User`s Manual
Contents
1. 3200MHz SMA J Differential 100 Q LVDS Caution 1 5MHz 3200MHz SMA J Differential 100 Q PECL Caution 1 Caution 2 Switchable by 3V and 5V Caution 1 Other than specified 10dBm frequencies and output levels may cause unstable operation of the LVDS PECL and CMOS output sections Caution 2 The PECL level output sections are DC cut when factory shipped 8 Contents of package 1 FIX 3 2GX body x1 2 Coaxial cable x1 3 RS232C connection cable x1 4 Power supply cable to DPL 3 2GXF x1 5 User s manual this book x1 6 Screw M2 X 5 sems x4 7 Stud M2 X5 male female x4 4 Connection with DPL 3 2GXF The following cables are attached to the optional board If you have purchased the FIX 3 2GXF separately connect them by following the procedures 1 Power cable 2 SMA connector double ended coaxial cable 3 RS 232C cable Connect the cables as shown in the photograph below f al Main body power supply connector 5V to 7V Coaxial connected conversion 5 Functions 1 Frequency setting 2 Amplitude setting 3 RF output ON OFF 4 Saving of frequency and amplitude 5 Switching of reference signal internal external 6 Fine adjustment of internal reference signal 7 Level conversion of CMOS PECL and LVDS 6 Names and functions of keys and switches Teele ofl Hz AUTO NORMAL MODE ON OFF key i are U FUNC MODE RF ON OFF Setting knob Sa Setti2. the ENTRY position Push the setting knob and you will go return to the currently output set value 8 Various settings Set the mode switch to FUNC MODE Select the desired setting menu by turning the setting knob 1 Saving of frequency and amplitude The current frequency and amplitude are saved Execute saving with the ON OFF key When saving ends DONE is displayed Do not turn off the power until this display appears 2 Switching of reference signal source Set the setting menu to CLOCK SOURCE by turning the setting knob x Selection mark INT indicates internal reference signal and EXT indicates external reference signal Set the selection mark to the desired signal by pushing the cursor key s and determine it by pushing the ON OFF key The determined reference signal source is automatically saved The current reference signal source can be confirmed in NORMAL MODE Reference signal source INT internal signal EXT external signal 3 Power on RF ON OFF setting Set whether to turn ON or OFF the RF output at power on Caution 3 Set the setting menu to POWER ON RF OUT by turning the setting knob Selection mark 6699 Set the selection mark to the desired side by pushing the cursor key s and determine it by pushing the ON OFF key The determined setting is automatically saved Caution 3 Keep in mind that the cur
3. User s Manual Model FIX 3 2GX Control Board History rev1 0 2010 08 30 first edition issued DIGITAL SIGNAL TECHNOLOGY INC 1 7 30 Higashi Benzai Asaka Saitama 351 0022 Japan TEL 81 48 468 6094 FAX 81 48 468 6210 URL http www dst co jp en 1 Outline The FIX 3 2GX is an optional board to set the DDS PLL synthesizer DPL 3 2GXF Since it can be mounted over the DPL 3 2GXF a signal generator included with a compact controller can be formed The LCD and encoder on the board enable making of various settings such as frequency amplitude and RF ON OFF Also the board is equipped with level converters for CMOS differential PECL and differential LVDS which are convenient as a logic circuit clock source FUNC MODE T RF ALATI os ae ORME caos e 2 Specifications 1 Power supply voltage 2 Consumption current FIX 3 2GX alone When connected with DPL 3 2GXF 3 Level converter input level 5 3200MHz 4 CMOS level converter Operating frequency range Output connector Load impedance Output level 5 LVDS level converter Operating frequency range Output connector Load impedance Output level 6 PECL level converter Operating frequency range Output connector Load impedance Output level 5V 7V 400mA or less 1900mA or less Output of DPL 3 2GX is set at 10dBm 5MHz 100MHz BNC 500 load drive possible CMOS Caution 1 Switchable by 3V and 5V 5MHz
4. g menu to PHASE OFFSET by turning the setting knob Cursor At entry into the setting mode the cursor appears under the phase offset value Set the desired phase offset value with the cursor keys and setting knob The reflected set value is as is the case with the setting of the frequency and amplitude In the case of AUTO mode the output changes continuously according to the turning of the setting knob In the case of ENTRY mode set the setting mode switch to SET 10 After setting exit the setting mode by pushing the ON OFF key At completion of the setting mode the cursor disappears Caution 5 Use of the phase offset function by the internal clock is irrelevant because of synchronization with the internal clock 9 Modification of PECL output In the case where DC components are needed short circuit each DC cut capacitor by referring to the photograph below Remove the capacitors Short circuit with 1608 PECL output sections VI type 0Q ete 11 10 Precautions for handling Use a lower rippling power supply When using a switching power supply use an appropriate noise filter This product is DPL 3 2GXF specific Keep in mind that it cannot be used with DPL 3 2GF Descriptions in this manual are subject to change without notice No part of this manual may be reproduced without our
5. ng mode switch Cursor keys 1 Cursor keys Move the cursor to the desired frequency and amplitude with the cursor keys Select the desired item 2 Setting knob Set a numerical value for frequency amplitude and phase offset Select the desired menu 3 Mode switch Select NORMAL MODE or FUNCTION MODE 4 Setting mode switch Select a frequency and amplitude setting mode AUTO ENTRY or SET 5 ON OFF key Switch ON OFF of the RF output Use to determine a function 7 How to set frequency and amplitude Set the mode switch to NORMAL MODE 1 AUTO mode Set the setting mode switch to AUTO Move the cursor to the desired frequency and amplitude with the cursor keys Set a numerical value by turning the setting knob The frequency and amplitude are reflected in the output at the same time as the setting That is the output changes continuously according to the turning of the setting knob 2 ENTRY mode Set the setting mode switch to ENTRY Move the cursor to the desired frequency and amplitude with the cursor keys Set a numerical value by turning the setting knob The set value is not reflected in the output while the frequency and amplitude are being set For reflecting in the output after completion of setting of the frequency and amplitude set the setting mode switch to SET The lever is not fixed at the SET position but self returns to
6. permission We shall assume no liability for any user damage as a result of an accident etc Descriptions in this manual shall not guarantee the practice of industrial property and other rights or grant a license for them We shall assume no liability for any third party s industrial property rights attributable to the use of circuits etc described in this manual Digital Signal Technology Inc 12
7. rent RF output is not turned ON OFF by this function 4 Fine adjustment of internal reference signal Make fine adjustment of the frequency of the internal reference signal 10MHz Set the setting menu to INT CLOCK ADJUST by turning the setting knob and push the ON OFF key affi ejtjo e k a p yju sjt Since the frequency increases decreases according to the cursor keys make adjustment while checking with the frequency counter etc By pushing the ON OFF key the setting is reflected and automatically saved 5 External clock synchronizing function ON OFF setting Set whether to turn ON or OFF the external clock synchronizing function Caution 4 Set the setting menu to CLOCK SYNCHRO by turning the setting knob Selection mark Set the selection mark to the desired side by pushing the cursor key s and determine it by pushing the ON OFF key The determined setting is automatically saved The current state of the synchronizing function can be confirmed in NORMAL MODE _ _ 1 0 0 0 0 o 0 o o o fofofo oN iinit fejs 1 4 5 08m External clock synchronizing function No display OFF CS ON Caution 4 The synchronizing function is also enabled by turning it ON with the internal clock but this is irrelevant because of synchronization with the internal clock 6 Phase offset setting Set the phase offset with the external clock Caution 5 Set the settin
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