ATSC TRANSMITTER Digital TV CODE APD043A TITLE APD047A APD045A ATSC TRANSMITTER REV 0 DATE 20/02/08
ATSC Transmitter Family Registration number: IT-17686 Registration number: IT-24436 CODE MODEL APD043A ATSC UHF TRANSMITTER APD047A ATSC VHF-III TRANSMITTER APD045A ATSC VHF-I TRANSMITTER SS 96 Km 113 70027 Palo del Colle (Ba) ITALY Tel. +39 (0)80 626755 Fax +39 (0)80 629262 E-mail: elettronika@elettronika.it Web site: http://www.elettronika.
Summaries ATSC Transmitter Family .................................................................................................. 2 Summaries ......................................................................................................................... 3 Warning .............................................................................................................................. 7 Warranty ................................................................................................
2.2 First Installation ....................................................................................................... 34 2.3 ATSC TRANSMITTER with GPS Clock Source ...................................................... 35 2.4 ATSC TRANSMITTER remote control with Elettronika RCU ................................... 35 2.5 ATSC TRANSMITTER with PC ............................................................................... 36 Section 3 - Operation ...................................................
- APD045A ATSC TRANSMITTER Cable Diagram ....................................................... 66 - APD043A_APD047A_APD045A ATSC TRANSMITTER Component list .................... 67 - SCH0135A Control Board and Display ....................................................................... 69 - Description .............................................................................................................. 69 - Dip-switch..............................................................................
- MTF0125A Component layout ................................................................................ 93 - SCH0320A Component layout ................................................................................ 94 - SCH0320A Component list ..................................................................................... 95 - SCH0320A Electric Diagram ................................................................................... 96 - SCH0388B Power Supply Interface Board ..................
WARNING The apparatus described in this manual has been designed and manufactured with devices to safeguard the users. In any case it is recommended that during any operation of installation, maintenance, miscellaneous interventions and calibrations requiring the apparatus to be switched on, THE USER TAKES ALL THE PRECAUTIONS AGAINST INCIDENTS It is required to use the proper clothes and protection gloves in order to prevent damages from incidental contacts with high-voltage parts.
Warranty Summary of warranty We, ELETTRONIKA S.r.l., SS096 Km 113 Z.I. PALO DEL COLLE (BA) ITALY, warrant to the ORIGINAL PURCHASER of a NEW product, for a period of one (1) year from the date of purchase by the original purchaser (the “warranty period”) that the new ELETTRONIKA product is free of defects in materials and workmanship and will meet or exceed all advertised specifications for such a product.
INTRODUCTION The apparatus described in this manual is the latest of this series, offering high performances, remarkable reliability and a wide range of characteristics, it all at a competitive cost. Its is easy to install and use. It only takes to follow the installation procedure as shown in this manual: after having removed all from the package, you only have to follow step by step the description in the various sections.
WARNING! The currents and voltages in this equipment are dangerous! Personnel must at all times observe safety regulation! This manual is intended as a general guide for trained and qualified personnel who are aware of the dangers inherent in handling potentially hazaedous electrical and electronic circuits. It is not intended to contain a complete statement of all safety precautions which should be observed by personnel in using this or other electronic equipment.
Treatment of electrical shock 1) If victim is not responsive follow the A, B, C’s of basic life support. PLACE VICTIM FLAT ON HIS BACK ON A HARD SURFACE A - AIRWAY B - BREATHING If unconscious, open airway lift up neck, push forehead back, clear out mouth if necessary, observe for breathing. If not breathing, begin artificial breathing. Tilt head, pinch nostrils, make airttght seal, 4 quick full breaths. Remember mouth to mouth resuscitation must be commenced as soon as possible.
2) If victim is responsive: - keep them warm; - keep them as quiet as possible; - loosen their clothing (a reclining position is recommended). FIRST-AID Personnel engaged in the installation, operation, maintenance or servicing of this equipment are urged to become familiar with first-aid theory and practices. The following information is not intended to be a complete first-aid procedure, it is brief and is only to be used as a reference.
Communication N°1 -2002/95/CE - RoHS Directive Further to the directives issued by the European Community, 2002/95/CE, 2002/95/CE and 2003/108/ CE, and to the Italian Decree of Law n° 151 dated 25 July 2005, this is to inform the customers of Elettronika S.r.l.
