|
|
TCC900
The TCC900 is a plug-in
computer card with PCI interface, which incorporates all the
electronic modules required for Time Correlated Single Photon
Counting (TCSPC). This includes constant fraction
discriminators, variable nanosecond delays, time to amplitude
converter and large memory for multi-channel analysis.
The TCC900 card transforms a historically complex and cumbersome
TCSPC set-up into no more than a pulsed light source, a detector
and a PC. All that is required to perform TCSPC measurements is
an optical trigger pulse from the excitation light source and
the raw detector output from a single photon counting detector
connected to the START and STOP inputs on the TCC900
respectively.
All the important operating parameters of the TCC900 are fully
computer controlled. This includes
discriminator
thresholds, zero
crossing levels, frequency dividers, shifting delays and time
offsets, time range and number of data channels, switch between
forward and reverse mode, stop conditions etc.
The performance achieved with the TCC900 card surpasses that
obtained using even the best conventional timing electronics.
The TCC900 has selectable TAC ranges from 2.5ns to 50μs, which
can be divided into 4096 (or 2048,1024, 512) data channels. This
corresponds to a minimum channel width of 610fs.
The low dead time between events allows measurements to be
converted at MHz rates. With high repetition rate laser sources
this means that high quality TCSPC measurements can be acquired
in seconds or even less.
The low timing jitter and excellent differential
non-linearity mean that the TCC900 imposes only a minimal
limitation to the shortest lifetime which can be measured.
In combination
with fs laser excitation and MCP-PMT detection the TCC900 can
measure lifetimes down to a few picoseconds.
The TCC900 can be supplied with full data acquisition and
analysis software, as in the Edinburgh Instruments range of
fluorescence lifetime spectrometers, or with a software
development kit for easy OEM integration.
The TCC card features:-
• PCI interface
• Time ranges from 2.5ns to 50µs full scale
• Time resolution from 610fs/ch
• Ultra-low time jitter < 25ps
• Forward and reverse modes
• Exceptional differential non-linearity
• Integrated shifting delays
• Comprehensive software for WINDOWS (TM)
• Extensive data analysis libraries
SPECIFICATIONS OF TCC900
START
and STOP Inputs
|
|
Type
Input Pulse Height
Threshold
Zero Crossing
Constant Fraction
Constant Fraction Delay
Frequency Divider
Input Connectors
Jitter |
Constant Fraction Discriminator
-10mV to –1000mV
0 to -500mV
-50mV to +50mV
0.3, fixed
Plug-in Delay
1, 2, 4, 8
SMA, 50Ω
<25ps (for pulses -50mV and greater) |
Data
Acquisition
|
|
Type
Modes of Operation
Full Time Range
Number of Channels
Minimum time per Channel
Shifting Delay
Dead Time
Maximum Counts per Time Channel Differential Non-linearity
of TAC & ADC |
Time to
Amplitude Converter (TAC) and 40MHz Flash Analogue Digital
Converter with Error Correction
Forward or Reverse
2.5ns to 50,000ns
512, 1024, 2048, 4096
610fs
0 to 200ns
400ns
232
<0.2% (RMS) over >90% of time range
(synchronization frequency to 1MHz)
<0.5% (RMS) over >90% of time range (synchronization
frequency to 80MHz) |
Computer Interface
|
|
Computer Interface
Dimensions
Power Requirements
Auxiliary Connector |
PCI, 32 bit, 33 MHz, Plug and Play
315 x 107 x 20 (mm)
3W @ +3.3V, 12W @ +5V, 6W @ +12V
26 way high density, ±5V, ±12V |
Software
|
|
Applications
DLL
Operating System |
F900, T900
Software Development Kit
WINDOWS 95, 98, 2000, XP, NT |
|
 Datasheet (40kb) |
|
