DDG-200 Digital Pulse / Delay Generator - Becker & Hickl

DDG-200 Preliminary Manual Version A8Simplified Block Diagram of a Signal Generator100 MHzMem AdrCounterMemory64 x 54PulseFFTimeStartComparatorStopComparatorFine Offset8 TapDelayLineSignalConnector LayoutSignal 6Signal 5Signal 4Signal 3Signal 2Signal 1Start invertedStartH. Hickl 2003-05-11 page 3 of 6

DDG-200 Preliminary Manual Version A8SpecificationMax. Cycle Time42.94967295 sMin. Pulse width (all Outputs)10 nsMax. Pulse width (Start)42.94967294 sMax. Pulse width (Signal)5.24288 msMax. no. of pulses per signal and cycle 64Max. no. of cycles4,095 or endlessTime resolution of nominal Pulse Position10 nsTime resolution of Pulse Fine Offset1/8 of 10 nsOutput high level+5V (no load); +2,5 V (50 Ωload)Output low level0VOutput impedance50 ΩOutput connector typeMCXHardware InstallationTo install the device, switch off the computer and insert the DDG-200 module into a freeslot. To avoid damage due to electrostatic discharge we recommend to touch the moduleat the metallic back shield. Then touch a metallic part of the computer with the otherhand. Then insert the module into a free slot of the computer. Keep the DDG module asfar as possible apart from loose cables or other computer modules to avoid noise pickup.Windows has a list of hardware components, and on the start of the operating system, itautomatically assigns the required hardware resources to the components of this list. Ifyou have several DDG-200 modules in the computer each module gets its own addressrange.When the computer is started the first time with the DDG-200 Windows detects the DDGmodule and attempts to update the list of hardware components. Therefore it may askfor driver information from a disk. In case of Windows 98 / NT / 2000 / XP the driver"bh.inf" from the root directory of the installation CD-ROM will be found automatically.In case of Windows 95 the driver from the "Windows95_driver" directory should be used.Software InstallationThe DDG-200 modules come with the ‘DDG Standard Software’ which controls allhardware and software parameters of the module. Up to 4 DDG-200 modules in onecomputer can be operated by one DDG application.The DDG-200 Standard Software runs under Windows 95, 98, 2000, NT and XP. Tofacilitate the development of user-specific software a DLL library is available.H. Hickl 2003-05-11 page 4 of 6

DDG-200 Preliminary Manual Version A8Becker & Hickl GmbH Tel. +49 / 30 787 56 32 email: info@becker-hickl.comNahmitzer Damm 30 FAX +49 / 30 787 57 34 www.becker-hickl.com12277 Berlin, GermanyH. Hickl 2003-05-11 page 6 of 6