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DIGITAL TV ATSC TRANSMITTER User’s manual 15
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Section 1 - Information Contents: 1.1 Description 1.2 Main features 1.3 Technical characteristics Front Panel Rear Panel Block Diagram 1.
ATSC TRANSMITTER 1.1 DESCRIPTION The ATSC TRANSMITTER is an 8-VSB ATSC professional exciter, designed for the most demanding digital TV broadcasting applications. It integrates a modulator module with up-to-date FPGA technology and advanced digital signal processing algorithms in order to generate an absolutely accurate output 8-VSB signal, with exceptionally optimized modulation and the output filtering techniques.
1.
Front panel 1 Graphical LCD 2 Rotating Knob 3 Status LEDs 4 RS232 Socket 5 RF Monitor Connector 2 4 3 5 DESCRIPTION 1 RS232 for Serial pin-to-pin connection to PC with ERCos software and for firmware upgrade 20 Pin 2: TX Pin 3: RX Pin 5: GND
Rear panel 1 Main Switch 2 AC Socket with Fuse-Holder (2A) 3 RS485 Socket 4 Telemeasures Connector 5 TS Input Connectors - ASI1 Input - ASI2 Input - SMPTE1 Input - SMPTE2 Input 6 10MHz OUT Connector 7 10MHz IN Connector 8 RF Output Connector SMPTE2 SMPTE1 6 ASI2 10MHz OUT 7 ASI1 10MHz IN 8 RS485 for Serial pin-to-pin connection to RCU for remote control RF OUT 5 4 RS485 TELEMEASURES 3 1 LINE SOCKET 2 DESCRIPTION Pin 2: RXPin 3: RX+ Pin 4: +5V Pin 5: GND Pin 6: +5V Pin 7: T
SMPTE2 INPUT SMPTE1 INPUT ASI2 INPUT ASI1 INPUT 8-VSB MODULATOR 90-250Vac POWER SUPPLY 10MHz IN BANDPASS FILTER 10MHz OUT OUTPUT AMPLIFIER RS485 TELEMEASURES CONTROL & MONITORING RS232 DUAL-STAGE FREQUENCY CONVERTER SYNCHRONIZATION AGILE LOW-NOISE SYNTHESIZER DIGITAL-TO-ANALOG CONVERTER MONITORING OUTPUT RF OUTPUT Block diagram REDUNDANCY CONTROL
1.4 OPERATIONAL DETAILS All the sections of the ATSC TRANSMITTER, as showed in the block diagram above, are described in this section in order to give the user a general understanding of the operations of the equipment. 1.4.1 TS INPUT MANAGEMENT The ATSC TRANSMITTER is equipped with 2 ASI inputs and 2 SMPTE-310M inputs. Each input standard is available with two inputs in order to enable redundant operation for the transport stream input.
is detected, the unit switches automatically to the other input. The periodic occurrence of the Sync byte in the MPEG-TS packets is used to decide if a MPEG-TS flow is valid or not. If the user chooses to operate in Manual switching mode then he has to force which input is active. - Reed Solomon FEC If the ASI incoming inputs (note: only for ASI input mode) include the Reed Solomon codes (204 bytes packets), the module performs the error correction thanks to the 16 RS bytes.
external 10MHz reference to the 10MHz internal clock is totally seamless. The processing clock of the numerical section of the ATSC TRANSMITTER is always locked to the internal or to the external 10MHz reference. 1.4.3 OUTPUT SIGNAL The ATSC TRANSMITTER output signal is available at the output labelled RF OUT on a 50Ω N-type female connector. The frequency of the output signal can be set in the VHF and UHF bands, depending on the model type.
generated by the transmitter. Linear precorrection is used to exactly compensate these distortions in order to generate a signal which is maximally flat both in amplitude and group delay. The ATSC TRANSMITTER is able to perform amplitude and group delay correction over the full spectrum of the output signal. The linear precorrection is a factory procedure, so the equipment is delivered with the optimal linear precorrection curve already operating.
