Manuale d’uso / di manutenzione del prodotto MP1763C del fabbricante Anritsu
Vai alla pagina of 78
Document No.: M-W1848AE-9.0 ANRITSU CORPORA TION MP1763C Pulse Pattern Generator Operation Manual (Function/Operation) For safety and warning information, please read this manual before attempting to use the equipment. Keep this manual with the equipment.
ii Safety Symbols T o prevent the risk of personal injury or loss related to equ ipment malfunction, Anritsu Co rporation uses the following safety symbols to indicate safety-rela ted information. Ensure that you cl early understand the meanings of the symbols BEFORE using the equipment.
For Safety iii WARNING 1. ALWAYS refer to the operation manual when working near locations at which the alert mark shown on t he left is attached. If the advice in the operation manual i s not followed there is a risk of personal injury or reduced equip ment performance.
For Safety iv WARNING 4. This equipmen t cannot be repaired by the opera tor. DO NOT attempt to remove the equipment covers or unit covers or to disassemble internal components. Only qualified service personnel with a knowledge of electrical fire and shock hazards should service this equipment.
For Safety v CAUTION 1. Always remove the mains power cable from the powe r outlet before replacing blown fuse s. There is a risk of electric shock if fuses are replaced with the power cable connected. Always use new fuses of the type and rating specified on the rear panel of the instrument.
For Safety vi CAUTION This equipment uses a Poly-carbomonofluo ride lithium battery to backup the memory. This battery mus t be replaced by service personnel when it has reached the end of its useful lif e; contact the Anritsu sales section or your nearest representative.
vii Equipment Certificate Anritsu Corporation certifies that this equipment was tested before shipment using calibrated measur ing instruments with direct traceab ility to public testing organizations.
viii Notes On Export Management This product and it s manuals may requi re an Export Lice nse/Approval by the Government of the product's country of origi n for re-export from you r country . Before re-exporting the product or ma nuals, please cont act us to confirm whether they are export -controlled items or n ot.
ix Crossed-out Wheeled Bin Symbol Equipment mark ed with the Crossed -out Wheeled Bin Sym bol complies with council direct ive 2002/96/EC (the “WEEE Dir ective”) in E uropean Union.
x CE Conformity Marking Anritsu affixes the CE Conformity marking on the following product(s) in accordance with the Cou ncil Directiv e 93/68/EEC to indicat e that they conform to the EM C and LVD directiv e of the European Un ion (EU). CE marking 1.
xi C-tick Conformity Marking Anritsu affixes the C-tick marking on th e following product(s) in accordance with the regulation to indica te that they c onform to the EMC framework of Austral ia/New Zealan d. C-tick marking 1. Product Model Model: MP1763C Pulse Pattern Generator 2.
xii Power Line Fuse Protection For safety, Anritsu pr oducts have eith er one or two fuses in the AC power lines as requested b y the customer when ord ering. Single fuse: A fuse is inserted in one of the AC power lines. Double fuse: A fuse is inserted in each of the A C power lines.
I Composition of MP1763C Operation Manuals The MP1763C Pulse Pattern Generator operation manuals are composed of the follow- ing two documents. Use them properly according to the usage purpose.
II Title of Contents For Safety ..................................................................................................................... .. iii SECTION 1 GENERAL ............................................................................
III 4.4.1 File save ........................................................................................................... 4- 23 4.4.2 File recall ...................................................................................................
IV ..
1-1 SECTION 1 GENERAL 1.1 Features The MP1763C Pulse Pattern Generator has two data output channels (DATA and DATA) and three clock output channels (CLOCK1, CLOCK1, CLOCK2). The MP1763C is used with the MP1764A/C Error Detector to test high-speed digital communication systems and high-speed semiconductors.
1-2 Section 1 GENERAL 1.2 Specifications Operation frequency range Internal Clock (OPTION 01) 0.05 to 12.5 GHz Pattern generation PRBS Continuous 0 pattern can be inserted up to pattern length -1.
1-3 1.2 Specifications CLOCK1/CLOCK1, CLOCK2 3 systems Error insertion Error ratio 1 × 10 (n = 4 , 5, 6, 7 , 8 , 9) Insertion position Insertion possible at any one of 32 channels (Rear panel swith) .
