TFT LCD Color Monitor TECHNICAL SERVICE MANUAL L70S --1-- L70S Technical Service Manual Safety Precaution WARNING Service should not be attempted by anyone unfamiliar with the necessary precautions on this monitor. The followings are the necessary precautions to be observed before servicing. 1. When managing this monitor , cover with shield plate to avoid to scrach on LCD surface. 2. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as nonmetallic control knobs, insulating covers, shields, isolation resistor capacitor network etc. 3. Before returning the monitor to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as signal connectors, terminals, screw heads, metal overlays, control shafts etc, to be sure the monitor is safe to operate without danger of electrical shock. General Information 1. Description This 17" LCD color display monitor is operated in R, G, B drive mode input. 2. Operating instructions 2-1. Front Power Switch , Menu, Select, Down, Up, DPMS (Power) LED 2-2. Rear Input connector (AC & Signal Cable) 2-3. OSD Controls H/V Position, Clock Phase, Brightness, Contrast, Recall, Color Control, Language, Auto Adjust, Miscellaneous, Audio control, Auto Color 3. Electrical Characteristic 3-1. Power Supply AC/DC - Input Voltage : 90V~264V Input Current : 1.0 A Max Input Ferquency : 50 ~ 60Hz - Output Voltage 12V/5V Output Current 2A/1.5A 3-2. Video Input Signal Level : 0.7 Vp-p analog signal(at 75 ohm termination to ground) Polarity : Positive 3-3. Horizontal Synchronization Signal Level : TTL High : 2.4V min Low : 0.4V max Polarity : - or + Frequency : 31kHz ~ 80kHz 3-4. Vertical Synchronization Signal Level : TTL High : 2.4V min Low : 0.4V max Polarity : - or + Frequency : 56Hz ~ 75Hz --2-- Control Description Front View Support Modes H Frequency (kHz) 31.5 31.5 37.5 37.9 46.9 48.4 56.5 60.0 63.900 79.976 V Frequency (Hz) 70.1 59.9 75.0 60.3 75.0 60.0 70.1 75.0 60.000 75.025 H Polarity 0 0 0 1 1 0 0 1 1 1 V Polarity 1 0 0 1 1 0 0 1 1 1 Dot Clock (MHz) 28.322 25.175 31.500 40.000 49.500 65.000 75.000 78.750 108.00 135.00 NO 1 2 3 4 5 6 7 8 9 10 Resolution 720 x 400 640 x 480 640 x 480 800 x 600 800 x 600 1024 x 768 1024 x 768 1024 x 768 1280 x 1024 1280 x 1024 Power Switch / LED Indecator Video Input Signal Recommended signal are shown below •Video Signal Video level : 0 to 700mV Polarity : positive Video Input : RGB separated Analog level Sync input : H-Sync(TTL level) V-Sync (TTL level) •Waveform Video input(R.G.B) --3-- L70S Technical Service Manual ACTIVE (T4) � � Front Porch� (T5) Period (T1) Sync Width (T2) Back Porch (T3) ACTIVE (T4) � � Front Porch� (T5) Period (T1) Sync Width (T2) Back Porch (T3) • H-Sync • V-Sync 0 1 2 3 4 251 252 253 254 255 700mV 0mV • Signal: 256 level gray scale • Linear stepping: (2.73mV ~ 256 Steps) --4-- Video Input Terminal A 15 Pin D-sub connector is used as the input signal connector Pin and input signals are shown in the table below. Pin Description D-Sub miniature connector SIGNAL PIN NO. 3 2 1 5 4 6 7 8 9 10 11 12 13 14 SEPARATE SYNC/ DDC 1/2B RED GREEN BLUE GND RETURN RED GROUND GREEN GROUND BLUE GROUND N.C LOGIC GROUND GROUND SDA H-SYNC(TTL) V-SYNC(VCLK) 15 SCL Connecting with External Equipment Cautions Be sure to turn off the power of your computer before connecting the monitor. --5-- L70S Technical Service Manual LINE OUT --6-- Theory of Operation 1. AC/DC INVERTER Input voltage : DC 12V Input current : 2.0A(Max) Output current : 6.5mArms(TYP) Frequency(switching) : 47KHz(Max) Output power : 18W(TYP) On/off control voltage : 5.0V 2. AC/DC ADATOR This display device shall maintain the specified per formances in the range de scribed below Frequency : 50/60Hz Voltage : 90 - 264Vac RMS The following consumption requirments shall be met: Power Consumption : 35W(typ) Current consumption : < 1.0 Aac RMS Output Specification: output1 : 12V/2A output2 : 5V/1.5A 3. Audio System This monitor has a audio system including two micro loudspeakers. Each of two micro loudspeakers has a 2W(Max) output power. This system also supports a headphone(earphone) output. - Auto Signal Input : < 600mVp-p(Max.) - Auto Amplifiers 2W+2W Amplifier with DC