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VESTEL 17MB45-2, Руководство по обслуживанию

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 Solid-state silicon-avalanche and active circuit triggering technology 

 Back-drive protection for power-down mode 

 Lead-free version available 

Pin Configuration

11.9  MP1583

MP1583 is a step-down regulator which is used for providing 3.3V DC from 12V DC and 5V 
Vcc from 12V.

General Description

The MP1583 is a step-down regulator with a built in internal Power MOSFET. It achieves 3A 
continuous  output  current  over  a  wide  input  supply  range  with  excellent  load  and  line 
regulation. Current  mode  operation  provides  fast  transient  response  and  eases  loop 
stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal 
shutdown. Adjustable soft-start reduces the stress on the input source at turn-on. In shutdown 
mode the regulator draws 20µA of supply current.
The  MP1583  requires  a  minimum  number  of  readily  available  external  components  to
complete a 3A step down DC to DC converter solution.

Содержание 17MB45-2

Страница 1: ...OLLER MSTAR 11 5 1 Genaral Description 11 5 2 Features 12 6 INTEGRATED DVB T RECEIVER CHEERTEK 13 6 1 General Description 13 6 2 Features 13 7 4MX16 BIT SYNCHRONOUS DRAM DIGITAL SIDE SDRAM 16 7 1 Gene...

Страница 2: ...am 39 12 2 Integrated DVB T Receiver Block Diagram 41 12 3 17MB45 Analog Front End 42 12 4 17MB45 Digital Front End 42 12 5 17MB45 Digital CI ve Smart Card Interface 43 12 6 17MB45 HDMI Inputs 43 12 7...

Страница 3: ...ugh a cable The USB feature is supported through digital part of the mainboard 1 RF input VHF1 VHF3 UHF 75Ohm Common 1 Side AV CVBS R L_Audio Common 1 SCART socket Common 1 PC input Common 1 Headphone...

Страница 4: ...l Half NIM tuner for COFDM Covers 3 Bands From 48MHz to 862MHz for COFDM From 45 25MHz to 863 25MHz for CCIR CH Including IF AGC with SAW Filter Bandwidth Switching 7 8 MHz possible DC DC Converter bu...

Страница 5: ...1 2 Features TV IF audio filter with two channels Channel 1 L with one pass band for sound carriers at 40 40 MHz L and 39 75 MHz L NICAM Channel 2 B G D K L I with one pass band for sound carriers bet...

Страница 6: ...8 3 1 4 Frequency Response Frequency Response of Channel 1 Frequency Response of Channel 2...

Страница 7: ...K3958M 3 2 1 Standarts B G D K I L L 3 2 2 Features TV IF filter with Nyquist slopes at 33 90 MHz and 38 90 MHz Constant group delay 3 2 3 Pin Configuration 1 Input 2 Input ground 3 Chip carrier groun...

Страница 8: ...io quality PT2333 s external circuitry is simple and easily accessible and consists of flawless self protection capabilities The chip s packaging is small thus it occupies an insignificant amount of s...

Страница 9: ...h an integrated DVI HDCP HDMI receiver a multi standard TV video and audio decoder a video deinterlacer a scaling engine the MSTARACE 3 color engine an on screen display controller and a built in outp...

Страница 10: ...12 5 2 Features...

Страница 11: ...lexer DVB CSA compliant de scrambler RISC MPUs MPEG 1 2 4 AV decoder digital T encoder audio DACs USB 2 0 HS host controller memory card reader smart card reader CI controller and other peripherals Cl...

Страница 12: ...ES demultiplexing OneTS path CI CAM interface 216 pin only 32 general purpose PID filters 32 Section filters CRC 32 accelerator DVB CSA de scramblers Video Decoding and Processing MPEG 2 MP ML MPEG 4...

Страница 13: ...outs VBI insertion for Teletext CC and WSS Color burst amplitude control Programmable sync level On chip color bar generator High Speed I O USB 2 0 HS host controller Memory card reader with SD MMC an...

Страница 14: ...ed to provide a self timed row precharge that is initiated at the end of the burst sequence The refresh functions either Auto or Self Refresh are easy to use By having a programmable mode register the...

Страница 15: ...17 7 3 Pin Configuration...

Страница 16: ...aogram command The device supports Sector Erase and Bulk Erase commands Each device requires only a 3 0 volt power supply 2 7V to 3 6V for both read and write functions Internally generated and regula...

