Applications for time-to-digital converters TDC - Cookbook
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Time to Digital Converter - TDC F1
This is now and obsolete part with limited availability
The TDC F1 time to digital converter is the ideal TDC to measure time of flight for medical and physics applications. A powerful member the Acam family, the F1 chip is a high performance 8-channel TDC. The Acam F1 offers 8 channles / 120 ps, or 4 channles /60 ps.
The
specialty of the TDC-F1 is a very complex trigger matching unit, that allows to suppress noise data and to
filter out signals related to a trigger signal directly on chip. The result is a data-stream of only valid data
and highest measurement rates up to 20MHz.
8 channels with 120 ps resolution (LSB) each, resolution identical for all channels, multihit
capability, double pulse resolution typ. 20ns.
combination for 4 measuring channels with 60 ps and multihit capability (High Resolution Mode)
combination for 32-channel hit mode with typ. 4.6ns resolution
Complex trigger-matching unit for on-chip data selection
Measurement range 5ns - 7.8 µs (65535 LSBs) with normal resolution (Start-Stop measurement)
Measurement range 5ns - 3.9 µs (65535 LSBs) in high resolution mode (Start-Stop measurement)
Time differences between hits on different channels down to zero
Resolution Adjust Mode: quartz-accurate, adjustable resolution ,insensitive to temperature variations,
adjustable via software (no calibration necessary)
Programmable edge sensitivities for all inputs: for time differences bigger than double pulse resolution
the pulse width can be measured directly using one channel (sensitive to rising and falling edges)
Disable input for each channel
Extremely fast data processing: depending on hit rate and data read-out unlimited multihit capability
can be achieved.
up to 7 results per channel can be stored
Reference clock range between 1 MHz and 40 MHz
compact 160 PQFP package (0.65 mm pitch)
Industrial operating temperature range: -40 ºC ... +85 ºC
Supply voltage: 2.7 V ... 5.5 V
Low current consumption
TDC F1 - Time to Digital Converter - Circuit Block Diagram