Volume Control (for two micro loudspeakers) RL=8 @THD=10% Vcc=14V (min. 10V, max. 18V) Dual-Audio Power Amplifier (for a headphone output) RL=32 @THD=10% Vcc=4.5V (min. 1.8V, max. 15V) - Speaker Micro Loudspeaker Spec. Normal impedance 8 15% at 1.0V 1.5KHz Resonance Freq. 550Hz +/- 110Hz at 1.0V Freq. Range fo ~ 20KHz Power Rating Normal 1.0W/Peak 2.0W 4. DPMS MODE Status on Pulse Pulse Active Blank No Pulse No Pulse off Signal Power Consumption - Within 3 Sec Recovery Time Orange LED Indicator Green 35W(typ) 1W (TYP) 230V AC H-Sync V-Sync Video --7-- L70S Technical Service Manual On Screen Controls & LED Indicator The menu for screen setting adjustment is located in the OSD and can be viewed in one of five languages OSD feature andmain funcrions are as follows: he OSD adjustments available to you are listed below. BRIGHTNESS Adjust the brightness of the screen. CONTRAST Adjust the contrast of the screen. COLOR CONTROL Color temperature affects the tint of the image. With lower color temperatures the image turns reddish and with higher temperatures bluish. There are three color settings available: Mode 1(9300K), Mode 2(6500K) or USER. With the USER setting you can set individual values for red, green and blue. POSITION H POSITION Adjusts the horizontal position of the entire screen image. V POSITION Adjusts the vertical position of the entire screen image. 1280x1024 H:63.9 V:60.0 BRIGHTNESS BRIGHTNESS --8-- CLOCK PHASE PHASE Adjust the noise of the screen image. CLOCK Adjust the horizontal size of the entire screen image. MISCELLANEOUS RECALL Recall the saved color data. OSD TIMER You can set the displayed time of OSD Menu window on the screen by using this adjustment. OSD POSITION Adjust the OSD menu's horizontal or vertical position on the screen. AUTO COLOR Optimum color setting is auto programmed for user’s convenience. LANGUAGE You can select the language in which adjustment menus are displayed. The following languages are available : English, French, German, Italian, Spanish, Swedish, Finnish, Danish, Portuguese, Dutch and Japanese or chinese. AUDIO VOLUME Adjust the audio volume level. AUDIO This menu is used to choose audio on or off. AUTO ADJUST You can adjust the shape of screen automatically at the full screen pattern. --9-- L70S Technical Service Manual Getting Fine Picture Step 1. At first Display, a full screen, such as, Window's background or "H" character should be achieved by using Editor (ex: Notepad. exe) Step 2. Adjust the screen to the center of the Display(LCD), by using the top and bottom display controls. (i.e.Using V-Position Adjust menu) Step 3. Adjust the screen to the center of the Display(LCD), by using the right and left display controls. (i.e.Using Clock and H-Position adjust menu) Step 4. Adjust the Clock-phase until the "H" Character displays clear. Step 5. Using the Contrast. Brightness, and Color Control menu, set the color to your preference. Step 6. When you finish the adjustment, you can save your settings by pressing on the menu until the OSD screen has disappeared. Factory Setting & EEPROM Initialization Method Factory Setting Method - Connect the signal cable and power cable to the LCD monitor. - Press Power switch with pressed MENU key.(Menu key + Power key). - Then, a User can change the factory setting value in OSD menu. - Save changed value and Turn off the power s/w. - Turn on the power, adjust the screen. --10-- Specification LCD Module SIZE 17” Viewable diagonal Dot Pitch 0.264mm Brightness Response Time 260 cd/m2 (TYP) 16m- sec (Typ) Input Signal R.G.B Analog Connector 15 pin D-SUB Connector SYNC H-Freq 31.0kHz ~ 80.0kHz V-Freq 56.0Hz ~ 75Hz Display Area Color 337.92(H)X270.336(V)mm 262K Colors Resolution Video Bandwidth User Control & OSD Control Contrast,Brightness, Position, Auto Color, Clock Phase, Color Control, Language, Auto Adjust, Miscellaneous, Audio Control Power Management VESA DPMS Standard Plug & Play VESA DDC 1/2B Safety & Regulation EMC Ergonomi Safety FCC CLASS B , CE , VCCI TCO’99 cULus, CE, TUV-GS, SEMKO Temperature 30 to 80%(Non-condensing) 5 to 90%(Non-condensing) packed Humidity Operating Operating Storage Storage 5 to 35 °C - 5 to 45 °C Weight unpacked Dimension(WXHXD mm) * Specification is subject to change without notice for performance improvement. 