If a valid MPEG-TS signal is received over one of the ASI/SMPTE inputs, then the equipment will immediately generate the signal on the RF output. In absence of a valid MPEG-TS signal the equipment can be set to be muted or not. Enabling the muting function is possible by the user menus, as explained in the Menu Management section of the present manual.
z Amplifier Voltage An amplifier power supply voltage alarm occurs when the monitored voltage is outside the nominal level ±10% range. The nominal voltage level is a factory setting (usually, 28V). This alarm does not trigger a powering off of the output signal. If the monitored voltage is near 0V, most probably the fuse located near the power amplifier stage is burned.
z External reference alarm When external or ASI/SMPTE reference is set, the modulator continuously monitors the presence of such reference. If it is not able to find a correct signal, it automatically switches to the internal reference. In this situation, an external reference alarm is triggered. This alarm does not trigger a powering off event. See the Synchronization and Clocks paragraph for more information.
output power level in the Power menu (see the Menu management paragraph) and the use of 4 thresholds as below: ____action threshold ________goal threshold ___________optimal power value ________goal threshold ____action threshold The distance of the thresholds from the optimal value is of ±20mV and ±30mV measured as monitor voltage. The AGC changes the output power to bring the power from the amplifier inside the goal thresholds range.
1.14.11 LOG The ATSC TRANSMITTER is provided with an internal non-volatile memory used to store up to 200 events in a log. For each event, the date, time and a description are stored in order to help the user in understanding the sequence of the events and the cause of each alarm. The log can be viewed locally on the display (see the LOG screen in the Menu Management paragraph) or by remote. It is possible to clear the log contents only locally.
Section 2 - Installation Contents: 2.1 Operating environment 2.2 First installation 2.3 ATSC TRANSMITTER with GPS Clock Source 2.4 ATSC TRANSMITTER remote control with Elettronika RCU 2.
2.1 OPERATING ENVIRONMENT You can install the apparatus in a standard component rack or on a suitable surface such as a bench or desk. In any case, the area should be as clean and well-ventilated as possible. Do not locate the transmitter directly above a hot piece of equipment. 2.
2.3 ATSC TRANSMITTER WITH GPS CLOCK SOURCE 1. Connect the 10MHz reference only for higher stability or frequency locking purposes 2. The 1PPS signal is not used for ATSC operation, so leave this output not connected. TELEMEASURES RF OUT 10MHz IN ASI1 10MHz OUT ASI2 LINE SOCKET SMPTE1 RS485 SMPTE2 10MHz OUT GPS CLOCK SOURCE 2.
2.
Section 3 - Operation Contents: 3.1 Local Control 3.2 LEDs 3.3 Menu Management 3.4 Parameters and Menu description 3.5 Log Screen 3.6 Alarm Screen 3.
3.1 LOCAL CONTROL A large number of options of the ATSC TRANSMITTER can be easily and intuitively controlled through the human-to-machine interface on the right side of the front panel. This is composed by a graphic display, a clickable knob and three LEDs. Right after switching on, a screen showing the initialization process appears on the display. During this time the controller checks the good communication among internal parts of the equipment. 3.
3.3 MENU MANAGEMENT After the initialization screen, the DIAGRAM screen is shown on the display. It represents a simple diagram of the machine: ASI/SMPTE inputs, the ATSC modulator, the up-converter and the amplifier. The most important parameters are also shown in this screen. Pressing the knob while in this menu you will be directed to the RF Power menu for a quick intervention during emergency situations. 3.3.1 TITLE BAR On the top of the display, the title bar is shown.
• • • • The lock icon ( ) at the right of the bell icon is displayed when the control is password-locked (see later in this manual for more information about password locking). When the user unlocks it by typing the correct password, the lock icon disappears. The Forward Power is shown about at the centre of the status bar. It is indicated in Watt. This is the power as it is measured by the directional coupler at the very last stage of the power amplifier, just before the output connector.
3.3.4 BROWSING THE MENUS AND PARAMETERS The user can browse the menus, see the parameters values, change the settings of the machine and make all the operations simply by using the knob located on the right of the display. The knob can be rotated left or right and be pushed. From the first screen (DIAGRAM screen), it is possible to rotate the knob to the left to enter the MAIN MENU screen. In this screen six icons (INPUT, MOD, RF, SETUP, LOG, ALM) are shown, arranged in 2 lines of 3 icons.
