywine Communication’s Have Quick/1PPS Distribution Amplifier (HQS) is a small rugged, powered Have Quick/1PPS distribution module mounted in a 4” x 4” x 2.5” environmentally secure enclosure. The HQS can provide an MTBF up to 1 million hours depending on configuration.
- 6U, Single Width VME
- Time Code Inputs
- Time Code Output
- 1PPS Pulse Rate Output/Interrupt
- Frequency Outputs (1, 5, 10 MHz)
- External Event Capture/Interrupt
- Programmable Periodic Output/Interrupt
- Programmable Time Strobe Output/Interrupt
- 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
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
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