5.0Kg 372.5 X 398 X 185 mm 3.8Kg 1280 X 1024 @ 75Hz 135MHz --11-- L70S Technical Service Manual Critical Parts Specification 1. LCD Module M170EN05(LTM170EU-L01, HT17E12-100 is a a-si TFT active matrix color liquid crystal comprising amorphous silicon TFT attached to each signal electrode, a driving circuit and a backlight. M170EN05(LTM170EX-L01, HT17E12-100 has a built-in backlight display area contains 1280X1024 pixels and can display full color (262K colors) Display area 337.92(H)X270.336(V)mm Drive system a-si TFT Display color 262K Colors Number of Pixel 1280X1024 Pixel arrangement RGB vertical strip Pixel pitch 0.264(H)X0.264(V)mm Contrast Ratio* 450:1 Viewing angle* Horizontal: 70 degree, 70 degree Vertical: 70 degree, 70 degree Response time* 16ms(Typ) Luminance* 260cd/m2(Typ) Signal system Digital RGB signals, Sync signals(H, V-Sync), Dot clock(DCLK) , DE(Data Enable) Supply voltage 5V Backlight Edge light type: Four colt cathode fluorescent lamps power consumption 19.6W(TYP) CCFL *: only M170EN05 Vendor Au Optronics SamSung Hydis Type M170EN05 LTM170EU-L01 HT17E12-100 --12-- Connector Name / Designation Manufacturer Type Parts Number Mating Housing Part Number Interface Connector / Interface card JAE or compatible FI-X30S-HF FI-X30S-H 2) CONNECTIONS Physical interface is described as for the connector on module. These connectors are capable of accommodating the following signals and will be following components 3) Signal Pin Connector Name / Designation Manufacturer Type Parts Number Mating Type Part Number Lamp Connector / Backlight lamp JST BHR-04VS-1 SM04(4.0)B-BHS-1-TB Pin# 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 Pin# 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Signal Name Rxo0- Rxo1- Rxo2- GND RxoC+ Rxo3+ RxEo+ RxE1- GND RxE2+ RxEC+ RxE3+ NC NC Power Signal Name Rxo0+ Rxo1+ Rxo2+ RxoC- Rxo3- RxE0- GND RxE1+ RxE2- RxEC- RxE3- GND NC Power Power 4) Signal Description The module using a pair of LVDS receiver SN75LVDS82 (Texas Instruments) or compatible. LVDS is a differential signal technology for LCD interface and high speed data transfer device. Transmitter shall be SN75LVDS83(negative edge sampling)or compatible. The first LVDS port(RxOxxx)transmots odd pixels while the second LVDS port(RxExxxx)transmits even pixels. Note : Input signals of odd and even clock shall be the same timing. --13-- L70S Technical Service Manual PIN # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 SIGNAL NAME RxO0- RxO0+ RxO1- RxO1+ RxO2- RxO2+ GND RxOC- RxOC+ RxO3- RxO3+ RxE0- RxE0+ GND RxE1- RxE1+ GND RxE2- RxE2+ RxEC- RxEC+ RxE3- RxE3+ GND NC NC NC POWER POWER POWER DESCRIPTION Negative LVDS differential data input (odd data) Positive LVDS differential data input (odd data) Negative LVDS differential data input (odd data) Positive LVDS differential data input (odd data) Negative LVDS differential data input (odd data, H-Sync, V-Sync,DSPTMG) Positive LVDS differential data input (odd data, H-Sync, V-Sync,DSPTMG) Power Ground Negative LVDS differential clock input (odd clock) Positive LVDS differential clock input (odd clock) Negative LVDS differential data input (odd data) Positive LVDS differential data input (odd data) Negative LVDS differential data input (Even clock) Positive LVDS differential data input (Even data) Power Ground Positive LVDS differential data input (Even data) Negative LVDS differential data input (Even data) Power Ground Negative LVDS differential data input (Even data) Positive LVDS differential data input (Even data) Negative LVDS differential clock input (Even clock) Positive LVDS differential clock input (Even clock) Negative LVDS differential data input (Even data) Positive LVDS differential data input (Even data) Power Ground - - - Power Power Power LVDS DATA Name DSP V-S H-S DESCRIPTION Display Timing : When the signal is high, the pixel data shall be valid to be displayed Vertical Sync : Both Positive and Negative polarity are acceptable Horizontal Sync : Both Positive and Negative polarity