Detector System Component Description
42
present CCD array cleaning cycle. For time based operation, this output remains active
until all spectra have been taken and then returns to its inactive state.
EXT TRIGGER READY
The EXT TRIGGER READY signal is applicable to the detection system’s External
Trigger mode of operation and is used to indicate when the system has completed the
current spectral acquisition (i.e. exposure and readout) and is ready to begin subsequent
acquisitions
Auxiliary Analog Port
The Auxiliary Analog Input port is used for accommodating either a current or voltage
single channel detector. This external interface utilizes an SMA connector and can be
used as an independent data acquisition channel or as a reference channel to correct CCD
acquisitions for power fluctuations in an excitation source.
From a system’s perspective, the AUX IN port is software programmable to operate in
either a voltage or current mode and correspondingly accepts signals from up to +/- 10 V
in Voltage mode or up to +/- 10 µA in Current mode. In addition, this independent analog
channel incorporates programmable gain capability (1/10/100/1000) to adjust for signal
sensitivity as required.
External
I
2
C
An external Inter-Integrated Circuit (I
2
C) bus interface is provided to allow Synapse to
communicate with end-user specific, slave I
2
C devices when required. This two-wire,
synchronous, serial interface supports bi-directional data transfers up to 100 kbits/sec in
standard mode and 400 kbits/sec in fast mode.
In terms of an end-user’s experimental setup, this two-wire serial interface can be used to
control: (a) stepper motors associated with the end-user’s optics (i.e. filter wheel), (b)
serial digital-to-analog (DAC) converters that vary control voltages associated with light
source intensities and / or (c) serial E
2
PROMs that store pertinent system configuration
data.
Additionally, this interface provides fused +5 V or +3.3 V DC power (factory default
setting at +5 V DC) for instances where customer specific slave I
2
C devices require bias
power as well (Fuse rating = 200 mA max). Figure 12 specifies pin-out definition for this
detector system function. It should be noted that utilization of this communication
interface is only supported thru the use of HORIBA Jobin Yvon’s Software Develop-
ment Kit (SDK).
Note
: The output signal can also be configured, via
software, for a specific polarity where the active
state can be either a logic high (5V) or logic low
(0V) to meet the needs of the experiment. Refer
to Appendix C for additional information
regarding enabling/configuring these TTL level
I/O signals.
Summary of Contents for JOBIN YVON SYNAPSE
Page 1: ...SYNAPSE CCD Detection System User Manual Part Number 81100 Revision 2...
Page 10: ...Preface x...
Page 14: ...System Description and Specifications 4...
Page 28: ...Detector System Installation 18...
Page 38: ...Initial Power up and Operation 28...
Page 48: ...Temperature Control 38...
Page 72: ...Appendix A Dimensional Drawings 62 Figure 17 Distance from Focal Plane to CCD Chip...
Page 73: ...Appendix A Dimensional Drawings 63 Figure 18 Synapse Power Supply Unit...
Page 74: ...Appendix A Dimensional Drawings 64...
Page 86: ...Appendix C Performing Routine Procedures with SynerJY 76...
Page 100: ...Appendix E Accessories 90...
Page 104: ...Warranty 94...
Page 113: ...103 Notes...
Page 114: ...104 Notes...