When an icon is selected, click the knob to enter the associated menu. For example, by clicking the knob when the RF icon is selected, the menu related to the RF signal is shown. The ATSC TRANSMITTER is a complex piece of equipment and its setting could be a difficult task. The multitude of parameters are arranged in six tree-like menus, starting from the six top-level menu icons. In this way, it is simpler and more comfortable to find the desired parameter. 3.3.
menu from the top to the bottom. As before, this new (sub) menu is composed by several items that can be other submenus or parameters. Even if it has leading dots, the “Exit...” item, the first item of all menus, isn’t a real submenu. By clicking on “Exit...”, it goes back to the parent menu, if any, browsing the tree-menu from the bottom to the top. If the menu is at the top-level, by choosing “Exit...” the menu icons screen is shown.
3.4 PARAMETERS AND MENUS DESCRIPTION This paragraph contains a detailed description of all the menus and parameters. Please be sure to read this section very carefully before changing any setting of the exciter. Check the menu map for a general overview of the parameters. The menus and parameters arrangement is subject to change, mostly with the control firmware version. Your arrangement could be slightly different than the one described in this manual.
10MHz input (Present, Absent) This is a read-only parameter that indicates the presence or absence of the external 10MHz reference. Please, check the Synchronization and Clocks paragraph for more information about the input reference stage of the modulator. ASI1 sync (Present, Absent) If a valid ASI1 input is detected by the modulator, the word Present is written. On the contrary, if no ASI1 input is detected by the modulator, the word Absent is written.
- Stream1 Errors Submenu MPEG sync (Present, Absent) If Absent is written, no MPEG sync is detected. Uncorrected Pkt (No, Yes) If this parameter is Yes, incorrect input packet is detected (only in 204 RS coded input mode). Bitrate mismatch (No, Yes) If this parameter is Yes, a bitrate overflow or underflow condition is present (only if bitrate adaptation is not performed). PCR Rate (No Yes) If Err is shown, no PCR is detected over 10 seconds or PCR interval error.
3.4.2 MODULATION MENU MODULATOR (OK, Err, No Comm) If the ATSC Modulator module is correctly working, this read-only parameter shows OK. If the modulator has an internal error or it doesn't communicate with the control board, it shows "Err" or "No Comm". Warning! If this parameter isn't OK, a serious malfunction of a core part of the ATSC TRANSMITTER is present. Be sure to solve this problem before installing the equipment at the final destination. Bitrate adapt.
3.4.3 RF MENU Frequency Click on this item to enter the Frequency submenu to read and/or modify the centre frequency and the bandwidth of the output signal. Power Click on this item to enter the Power submenu to control the output power level and to configure the AGC (see the AGC: Implementations and Details paragraph for more informations).
- Frequency Submenu Standard ([User], UHF, VHF) The user can set the output signal frequency by choosing Standard/Channel pair or by setting a custom frequency. At the time of printing this manual, the available standards are UHF and VHF. Others may be available with future firmware releases. When a custom frequency is set instead, User appears as the standard and channel and the channel offset is reset.
- Power Submenu Power Control (Manual, Auto) This parameter sets the power control mode as either automatic (AGC) or manual. See the AGC: Implementation and details paragraph for more information. Warning! For safety operation it is better to set to 0% the power level that is not selected. For example, if the automatic power control mode is selected, it is better to set the manual power level to 0%. This way, after changing from automatic to manual, the output power will safely starts from zero level.
Ext AGC Status (—, Idle, Locked, Lowset, Alarm, Max, Min, Pull-up, Pull-down) This read-only parameter shows the current status of the external AGC that can be one of the following: • —: the external AGC is disabled; • Idle: the external AGC is stopped (e.g.
- Amplifier Submenu V This is a read-only parameter that shows the voltage of the RF amplifier stage, measured in Volt. If this value is outside the normal range, an alarm occurs and the value on the display blinks. I This is a read-only parameter that shows the current absorbed by the RF amplifier stage, measured in Ampere. If this value is outside the normal range, an alarm occurs and the value on the display blinks.
- Output Submenu Spectrum (Normal, Inverted) This parameter enables or disables the spectrum inversion. RF Mute (Auto, ON) If you set this parameter to ON, the output is muted. If Auto is set, the output can be muted depending on some conditions. In this case, the current mute status is shown in parenthesis. Mute on In. Err (ON, OFF) If this parameter is set to ON, the output will be automatically muted whenever an error on ASI inputs occurs (for example if the inputs are absent).