are acceptable --14-- GENERAL DESCRI PTION The MST9111 is a high performance, and fully integrated graphics processing IC solution for LCD monitors with resolutions up to SXGA. It is configured with an integrated triple-ADC/PLL, a high qualit scaling engine, an on-screen display controller, a built-in output clock generator, and LVDS displa interface. To further reduce system costs, the MST9111 also integrates intelligent power managemen control capability for green-mode requirements and spread-spectrum support for EMI management. FEATURES ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ High-quality zoom and shrink scaling engine (Compatible with VGA thru SXGA) Integrated 8-bit triple-ADC/PLL On-screen display controller (OSD) Support single-RGB inputs Built-in LVDS transmitter Support composite sync and SOG separator Programmable 10-bit gamma correction Integrated Brightness & Contrast control adjustment Support PWM backlit intensity control Support sRGB function Green PC and low EMI features Low standby power mode (< 5mA) High-Performance Scaling Engine Programmable shrink/zoom capabilities High-quality scaling for all VESA and IBM mode to fit screen Variable sharpness control Analog RGB Compliant Input Port Supports up to SXGA at 85Hz Supports Composite Sync and SOG (Sync-on-Green) separator Auto-Detection/Tune Auto input signal format (SOG, Composite, Separated HSYNC, VSYNC, and DE), and input mode (all VESA & IBM modes w/ resolution and polarity) detection Auto-tuning function including phasing, positioning, offset, gain, and jitter detection Smart screen-fitting On-Screen OSD Controller Built-in OSD generator with 226 character font programmable RAM Internal OSD rotation degree of 90 and 270 Gradient color function Pattern generator for production test Support OSD MUX and alpha blending capability LVDS Display Interface Dual pixel with max. output LVDS clock rate of 85 MHz Support 2 data output formats: Thine & TI data mappings Compatible with TIA/EIA With 6/8 bits options Reduced swing for LVDS for low EMI External Connection/Component Built-in DDC circuit MST9111 L70S Technical Service Manual PIN DIAGRAM --16-- Pin Name A0, A1 N.C. A2 Device Address inputs Vss Ground SDA Data I/O SCL Clock input WP Write Protect Vcc + 5 V or + 3 V 3.0 ABSOLUTE MAXIMUM RATINGS Storage Temperature................................-65°C to + 125°C Voltage with Respect to Ground.................-0.3 to + 6.5 V NOTE: These are STRESS rating only. Appropriate conditions for operating these devices given elsewhere may permanently damage the part. Prolonged exposure to maximum ratings may affect device reliability. 4.0 OPERATING CONDITIONS Temperature under bias: MTV24C08/24LC08.......0°C to + 70°C MTV24C08/24LC08-I.....-40°C to + 85°C VCC WP SCL SDA A0 A1 A2 VSS 1 2 3 4 5 6 7 8 24C08 or 24LC08 TSSOP VCC WP SCL SDA A0 A1 A2 VSS VCC WP SCL SDA A0 A1 A2 VSS 1 2 3 4 8 7 6 5 1 2 3 4 5 6 7 8 Dual-In-Line package SO package (M8) 24C08 or 24LC08 24C08 or 24LC08 24LC08 --17-- L70S Technical Service Manual 5.0 ELECTRICAL CHARACTERISTICS DC ELECTRICAL CHARACTERISTICS (Vcc =5V +/- 10% ,MTV24C08/24LC08° FVcc =3V +/- 10% ,24LC08) MTV24C08/ 24LC08 24LC08 Units Symbol Parameter Conditions Min Max Min Max ICC1 Operating Current (Program) SCL = 100KHZ CMOS Input Levels — 10 — 8 mA ICC2 Operating Current (Read) SCL = 100KHZ CMOS Input Levels — 2 — 2 mA ISB Standby Current SCL = SDA = 0 V — 10 — 10 µA IIL Input Leakage VIN = 0 V to VCC -1 +1 -1 +1 µA IOL Output Leakage VOUT = 0 V to Vcc -1 +1 -1 +1 µA VIL Input Low Voltage -0.1 0.8 -0.1 0.15 VCC V VIH Input High Voltage 2 VCC +0.2 0.8VCC VCC+0.2 V VOL1 Output Low Voltage IOL = 2.1mA TTL — 0.4 — 0.4 V VOH1 Output High Voltage IOH = -400uA TTL 2.4 — 2.4 — V VOL2 Output Low Voltage IOL = 10uA CMOS — 0.2 — 0.2 V VOH2 Output High Voltage IOH = -10uA CMOS VCC-0.2 — VCC-0.2 — V VLK VCC Lockout Voltage Programming Command Can Be Executed Default — Default — V 6.0 SWITCHING CHACTERISTICS (Under Operating Conditions ) AC ELECTRICAL CHARACTERISTICS (Vcc =5V +/- 10% , MTV24C08° FVcc =3V +/- 10% ,24LC08) (Vcc =5V +/- 10% , MTV24C08 Fast Mode) MTV24C08/ 24LC08 MTV24C08 (Fast