1-4 Section 1 GENERAL 20 ps or less (p-p) 15 % or less, or 150 mV or less, whichever is larger. (0-peak) 50 Ω (with back termination) APC-3.5 NRZ DATA, DATA 2 systems independence 0.25 to 2.0 Vp-p/Step 2 mV Setting error: ± 15 % or ± 100 mV, whichever is larger –2.
1-5 1.2 Specifications 1/8 output 8 data outputs, 1 clock output 300 ps or less (20-80 %) 100 ps or less (p-p) Waveform distortion 15 % or less Skew 150 ps or less (relative to falling edge of 1/8 clo.
1-6 Section 1 GENERAL Error Disable input Error ON/OFF controlled by external input signal Error rate can be selected over this range Input level 0/-1 V 50 Ω External Gating input Output data control by external signal Data output Input level 50 Ω Parameter memory Medium 3.
1-7 1.2 Specifications Option-01 Name Internal synthesizer Frequency range 0.05 to 12.5 GHz Output level 0.5 to 2.3 Vp-p Resolution 1 kHz/1 MHz (switchable) Frequency accuracy 1ppm ( ∗ When synchronized with external signal, accuracy is determined by external signal.
1-8 Section 1 GENERAL 1.3 Composition The standard composition of the MP1763C Pulse Pattern Generator is shown in Table 1.3-1. Table 1.3-1 MP1763C Standard Composition Item No.
2-1 SECTION 2 PREPARATIONS 2.1 Environmental Conditions of Installation Site Do not use and store the instrument in the following locations: • where vibrations are severe. • where it is damp or dusty. • where there is exposure to direct sunlight.
2-2 Section 2 PREPARATIONS 2.3 Power Connection This section describes the procedures for supplying power. 2.3.1 Power Requirements For normal operation of the instrument, observe the power voltage range described below. Voltage range Frequency 85 to 132 V 47.
2-3 2.4 Damage Prevention Measures • Do not apply an excessive voltage when inputting the signal to this instrument. The circuits may be destroyed. • Terminate the output with 50 Ω . Do not feed current to the output. The load must be a 50 Ω pure resistor terminated at ground potential.
2-4 Section 2 PREPARATIONS ..
3-1 SECTION 3 DESCRIPTION OF PANELS AND CONNECTORS.
N N SINGLE DISPLAY ! PULSE PATTERN GENERATOR MP1763C 0.05 - 12.5GHz INTERNAL CLOCK (OPTION.01) PATTERN MEMORY TUNING RESOLUTION FREQUENCY MHz kMz OUTPUT EXIST DIR FILE No. RECALL DELETE SAVE RESAVE SHIFT PATT OTHERS MODE LOGIC PATTERN PRBS / ZERO SUBST PRBS MARK RATIO 2 - 1 2 POS NEG ALTNDATA Z.
3-3 3.1 FRONT PANEL 1 2 3 4 5 Power switch When , the powe r is turned on and the LED goes on. When , the power is turned off. LOCAL key Switches from the GPIB REMOTE mode (LED lit) to the LOCAl (key operation possible) mode. In GPIB REMOTE mode, all the keys other than the power switch and LOCAL key are ineffective.
! ! Nameplate ∼ LINE INPUT 47.5 - 63Hz 400VA MAX 1/8 SPEED ( ECL to - 2V ) ERROR CLOCK DATA OUTPUT GATING DISABLE INJECT.
3-5 3.2 REAR PANEL 10 11 12 13 14 15 16 GPIB address Dip switch Sets the address when the instrument is remotely controlled by GPIB. It is usually set to . SYSTEM CONTROL switch When this switch is set to ' ON ' , this instrument control other one.
3-6 Section 3 DESCRIPTION OF PANELS AND CONNECTORS ..
4-1 SECTION 4 OPERATING INSTRUCTIONS 4.1 Internal Clock Generator Frequency Setting (OPTION 01) This section sets the frequency of the internal clock generator when the CLOCK generator (OPTION 01) is used. TUNING ON/OFF The frequency can be changed only when the TUNING LAMP is lit.
4-2 Section 4 OPERATING INSTRUCTIONS ① Press the TUNING key. The TUNING lamp lights. (The frequency can be changed only when the TUNING lamp is lit.) At this time, the figure of the digit that can cur- rently be changed blinks. ② Press the RESOLUTION key and select whether the fre- quency is to be set in MHz or kHz.