- Precorrection Submenu Linear Precorrection (ON, OFF) The linear precorrection feature can be enabled/disable by setting this parameter. See the Linear Precorrection paragraph for more information. Non lin (ON, OFF) With this parameter it is possible to change the non-linear precorrection behaviour of the modulator. If it is set to OFF, the non-linear precorrection is disabled. If it is set to Null, the non-linear precorrection is enabled, but a “null curve” is used.
3.4.4 SETUP MENU Control Click on this item to enter the Control submenu to configure the remote control and the password locking. Log Clear This is an “action parameter” and it is used to clear the log content. Be sure to read the latest events before clearing the log. After clearing, it isn’t possible to undelete the events. Factory Settings During the test phase of the machine, most of all parameters and adjustments are well defined and saved in a non-volatile memory.
- Control Submenu Control (Local, Remote) The ATSC TRANSMITTER is fully-controllable locally (by using the display and the knob) or by remote (by using RS232/RS485 serial ports). With this parameter it is possible to set local control or remote control. When local control is selected, only reading commands from remote will be answered, while writing commands will be denied. In this case, changing of settings is possible only locally.
- Display Submenu Backlight (0÷100%) The graphical LCD has a white-LED backlight. Its intensity can be changed by software using this parameter. Differently from usual parameters, the modification immediately takes place when the user rotates the knob. When you reach the desired intensity level, click on the knob and reply “Yes” to the confirmation question to accept the new value. If you reply “No”, the value set before entering the parameter is restored.
- Power Supply Submenu +5V This read-only parameter shows the +5V power supply voltage monitored by a voltage sensor. If this voltage is outside a reasonable range, an alarm occurs and the value starts blinking on the display (see the Alarms and automation paragraph for more information). +12V This read-only parameter shows the +12V power supply voltage monitored by a voltage sensor.
3.5 LOG SCREEN By clicking on the LOG icon, you enter the LOG screen. This isn’t a real menu, like the others, but only a log view. The first event shown is the first event in the log. Move the knob to scroll the log up/down. In the titlebar of the small centred window, the number of the event shown and the total number of events stored in the log are indicated. If the event is an alarm, a bell icon is drawn on the leftmost side of the titlebar.
The upgrade of the firmware should start. After upgrading, the equipment will automatically start with the new firmware. Warning! Keep in mind that the firmware upgrade is a critical task. You could have a non-working machine if the upgrading process doesn't end with success or if you download a wrong firmware.
ATSC Transmitter Menu Map
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Section 4 - Diagram Contents: - APD043A UHF ATSC TRANSMITTER Cable Diagram - APD047A VHF-III ATSC TRANSMITTER Cable Diagram - APD045A VHF-I ATSC TRANSMITTER Cable Diagram - APD043A_APD047A_APD045A Component list - Modules description 63
20 POLES FLAT CABLE E0064 SP-320-27 SWITCHING POWER SUPPLY ASI1 ASI2 SMPTE1 RS232 16 POLES FLAT CABLE RS485 J2 RF MONIT.
20 POLES FLAT CABLE E0064 SP-320-27 SWITCHING POWER SUPPLY ASI1 ASI2 SMPTE1 SMPTE2 RS232 16 POLES FLAT CABLE RS485 J2 RF MONIT.
20 POLES FLAT CABLE E0064 SP-320-27 SWITCHING POWER SUPPLY ASI1 ASI2 SMPTE1 SMPTE2 RS232 16 POLES FLAT CABLE RS485 J2 RF MONIT.
Component list APD043A - APD047A - APD045A Elettronika Code Description Qty E0064 MTF0116AR0 MTF0118AR0 MTF0125AR0 DET0531I DET0600 07613 07602 A1592 A1703 PAN0187R0P 02700 02701 02699 02867 02695 02518 02519 05069 DET0670 DET0315 08502 08521 SCH0135AR1 02035 DET1322R1P DET1323R0P DET0876I CON0352R2S CON0353R0P FLR0002 FLR0003 FUS02A 02503A V0760 SP-320-27 DI SWITCHING POWER SUPPLY 5W RMS UHF AMPLIFIER MODULE 5W RMS VHF-III AMPLIFIER MODULE 5W RMS VHF-I AMPLIFIER MODULE DET0531AR1 FAN CONVEYER DET0600
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CONTROL BOARD AND DISPLAY SCH0135AR1 DESCRIPTION The Controller module, located on the right side of the DIGITAL TRANSMITTER, is the user interface of the whole modulator.