Mode) Parameter Symbol Min Max Min Max Units Clock frequency Fscl 0 100 — 400 kHz Clock high time Thigh 4000 — 600 — ns Clock low time Tlow 4700 — 1200 — ns SDA and SCL rise time Tr — 1000 — 300 ns SDA and SCL fall time Tf — 300 — 300 ns START condition hold time Thd:Sta 4000 — 600 — ns START condition setup time Tsu:Sta 4700 — 600 — ns Data input hold time Thd:Dat 0 — 0 — ns Data input setup time Tsu:Dat 250 — 100 — ns STOP condition setup time Tsu:Sto 4000 — 600 — ns Output valid from clock Taa 300 3500 100 900 ns Bus free time Tbuf 4700 — 1200 — ns Data out hold time Tdh 300 — 50 — ns Input filter spike suppression (SDA and SCL pins) Tsp — 100 — 50 ns Write cycle time Twr — 10 — 10 ms --18-- CAPACITANCE TA= 25∞C , f=250KHZ Symbol Parameter Max Units CO UT Output capacitance 5 pF CIN Input capacitance 5 pF A. C. Conditions of Test Input Pulse Levels Vcc x 0.1 to Vcc x 0.9 Input Rise and Fall times 10 ns Input and Output Timming level Vcc x 0.5 Output Load 1 TTL Gate and CL = 100pf --19-- L70S Technical Service Manual Features •� Low dropout voltage •� Load regulation: 0.05% typical •� Trimmed current limit •� On-chip thermal limiting •� Standard SOT-223, TO-263, and TO-252 packages •� Three-terminal adjustable or fixed 2.5V, 2.85V, 3.3V, 5V Applications •� Active SCSI terminators •� High efficiency linear regulators •� Post regulators for switching supplies •� Battery chargers •� 5V to 3.3V linear regulators •� Motherboard clock supplies Description The RC1117 and RC1117-2.5, -2.85, -3.3 and -5 are low dropout three-terminal regulators with 1A output current capability. These devices have been optimized for low voltage where transient response and minimum input voltage are critical. The 2.85V version is designed specifically to be used in Active Terminators for SCSI bus. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the quiescent current of the RC1117 flows into the load, increasing efficiency. The RC1117 series regulators are available in the industry- standard SOT-223, TO-263 (D2PAK), and TO-252 (DPAK) power packages. Typical Applications VIN = 3.3V VIN VOUT ADJ 1.5V at 1A RC1117 10 F 2 2 F R1 124 R2 24.9 VIN = 5V VIN VOUT GND 2.85V at 1A RC1117-2.85 10 F + + + + 22 F VOUT = VREF(1 + R2/R1) + IAdj • R2 RC1117 1A Adjustable/Fixed Low Dropout Linear Regulator RC1117X2.5 --20-- Pin Assignments *With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane., JA can vary from 30°C/W to more than 50°C/W. Other mounting techniques may provide better thermal resistance than 30°C/W. Absolute Maximum Ratings Parameter Min. Max. Unit VIN 7.5 V Operating Junction Temperature Range 0 125 C Storage Temperature Range -65 150 C Lead Temperature (Soldering, 10 sec.) 300 C Front View 4-Lead Plastic SOT-223 JC = 15 C/W* 3-Lead Plastic TO-252 JC = 3 C/W* Tab is VOUT Tab is VOUT 1 ADJ/ GND IN 2 3 3-Lead Plastic TO-263 JC = 3 C/W* Tab is VOUT 1 ADJ/ GND IN OUT 2 3 3 2 1 IN OUT ADJ/GND --21-- L70S Technical Service Manual Electrical Characteristics Operating Conditions: VIN 7V, TJ = 25°�C unless otherwise specifi�ed. The denotes specifi�cations which apply over the specifi�ed operating temperature range. Notes: 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. 2. Line and load regulation are guaranteed up to the maximum power dissipation (18W). Power dissipation is determined by input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/ output voltage range. 3. RC1117 only. Parameter Conditions Min. Typ. Max. Units Reference Voltage, VREF 3 1.5V (VIN - VOUT) 5.75V, 10mA IOUT 1A 1.225 (-2%) 1.250 1.275 (+2%) V Output Voltage 10mA IOUT 1A RC1117-2.5, 4V VIN 7V RC1117-2.85, 4.35V VIN 7V RC1117-3.3, 4.8V VIN 7V RC1117-5, 6.5V VIN 7V 2.450 2.793 3.234 4.900 2.5 2.85 3.3 5.0 2.550 2.907 3.366 5.100 V V V V Line Regulation1,2 (VOUT + 1.5V) VIN 7V, IOUT = 10mA 0.005 0.2 % Load Regulation1,2 (VIN –� VOUT) = 2V, 10mA IOUT 1A 0.05 0.5 % Dropout Voltage VREF = 1%, IOUT = 1A 1.100 1.200 V Current Limit (VIN –� VOUT) = 2V 1.1 1.5 A Adjust Pin Current, IAdj 3 35 120 A Adjust Pin Current Change3 1.5V (VIN –� VOUT) 5.75, 10mA IOUT 1A 0.2 5 A Minimum Load Current 1.5V (VIN –� VOUT) 5.75 10 mA Quiescent Current