4-3 4.2 Generation Pattern Setting LOGIC Inverts the output pattern logic. PATTERN Selects the output pattern type. PRBS/ZERO SUB Selects the kind of pseudorandom pattern. (If ZERO SUB is selected, the 2 N pattern is selected.) Mark ratio Selects the output pattern (pseudorandom pattern) mark ratio.
4-4 Section 4 OPERATING INSTRUCTIONS 4.2.1 Logic modification ① The logic of the set pattern is changed in positive → nega- tive → positive order each time the LOGIC key is pressed. (The set logic is indicated by lighting of a lamp.) 4.2.2 Alternate pattern setting ① Select ALTN with the keys.
4-5 Change the BIT value with the button below the LED. When LOGIC is positive, lighting of the LED indicates high level. Used the PRESET ALL or PAGE key when changing DATA collectively.
4-6 Section 4 OPERATING INSTRUCTIONS 4.2.3 DATA pattern setting ① Select DATA with the keys. ② Set DATA LENGTH with the and keys. Select the digit to be set with the keys. Set DATA LENGTH with the keys. DATA LENGTH setting steps 2 to 65526: STEP 1 bit 65536 to 131012: STEP 2 bits See section 1.
4-7 4.2.4 ZERO SUBSTITUTION ① Select Z.S. with the keys. ② Set the 2 N PATTERN with the keys. (This PRBS is a pseudo PATTERN with a period of 2 N .) ③ Set the ZERO SUBSTITUTION BIT LENGTH. The pattern of bit length logic ø set here is substituted.
4-8 Section 4 OPERATING INSTRUCTIONS 4.2.5 Pseudo random pattern setting ① Select PRBS with the keys. ② Set the number of PRBS steps with the keys. ③ Set the PRBS mark ratio with the keys. When LOGIC is positive, select the mark ratio from the top row (0/8, 1/8, 1/4, 1/2).
4-9 4.2.6 ERROR addition ① Press the key. The LED in the key lights. ② Select the error addition rate with the keys. To add a single error, select the right of the LED using the key. At this time, the LED does not go on. ③ The single error adds one error each time the key is pressed.
4-10 Section 4 OPERATING INSTRUCTIONS 4.2.7 Tracking ① When the key is pressed, the LED inside the key lights and the instrument enters the tracking mode. ＊ When tracking, the MP1763C must be connected to an MP1764A/C by a GPIB. When the PATTERN LOADING lamp lights, the data is read and the keys are disabled.
4-11 4.2.8 Pattern SYNC. position Select the sync output. When VARIABLE POSITION is selected, set the SYNC OUT position as described in the following. 1/64 CLOCK, FIXED POSITION, OR VARIABLE POSITION can be selected. 1/64 CLOCK: 1/1 CLOCK is divided by 64.
4-12 Section 4 OPERATING INSTRUCTIONS When the PRBS DATA output is monitored on a sampling oscilloscope using each synchronization output, the following waveforms are shown: 1) 1/64 CLOCK Shown as an eye pattern. 2) FIXED POSN Shown as a 0 and 1 waveform.
4-13 4.3 Output Interface Termination conditions setting (DATA side) DATA/DATA displaying switching and DATA/DATA tracking Amplitude (DATA side) Offset (DATA side) Output ON/OFF Offset display standar.
4-14 Section 4 OPERATING INSTRUCTIONS 4.3.1 DUMMY terminal voltage switching When only one of the CLOCK 1 and CLOCK 1 complemen- tary outputs is used, use the attached semirigid cable (10 cm) to connect the unused side to the DUMMY terminal.
4-15 4.3.2 Amplitude, offset, and delay setting ① When you want to set front panel DATA/DATA output and CLOCK 1/CLOCK 1 output, switch to 1/1 SPEED. When you want to set rear panel 1/4 SPEED OUTPUT (OPTION), switch to 1/4 SPEED. ② Switches whether the DATA output or DATA output is set.
4-16 Section 4 OPERATING INSTRUCTIONS ＊ When the setting of ④ is changed, the actual waveform and output do not change. Only the displayed value changes (see the figure below). AMPLITUDE 1 Vp-p OFFSEET 2 V OH If V OH is changed to V TH : AMPLITUDE 1 Vp-p OFFSEET 1.