SCH0135AR1 Top layer Component layout 70
SCH0135AR1 Bottom layer Component layout 71
SCH0135AR1 COMPONENT LIST Part Name/Number Description Qty. Comps. BATT BH001RB 3093_90 CC 100nF-S 01065E 03093 03090 BATTERY HOLDER 01065E Y5V 0805 COND 1 26 CC 10nF-S 01053A CC 15pF-SS CC 1nF-S 01096A CC 1uF100V-S 01760A CC 220nF-S 01069B CC 47pF-S 01090B CE 10uF16V-S CE 10uF16V-S 01776A CE 22uF25V-S CE 47uF 16V-S CE 4u7F35V-S 01623A CE 4u7F35V-S 01774A CE D4 N. M. D BAS85-S D BAS85-S N. M.
Part Name/Number Description Qty. Comps. Page 2/2 J DB9_F-0° LT J FC-10P 02697-02699 J FC-16P 02701-02700 J FC-20P 02868-02867 R 0805 N. M. R 0R0-SS R 100K-S 00065C R 100R-S 00029B R 10K-S 00053C 02794 PCB CON. DB9 LONG T 02697+02699 PCB CON. POL 02701+02700 PCB CON. POL 02868+02867 PCB CON. POL N. M.
ATSC UHF MODULATOR MODULE A1592 DESCRIPTION The ATSC UHF Modulator module is a very high performance Digital TV modulator, fully compliant to the A/53 recommendation. The module includes highly linear 8-VSB modulation capability, excellent MER value, ASI and SMPTE-310M compatibility, digital pre-correction, low phase noise and high performance up converter.
ATSC VHF-I/III MODULATOR MODULE DESCRIPTION The ATSC VHF Modulator module is a very high performance Digital TV modulator, fully compliant to the A/53 recommendation. The module includes highly linear 8-VSB modulation capability, excellent MER value, ASI and SMPTE-310M compatibility, digital pre-correction, low phase noise and high performance up converter.
5W UHF RMS AMPLIFIER MODULE MTF0116AR0 DESCRIPTION The MTF0116A is the final stage of the 5W UHF RMS of the transmitter, based on LDMOS technology. It includes the final stage itself (SCH0417A), its cooling heatsink, and an interface board (SCH0388B) which allows to control the forward power, the reflect power, the Gain and the temperature.
MTF0116AR0 Component layout RF OUT RF MONITOR J2 J4 SCH0388B POWER SUPPLY BOARD J1 TP1 FWD FWD TP2 REF REF TP3 +5V +5V MTF0116A RF AMPLIFIER MODULE J5 J6 J7 TP4 +28V +28V TP7 GATE GATE TP8 CTRL CTRL J8 J9 RF IN GND 80
SCH0417AR0 Component layout 81
SCH0417AR0 COMPONENT LIST Part Name/Number Description CC 100nF-S 01065C CC 100pF-S 01092 CC 1nF-S 01096 CC 1uF 100V CC 470nF 63V-S CE 10uF16V-S CE 10uF50V-S 01779A CP 10pF-S CP 12pF-S CP 15pF-S CP 1p8F-S CP 47pF-S CP 5p6F-S CP 6p8F-S D 1N4148-S 03002 DZ 3V9-S H ANAREN 1F1304-3 IND CBD8 05072 IND VK200 05013 R 10R-S 00017A R 1K5-S 00043A R 22K-S 00057A R 3K3-1W-S R 47K-S 00061A R 47R-1W-S R 50R 60W TERM RV 50K-S-H/S 00797 TR MRF373A-S 01065C Y5V 1206 CAPACITOR 4 01092 SMD 1206 CAPACITOR 2 01096 SMD 1206
5W VHF-III RMS AMPLIFIER MODULE MTF0118AR0 DESCRIPTION The MTF0118A is the final stage of the 5W VHF RMS of the transmitter, based on MOS technology. It includes the final stage itself (SCH0436A), its cooling heatsink, and an interface board (SCH0388B) which allows to control the forward power, the reflect power, the Gain and the temperature.