VIN = VOUT + 1.25V 4 13 mA Ripple Rejection f = 120Hz, COUT = 22 F Tantalum, (VIN –� VOUT) = 3V, IOUT = 1A 60 72 dB Thermal Regulation TA = 25 C, 30ms pulse 0.004 0.02 %/W Temperature Stability 0.5 % Long-Term Stability TA = 125 C, 1000hrs. 0.03 1.0 % RMS Output Noise (% of VOUT) TA = 25 C, 10Hz f 10kHz 0.003 % Thermal Resistance, Junction to Case SOT-223 15 C/W TO-252, TO-263 3 C/W Thermal Shutdown Junction Temperature 155 C Thermal Shutdown Hysteresis 10 C --22-- RC1117-3.3 Features •� Low dropout voltage •� Load regulation: 0.05% typical •� Trimmed current limit •� On-chip thermal limiting •� Standard SOT-223, TO-263, and TO-252 packages •� Three-terminal adjustable or fixed 2.5V, 2.85V, 3.3V, 5V Applications •� Active SCSI terminators •� High efficiency linear regulators •� Post regulators for switching supplies •� Battery chargers •� 5V to 3.3V linear regulators •� Motherboard clock supplies Description The RC1117 and RC1117-2.5, -2.85, -3.3 and -5 are low dropout three-terminal regulators with 1A output current capability. These devices have been optimized for low voltage where transient response and minimum input voltage are critical. The 2.85V version is designed specifically to be used in Active Terminators for SCSI bus. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the quiescent current of the RC1117 flows into the load, increasing efficiency. The RC1117 series regulators are available in the industry- standard SOT-223, TO-263 (D2PAK), and TO-252 (DPAK) power packages. Typical Applications VIN = 3.3V VIN VOUT ADJ 1.5V at 1A RC1117 10 F 2 2 F R1 124 R2 24.9 VIN = 5V VIN VOUT GND 2.85V at 1A RC1117-2.85 10 F + + + + 22 F VOUT = VREF(1 + R2/R1) + IAdj • R2 1A Adjustable/Fixed Low Dropout Linear Regulator --23-- L70S Technical Service Manual Pin Assignments *With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane., JA can vary from 30°C/W to more than 50°C/W. Other mounting techniques may provide better thermal resistance than 30°C/W. Absolute Maximum Ratings Parameter Min. Max. Unit VIN 7.5 V Operating Junction Temperature Range 0 125 C Storage Temperature Range -65 150 C Lead Temperature (Soldering, 10 sec.) 300 C Front View 4-Lead Plastic SOT-223 JC = 15 C/W* 3-Lead Plastic TO-252 JC = 3 C/W* Tab is VOUT Tab is VOUT 1 ADJ/ GND IN 2 3 3-Lead Plastic TO-263 JC = 3 C/W* Tab is VOUT 1 ADJ/ GND IN OUT 2 3 3 2 1 IN OUT ADJ/GND --24-- Electrical Characteristics Operating Conditions: VIN 7V, TJ = 25°�C unless otherwise specifi�ed. The denotes specifi�cations which apply over the specifi�ed operating temperature range. Notes: 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. 2. Line and load regulation are guaranteed up to the maximum power dissipation (18W). Power dissipation is determined by input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/ output voltage range. 3. RC1117 only. Parameter Conditions Min. Typ. Max. Units Reference Voltage, VREF 3 1.5V (VIN - VOUT) 5.75V, 10mA IOUT 1A 1.225 (-2%) 1.250 1.275 (+2%) V Output Voltage 10mA IOUT 1A RC1117-2.5, 4V VIN 7V RC1117-2.85, 4.35V VIN 7V RC1117-3.3, 4.8V VIN 7V RC1117-5, 6.5V VIN 7V 2.450 2.793 3.234 4.900 2.5 2.85 3.3 5.0 2.550 2.907 3.366 5.100 V V V V Line Regulation1,2 (VOUT + 1.5V) VIN 7V, IOUT = 10mA 0.005 0.2 % Load Regulation1,2 (VIN –� VOUT) = 2V, 10mA IOUT 1A 0.05 0.5 % Dropout Voltage VREF = 1%, IOUT = 1A 1.100 1.200 V Current Limit (VIN –� VOUT) = 2V 1.1 1.5 A Adjust Pin Current, IAdj 3 35 120 A Adjust Pin Current Change3 1.5V (VIN –� VOUT) 5.75, 10mA IOUT 1A 0.2 5 A Minimum Load Current 1.5V (VIN –� VOUT) 5.75 10 mA Quiescent Current VIN = VOUT + 1.25V 4 13 mA Ripple Rejection f = 120Hz, COUT = 22 F Tantalum, (VIN –� VOUT) = 3V, IOUT = 1A 60 72 dB Thermal Regulation TA = 25 C, 30ms pulse 0.004 0.02 %/W Temperature Stability 0.5 % Long-Term Stability TA = 125 C, 1000hrs. 0.03 1.0 % RMS Output Noise (% of VOUT) TA = 25 C, 10Hz f 10kHz 0.003 % Thermal Resistance, Junction to Case SOT-223 15 C/W TO-252, TO-263 3 C/W Thermal Shutdown Junction Temperature 155 C Thermal Shutdown Hysteresis 10 C --25-- L70S Technical Service Manual SI4435 Parameter Max. Units VDS Drain- Source Voltage -30 V ID @ TA = 25∞C Continuous Drain Current, VGS @ -10V -8.0 ID @ TA= 70∞C Continuous Drain Current, VGS @ -10V -6.4 A IDM Pulsed Drain Current Å -50 PD @TA = 25∞C Power Dissipation 2.5 PD @TA = 70∞C Power Dissipation 1.6 Linear Derating Factor 0.02 W/ C VGS Gate-to-Source Voltage ± 20 V TJ, TSTG Junction and Storage Temperature Range -55 to + 150 C Parameter Max. Units RθJA Maximum Junction-to-AmbientÉ 50 C/W Thermal Resistance Absolute Maximum Ratings W Si4435DY HEXFETÆ� Power MOSFET These P-channel HEXFETÆ� Power MOSFETs from International Rectifier utilize advanced processing techniques to achieve the extremely low on-resistance per silicon area. This benefit provides the designer with an extremely efficient device for use in battery and load management applications.. The SO-8 has been modified through a customized leadframe for enhanced thermal characteristics and multiple-die capability making it ideal in a variety of power applications. With these improvements, multiple devices can be used in an application with dramatically reduced board space. The package is designed for vapor phase, infrared, or wave soldering techniques. VDSS = -30V RDS(on) = 0.020Ω Description Ultra Low On-Resistance P-Channel MOSFET Surface Mount Available in Tape & Reel PD- 93768A Top View 8 1 2 3 4 5 6 7 D D D G S A D S S SO-8 - - - - o o o --26-- Si4435DY Parameter Min. Typ. Max. Units Conditions IS Continuous Source Current MOSFET symbol (Body Diode) showing the ISM Pulsed Source Current integral reverse (Body Diode) Å p-n junction diode. VSD Diode Forward Voltage ñññ� ñññ� -1.2 V TJ = 25∞C, IS = -2.5A, VGS = 0V Ç trr Reverse Recovery Time ñ�ñ�ñ� 34 51 ns TJ = 25∞C, IF = -2.5A Qrr Reverse Recovery Charge ñ�ñ�ñ� 33 50 nC di/dt = -100A/µs Ç Source-Drain Ratings and Characteristics A -50 ñññ� ñññ� ñññ� -2.5 ñññ� S D G Å Repetitive rating; pulse width limited by max. junction temperature. Notes: Ç Pulse width ≤ 300µs; duty cycle ≤ 2%. É Surface mounted on FR-4 board, t ≤ 5sec. Parameter Min. Typ. Max. Units Conditions V(BR)DSS Drain-to-Source Breakdown Voltage -30 ñ�ñ�ñ� ñ�ñ�ñ� V VGS = 0V, ID = -250µA ∆V(BR)DSS/∆TJ Breakdown Voltage Temp. Coefficient ñ�ñ�ñ� -0.019 ñ�ñ�ñ� V/∞C Reference to 25∞C, ID = -1mA ñññ� 0.015 0.020 VGS = -10V, ID = -8.0A Ç ñññ� 0.026 0.035 VGS = -4.5V, ID = -5.0A Ç VGS(th) Gate Threshold Voltage -1.0 ñññ� ñññ� V VDS = VGS, ID = -250µA gfs Forward Transconductance ñ�ñ�ñ� 11 ñ�ñ�ñ� S VDS = -15V, ID = -8.0A ñññ� ñññ� -10 VDS = -24V, VGS = 0V ñññ� ñññ� -10 VDS = -15V, VGS = 0V, TJ = 70∞C Gate-to-Source Forward Leakage ñññ� ñññ� -100 VGS = -20V Gate-to-Source Reverse Leakage ñ�ñ�ñ� ñ�ñ�ñ� 100 VGS = 20V Qg Total Gate Charge ñ�ñ�ñ� 40 60 ID = -4.6A Qgs Gate-to-Source Charge ñ�ñ�ñ� 7.1 ñ�ñ�ñ� nC VDS = -15V Qgd Gate-to-Drain ("Miller") Charge ñ�ñ�ñ� 8.0 ñ�ñ�ñ� VGS = -10V Ç td(on) Turn-On Delay Time ñ�ñ�ñ� 16 24 VDD = -15V, VGS = -10V Ç tr Rise Time ñññ� 76 110 ID = -1.0A td(off) Turn-Off Delay Time ñ�ñ�ñ� 130 200 RG = 6.0Ω tf Fall Time ñññ� 90 140 RD = 15Ω Ciss Input Capacitance ñ�ñ�ñ� 2320 ñ�ñ�ñ� VGS = 0V Coss Output Capacitance ñ�ñ�ñ� 390 ñ�ñ�ñ� pF VDS = -15V Crss Reverse Transfer Capacitance ñ�ñ�ñ� 270 ñ�ñ�ñ� É = 1.0kHz Electrical Characteristics @ TJ = 25∞C (unless otherwise specified) IGSS µA Ω RDS(on) Static Drain-to-Source On-Resistance IDSS Drain-to-Source Leakage Current nA ns --27-- L70S Technical Service Manual TDA7496L 2W+2W OUTPUT POWER RL = 8Ω @THD = 10% VCC = 14V ST-BY AND MUTE FUNCTIONS LOW TURN-ON TURN-OFF POP NOISE LINEAR VOLUME CONTROL DC COUPLED WITH POWER OP. AMP. NO BOUCHEROT CELL NO ST-BY RC INPUT NETWORK SINGLE SUPPLY RANGING UP TO 15V SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION INTERNALLY FIXED GAIN SOFT CLIPPING VARIABLE OUTPUT AFTER VOLUME CON- TROL CIRCUIT POWERDIP (14+3+3) PACKAGE DESCRIPTION The TDA7496L is a stereo 2W+2W class AB power amplifier assembled in the @ Powerdip 14+3+3 package, specially designed for high quality sound, TV and Monitor applications. Features of the TDA7496L include linear volume control, Stand-by and mute functions. VOLUME OP AMP + - MUTE/STBY PROTECTIONS 9 470nF INR 30K VOLUME OP AMP + - 30K 1000µF 1000µF 1µF 10K 4 470nF INL 