4-17 ⑥ Set the output to ON. Note 1: When output was turned off, the actual DATA, DATA, CLOCK 1, CLOCK 1, 1/4 DATA, and 1/4 CLOCK output amplitude becomes 0Vp-p, and the offset becomes 0V. Note 2: Since the output circuit is not opened even when the output is turned off, do not apply an external voltage to the output terminals of this instrument.
4-18 Section 4 OPERATING INSTRUCTIONS 4.3.5 Offset voltage setting range Fig. 4.3.5-1 Offset Reference Value and Amplitude Change Note: Since the offset-voltage upper and lower limit values are limited by V OH (-2.0 V ≦ V OH ≦ +2.0 V), when V TH or V OL are set, the amplitude is limited at a certain value and may not change further.
4-19 2.0 1.5 1.0 0.5 0.25 -4.0 -3.0 -2.0 -1.0 0 1.0 2.0 3.0 OFFSET (V) AMPLITUDE(V) • Offset reference: V OH Fig.
4-20 Section 4 OPERATING INSTRUCTIONS • Offset reference: V TH Fig. 4.3.5-3 Amplitude and Offset Voltage Setting Range Corresponding to Offset Reference Value 2.0 1.5 1.0 0.5 0.25 -4.0 -3.0 -2.0 -1.0 0 1.0 2.
4-21 • Offset reference: V OL Fig. 4.3.5-4 Amplitude and Offset Voltage Setting Range Corresponding to Offset Reference Value 2.0 1.5 1.0 0.5 0.25 -4.0 -3.0 -2.0 -1.0 0 1.0 2.0 3.0 OFFSET (V) AMPLITUDE(V) -2.
4-22 Section 4 OPERATING INSTRUCTIONS 4.4 MEMORY (Floppy Disk) File No. selection File control Mode selection Eject MEMORY EXIST DIR FILE No. RECALL DELETE SAVE RESAVE SHIFT PATT OTHERS MODE 1 2 3 4 1.
4-23 4.4.1 File save ① Insert a formatted floppy disk (2HD, 2DD) into the floppy disk drive. (For a description of how to format a floppy disk, see section 4.4.3 “ Disk formatting ” .) ② Select the PATT or OTHERS mode. PATT mode: The contents set at section 4.
4-24 Section 4 OPERATING INSTRUCTIONS 4.4.2 File recall ① Insert the floppy disk into the floppy disk drive and select the DIR mode. If the floppy disk is changed, always ex- ecute a DIR command. ② Check whither there is a file on the disk by pressing the keys.
4-25 4.4.4 File deletion ① Insert the floppy disk into the floppy disk drive and select the file name to be deleted. ② Press the SHIFT key. ③ Delete the file with the displayed file name by pressing the DELETE key. ⑤ (Verification) Execute a DIR command.
4-26 Section 4 OPERATING INSTRUCTIONS 4.4.6 Floppy disk (a) Disk type The floppy disk is formatted in standard MS-DOS format provided by the MS-DOS file handler. The formatted floppy disk is data disk type. This is because the MS-DOS file handler does not copy the MS-DOS system.
4-27 Item FREQUENCY TUNING MEMORY PATTERN LOGIC ERR ADDITION OFFSET DATA TERM DATA AMPLITUDE DATA OFFSET CLOCK TERM CLOCK AMPLITUDE CLOCK OFFSET CLOCK DELAY OUTPUT DISPLAY Initial setting 12, 500 MHz ON 00 (PTN mode, FILE NO. mode) PRBS 2 15 - 1, MARK RATIO 1/2 POS OFF VOH GND 1.
4-28 Section 4 OPERATING INSTRUCTIONS 1 AND bit shift count for the mark ratio 2 External error injection 3 Floppy disk format type 4 Alternate pattern A/B switching timing SW6 SW5 Bit shift number for Alternate A/B 0 0 : 0 BIT 5, 6 select timing 0 1 : 1 BIT 1 0 : 2 BIT 1 1 : 3 BIT 4.
5-1 SECTION 5 PRINCIPLES OF OPERATION 5.1 Pseudorandom Pattern (PRBS Pattern) The principle of pseudorandom pattern generation is shown in Table 5.1-1. The pseudorandom pattern is represented by the Nth-order generation polynomial shown in Table 5.1-1.
