Model TPRO-PCI - Multi-function Timecode Reader/Generator
The TPRO-PCI performs timing and synchronization functions referenced to an input timecode signal.
The board synchronizes its on-board clock to the incoming timecode. The on-board clock’s time is also provided as an IRIG-B output. Other features include a time-tag TTL input, a programmable “heartbeat” pulse or squarewave output (with interrupt capability), and a programmable “match” start/stop time output (with interrupt capability).
The board continues to increment time (“freewheel”) in the absence of an input timecode. Thus, the board can be used as an IRIG-B timecode generator by setting the initial time via the PCI bus.
The input timecode format (IRIG-B, IRIG-A or NASA36) is automatically detected. Synchronization to the input timecode is also automatic and can be enabled/disabled via the bus. A propagation delay offset can be specified to compensate for cable delays.
The timecode input is an amplitude modulated sine wave. An automatic gain control (AGC) circuit permits a wide range of input amplitudes. The timecode input is differential; the board does not reference this signal to ground. A single-ended input (referenced to ground) is also acceptable. The board can be ordered with option “-M” to synchronize to a one-pulse-per-second (1 PPS) input instead of an incoming timecode. In this case, the initial time is programmed via the PCI bus, and the board begins counting on the next 1 PPS pulse.
Features
- IRIG-A, IRIG-B, NASA36 Timecode Reader
- IRIG-B Timecode Generator
- Time-Tag Input
- Programmable Periodic
- Output (pulse squarewave) and Interrupt
- Programmable Start/Stop Time Output and Interrupt
Downloads
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TPRO- PCI - datasheet, including full product specifications (71kb PDF)
TSAT PCI - Manual (586kb PDF)