7 14 11 12 17 6 5 300K 100nF VOLUME VAROUT_L OUTR STBY MUTE OUTL 1,2,3,13, 18,19,20 GND 470µF SVR 10 D97AU596A VS VAROUT_R 15,16 +5V S1 ST-BY +5V S2 MUTE +5V S_GND 60K BLOCK DIAGRAM Powerdip (14+3+3) ORDERING NUMBER: TDA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL --28-- GND GND GND INL VAROUT_L VAROUT_R VOLUME N.C. INR 1 3 2 4 5 6 7 8 9 MUTE GND OUTR VS VS OUTL GND GND GND 20 19 18 17 16 14 15 13 12 D97AU597A SVR 10 STBY 11 PIN CONNECTION THERMAL DATA Symbol Parameter Value Unit Rth j-pins Thermal Resistance Junction-pins max. 15 ∞�C/W Rth j-amb (*) Thermal Resistance Junction-ambient max. 50 ∞�C/W (*) Mounted on PCB with no heatsink ELECTRICAL CHARACTERISTICS (Refer to the test circuit VS = 14V; RL = 8Ω, Rg = 50Ω, Tamb = 25∞�C). Symbol Parameter Test Condition Min. Typ. Max. Unit VS Supply Voltage Range 10 18 V Iq Total Quiescent Current 25 50 mA DCVOS Output DC Offset Referred to SVR Potenial No Input Signal 200 mV VO Quiescent Output Voltage 7 V PO Output Power THD = 10%; RL = 8Ω; 1 .6 2 W THD = 1%; RL = 8Ω; 1 .3 W THD Total Harmonic Distortion GV = 30dB; PO = 1W; f = 1KHz; 0.4 % Ipeak Output Peak Current (internally limited) 0.7 0.9 A Vin Input Signal 2.8 Vrms GV Closed Loop Gain Vol Ctrl > 4.5V 28.5 30 31.5 dB GvLine Monitor Out Gain Vol Ctrl > 4.5V; Zload > 30KΩ -1.5 0 1.5 dB AMin VOL Attenuation at Minimum Volume Vol Ctrl < 0.5V 80 dB BW 0.6 MHz ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS DC Supply Voltage 26 V VIN Maximum Input Voltage 8 Vpp Ptot Total Power Dissipation (Tcase = 60∞�C) 6 W Tamb Ambient Operating Temperature 0 to 70 ∞�C Tstg, Tj Storage and Junction Temperature -40 to 150 ∞�C V6 Volume CTRL DC voltage 7 V 0 4 8 12 Area(cm2) 30 40 50 60 Rthj-a (∞C/W) D97AU675 COPPER AREA 35µ THICKNESS PC BOARD Rth with "on board" Square Heatsink vs. cop- per area. --29-- L70S Technical Service Manual ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit eN Total Output Noise f = 20Hz to 22KHz Play, max volume 500 800 µV f = 20Hz to 22KHz Play, max attenuation 100 250 µV f = 20Hz to 22KHz Mute 60 150 µV SR Slew Rate 5 8 V/µs Ri Input Resistance 22.5 30 KΩ RVar Out Variable Output Resistance 30 100 Ω Rload Var Out Variable Output Load 2 KΩ SVR Supply Voltage Rejection f = 1kHz; max volume CSVR = 470µF; VRIP = 1Vrms 35 39 dB f = 1kHz; max attenuation CSVR = 470µF; VRIP =1Vrms 55 65 dB TM Thermal Muting 150 ∞�C Ts Thermal Shut-down 160 ∞�C MUTE STAND-BY & INPUT SELECTION FUNCTIONS VST ON Stand-by ON Threshold 3.5 V VST OFF Stand-by OFF Threshold 1.5 V VM ON Mute ON Threshold 3.5 V VM OFF Mute OFF Threshold 1.5 V IqST-BY Quiescent Current @ Stand-by 0.6 1 mA AMUTE Mute Attenuation 50 65 dB IstbyBIAS Stand-by bias current Stand by on VST-BY = 5V VMUTE = 5V 80 µA µA Play or Mute -20 -5 µA ImuteBIAS Mute bias current Mute 1 5 µA Play 0.2 2 µA APPLICATION SUGGESTIONS The recommended values of the external components are those shown on the application circuit of fig- ure 1A. Different values can be used, the following table can help the designer. COMPONENT SUGGESTION VALUE PURPOSE LARGER THAN SUGGESTION SMALLER THAN SUGGESTION R1 300K Volume control circuit Larger volume regulation time Smaller volume regulation time R2 10K Mute time constant Larger mute on/off time Smaller mute on/off time P1 50K Volume control circuit C1 1000µF Supply voltage bypass Danger of oscillation C2 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff C3 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff C4 470µF Ripple rejection Better SVR Worse SVR C5 100nF Volume control time costant Larger volume regulation time Smaller volume regulation time C6 1000µF Output DC decoupling Lower low frequency cutoff Higher low frequency cutoff C7 1µF Mute time costant Larger mute on/off time Smaller mute on/off time C8 1000µF Output DC decoupling Lower low frequency cutoff Higher low frequency cutoff C9 100nF Supply voltage bypass Danger of oscillation 5 5 4 4 3 3 2 2 1 1 D D C C B B A A BLOCK DIAGRAM MODEL NAME : L70S Scaler (MST 9111) Analog RGB 14.318Mhz Micro Controller WT61P4 24Mhz 17" LCD PANEL DUAL LVDS POWER & INVERTER AUDIO(TDA7496L) SPEAKER Image Quest Co., Ltd. BLOCK DIAGRAM L70S