5-2 Section 5 PRINCIPLES OF OPERATION Fig. 5.1-1 Mark Ratio 1/4, 1/8 Pattern Generator Fig. 5.1-2 Example of Pseudorandom Pattern 1 2 3 4 5 6 1/2 Mark ratio 1/4 (1 bit shift) 1/8 (1 bit shift) 1/4 (3 bits shift) 1/8 (3 bits shift) Shift re g iste r PRBS pattern g enerator (See Table 5.
5-3 5.2 Pattern Synchronized Output Period 1 (set frequency) 1 (set frequency) 5.2 Pattern Synchronized Output Period 5.2.1 Pseudorandom pattern Period = × (2 N -1) × 128 N=7, 9, 11, 15, 20, 23, 31 (Where pulse width = × 64, plus pulse) 5.
5-4 Section 5 PRINCIPLES OF OPERATION . 5.3 Bit shift for Alternate A/B select timing A timing between Alternate pattern A/B select signal and Data output can be selected using the Dip switch on the rear of the instrument, and its selection step is one 128th of setting frequency.
6-1 SECTION 6 PERFORMANCE TEST 6.1 Test Equipment • Error detector (12.5 GHz or more measurement possible) • Sampling oscilloscope (bandwidth 50 GHz or more) • Clock generator (capable of covering the 0.05 to 12.5 GHz range) * no need when OPTION 01 is installed.
6-2 Section 6 PERFORMANCE TEST 6.3 Test Method Connect the MP1763C DATA and CLOCK1 connectors to the error detector as shown in 6.2-(1). Set Error Free at the setting shown below. Pattern LOGIC POS PRBS 2 31 -1 Mark ratio 1/2 Output DATA amplitude 0.5 Vp-p offset 0 Vp-p CLOCK amplitude 0.
6-3 6.5 Check Items Check the 1/8 SPEED output with the connection shown at the below. Pattern LOGIC POS PRBS 2 31 -1 Mark ratio 1/2 Check all the outputs with the connections DATA1 → DATA2 → - - - → DATA8. Fig. 6.3-2 Connection of rear panel 6.
6-4 Section 6 PERFORMANCE TEST ..
7-1 SECTION 7 MAINTENANCE 7.1 Daily Maintenance • Wipe external dirt with a cloth soaked in a diluted neutral detergent. • Remove dust or specks by using a vacuum cleaner. • Periodically clean the FDD head by using a 3.5-inch head-cleaning disk.
7-2 Section 7 MAINTENANCE . 7.4 Calibration Calibration of this unit should not be performed by other than Anritsu Corporation. We recommend yearly routine calibra- tion to maintain performance. 7.5 Disposal This equipment uses chemical compound semiconductors including arsenic and a fluoridated graphite lithium battery to back-up the memory.
8-1 SECTION 8 TROUBLESHOOTING AND REPAIR 8.1 Before Considering Trouble If the instrument is not operating properly for some reason, check it as follows: • Power is not turned on Is the power cord loose ? → Plug in firmly. ↓ Is the fuse blown ? → Replace the fuse.
8-2 Section 8 TROUBLESHOOTING AND REPAIR . • Floppy disk drive is not used. Is the floppy disk normal ? → Use the normal floppy disk. ↓ Is the head of floppy disk drive dusty ? → Clean head of floppy disk drive with 3.5 inch head cleaning disk set.
A-1 APPENDIX A PERFORMANCE TEST REPORT SHEET Name : MP1763C Pulse Pattern Generator Serial No. : Ambient Temperature : ˚ C Relative humidity : % • Output Test Conditions Criteria Results For Data and Clock1 5 0 M H z Error-free for each: Amplitude: 0.
A-2 APPENDIX A PERFORMANCE TEST REPORT SHEET . . . . ..
INDEX-1 INDEX Cross point adjust ----------------------------------- 4-17 Duty adjust ------------------------------------------- 4-17 Tracking ---------------------------------------------- 4-10 Erro.
INDEX-2 INDEX . . . . ..
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Anritsu MP1763C è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Anritsu MP1763C - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Anritsu MP1763C imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Anritsu MP1763C ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Anritsu MP1763C, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Anritsu MP1763C.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Anritsu MP1763C. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Anritsu MP1763C insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