MTF0118A Component layout RF OUT RF MONITOR J2 J4 SCH0388B POWER SUPPLY BOARD J1 TP1 FWD FWD TP2 REF REF TP3 +5V +5V MTF0118A RF AMPLIFIER MODULE J5 J6 J7 TP4 +28V +28V TP7 GATE GATE TP8 CTRL CTRL J8 J9 RF IN GND 87
SCH0436AR0 Component layout 88
SCH0436AR0 COMPONENT LIST Part Name/Number Description Qty. Comps. Page 1/2 CC 100nF-S 01065C 01065C Y5V 1206 CAPACITOR 11 CC 100pF-S 01092 CC 10pF-S 01086 CC 1206 N. M. CC 1nF 01041 CC 1nF-S 01096 01092 SMD 1206 CAPACITOR 01086 SMD 1206 CAPACITOR N. M.
Part Name/Number Description R 560R-1%-S 00038B R 56K-S R 68R-S 00027A R 75R-1%-S 00221B RV 50K-S-H/S 00797 TR BLF1043-S TR MRF373A-S 00038B RES 1/4W 1% SMD 1206 2 00062A RES 1/4W 5% SMD 1206 1 00027A RES 1/4W 5% SMD 1206 2 00221B RES 1/4W 1% SMD 1206 2 00797 SMD VARIABLE RESISTOR 3 03469 LDMOS TRANSISTOR 2 04031A LDMOS TRANSISTOR 1 90 Qty. Comps.
5W VHF-I RMS AMPLIFIER MODULE MTF0125AR0 DESCRIPTION The MTF0125A is the final stage of the 5W VHF-I RMS of the transmitter, based on MOS technology. It includes the final stage itself (SCH0320A), its cooling heatsink, and an interface board (SCH0388B) which allows to control the forward power, the reflect power, the Gain and the temperature.
MTF0125A Component layout RF OUT RF MONITOR J2 J4 SCH0388B POWER SUPPLY BOARD J1 TP1 FWD FWD TP2 REF REF TP3 +5V +5V MTF0125A RF AMPLIFIER MODULE J5 J6 J7 TP4 +28V +28V TP7 GATE GATE TP8 CTRL CTRL J8 J9 RF IN GND 93
SCH0320AR0 VHF-I Amplifier Board Component layout 94
SCH0320AR0 COMPONENT LIST Part Name/Number Description Qty. CC 100nF-S 01065C CC 10nF 01053 CC 1206 N. M.
POWER SUPPLY INTERFACE BOARD SCH0388BR1 SCH0388BR1 Component layout 97
SCH0388BR1 COMPONENT LIST Part Name/Number Description Qty. Comps. CC 100nF-S 01065C CC 1206 N. M.
SP-320-27/48 SWITCHING POWER SUPPLY E0064 MAIN FEATURES - Universal AC input / Full range - Built-in active PFC function, PF >0.95 - Protections: Short circuit / Over load / Over voltage / Over temp. - Forced air cooling by built-in DC fan - Built-in fan speed control - Fixed switching frequency at 100kHz MECHANICAL SPECIFICATION 1 AC/L 2 AC/N 3 FG 4-5 DC OUTPUT -V 6-7 DC OUTPUT +V 215 150 25 32.
TECHNICAL CHARACTERISTICS MODEL 48V RATED CURRENT 11.7A 6.7A CURRENT RANGE 0 ~ 11.7A 0 ~ 6.7A RATED POWER 315.9W 321.6W (max.) Note 2 VOLTAGE ADJ. RANGE VOLTAGE TOLERANCE Note 3 LINE REGULATION INPUT (Note 4) OTHERS ± 1.0% ± 1.0% ± 0.2% ± 0.2% ± 0.5% 800ms, 50ms/230VAC HOLD UP TIME (Typ.) 16ms/230VAC ± 0.5% VOLTAGE RANGE 88 ~ 264VAC 47 ~ 63Hz POWER FACTOR PF>0.95/230VAC EFFICIENCY (Typ.) 88% AC CURRENT 5A/115VAC INRUSH CURRENT (Max.