Страница 17: ...pin SO package 208 mils 8 Contact WSON Package 6x8 mm Pb Free Performance Characteristics Speed 50Mhz clock rate miximum Power Saving Standby Mode Standby Mode 50 A max Deep Power Down Mode 1 3 A typ...

Страница 18: ...led to provide a self timed row precharge that is initiated at the end of the burst sequence The refresh functions either Auto or Self Refresh are easy to use By having a programmable mode register th...

Страница 19: ...21 9 3 Pinning...

Страница 20: ...wer board is used with 19 MB45TV set 2 lamp panel and IPS17 power board is used with 22 MB45TV set 4 lamp panel These are supplied 12V 5V_stby and 5V panel supplies Also regulators step downs and mosf...

Страница 21: ...by the entire memory array can be write protected by connecting WP pin to VCC This section of memory then becomes unalterable until the WP pin is switched to VSS Features Extended operating voltage 2...

Страница 22: ...ow Power Consumption Typical Supply Current 200 A Per Amplifier Wide Common Mode and Differential Voltage Ranges Low Input Bias and Offset Currents Common Mode Input Voltage Range Includes VCC Output...

Страница 23: ...tion of signals on the B Port due to both switches temporarily being enabled during select pin switching The device is specified to operate over the 1 65 to 5 5V VCC operating range The control input...

Страница 24: ...21 is an EEPROM which is used for storing the VGA output resolution information General Description The ST24LC21 is a 1K bit electrically erasable programmable memory EEPROM organized by 8 Bits This d...

Страница 25: ...ng Enhanced Esd Latch Up Performances Pin Configuration 11 6 TDA1308T TDA1308T is a class AB stereo headphone driver which is used as a headphone amplifier on MB45 mainboard General Description The TD...

Страница 26: ...urrent limiter which is used for switching the USB interface on MB45 mainboard General Description The STMPS2161 power distribution switches are intended for applications where heavy capacitive loads...

Страница 27: ...damage Recovery from a thermal shutdown is automatic once the device has cooled sufficiently Internal circuitry ensures the switch remains off until a valid input voltage is present Features 90 m hig...

Страница 28: ...to ground line The internal unique design of clamping cell prevents over voltage on the power line protecting any downstream components Besides there is a back drive protection design in AZ1045 04SU...

Страница 29: ...r MOSFET It achieves 3A continuous output current over a wide input supply range with excellent load and line regulation Current mode operation provides fast transient response and eases loop stabiliz...

Страница 30: ...Ceramic Capacitors Up to 95 Efficiency 20 A Shutdown Mode Fixed 385KHz frequency Thermal Shutdown Cycle by Cycle Over Current Protection Wide 4 75 to 23V operating Input Range Output Adjustable From...

Страница 31: ...ed voltages 1 8V 2 5V 2 85V 3 3V and 5V The LM1117 offers current limiting and thermal shutdown Its circuit includes a zener trimmed bandgap reference to as sure output voltage accuracy to within 1 Th...

Страница 32: ...that runs from a single cell Lithium Ion Li battery Each converter can supply 800mA of load current from a 2 5V to 6V input voltage The output voltage can be regulated as low as 0 6V The MP2109 can al...

Страница 33: ...tain low gate charge for superior switching performance These devices have been design to offer exceptional power dissipation in a very small footprint for applications where larger packages are impra...

Страница 34: ...de the Digital TV signals are filtered using a standard dependent high rejection channel fitler and converted to a user programmable output frequency At the output of the D A converter the DTV signal...

Страница 35: ...ltering and frequency conversion functions for DTV with an external demodulator through LOW IF or DDI The XC5000 s integrated tuner is based on proprietary tunable wideband active RF filtering technol...

Страница 36: ...38...

Страница 37: ...39 12 BLOCK DIAGRAMS 12 1 General Block Diagram...

Страница 38: ......

Страница 39: ...12 2 Integrated DVB T Receiver Block Diagram...

Страница 40: ...42 12 3 17MB45 Analog Front End 12 4 17MB45 Digital Front End...

Страница 41: ...43 12 5 17MB45 Digital CI ve Smart Card Interface 12 6 17MB45 HDMI Inputs...

Страница 42: ...12 7 17MB45 Analog Interface MSTAR IC...

Страница 43: ...12 8 17MB45 Analog Input Output 12 9 17MB45 LVDS Output...

Страница 44: ...46 12 10 17MB45 Power...

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