Harman Kardon DVD 38 Скачать руководство пользователя страница 137 | Manualshive

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Product Specification

Low Cost Green-Mode PWM Controller for Flyback Converters

SG6848

© System General Corp.

- 2 -

www.sg.com.tw

Version 1.2(IRO33.0010.B0)

May.06, 2003

MARKING DIAGRAMS

PIN CONFIGURATION

ORDERING INFORMATION

Part Number

PWM Frequency

Package

SG6848T 70kHz

6-Pin

SOT-26

SG6848D 70kHz

8-pin

DIP-8

PIN DESCRIPTIONS

Pin No.

Name

DIP-8 / (SOT-26)

Type Function

GATE

1 / (6)

Driver Output The totem-pole output driver for driving the power MOSFET.

VDD

2 / (5)

Supply

Power supply.

NC 3

NC

pin.

SENSE 4 / (4)

Analog Input

Current sense. This pin senses the voltage across a resistor. When the voltage reaches
the internal threshold, PWM output is disabled. This activates over-current protection.
This pin also provides current amplitude information for current-mode control.

RI

5 / (3)

Analog
Input/Output

A resistor connected from the RI pin to ground will generate a constant current source for
the SG6848. This current is used to charge an internal capacitor, to determine the
switching frequency. Increasing the resistance will reduce the amplitude of the current
source and reduce the switching frequency. A 95k

Ω

resistor R

i

results in a 50uA constant

current I

i

and a 70kHz switching frequency.

NC 6

NC

pin.

FB

7 / (2)

Analog Input

Feedback. The FB pin provides the output voltage regulation signal. It provides feedback
to the internal PWM comparator, so that the PWM comparator can control the duty cycle.

GND

8 / (1)

Supply

Ground.

M

: Mask Version

Y

: Year;

WW

: Work Week

1

2
3

4

5

6

SOT-26

GND

FB

RI

GATE

VDD

SENSE

1

M

A

YWW

XXXXXXX

: Wafer Lot

YY

: Year;

WW

: Week

V

: Assembly Location

8

1

SG6848D

XXXXXXXYYWWV

DIP-8

RI

NC

FB

GND

SENSE

NC

VDD

GATE

4

3

2

1

5

6

7

8

DVD38

harman/kardon

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Содержание DVD 38

Страница 1: ...11 INFORMATION DISPLAY 13 REAR PANEL CONNECTIONS 14 REMOTE CONTROL 16 CONNECTIONS SETUP 19 OPERATION 25 BASIC TROUBLESHOOTING GUIDE 38 EXPLODED VIEW 120v 40 BLOCK DIAGRAM 41 ELECTRICAL PARTS LIST 120...

Страница 2: ...beams may damage the eyes Absolutely never permit laser beams to enter the eyes Also NEVER switch ON the power to the laser output part lens etc of the pick up if it is damaged 5 Cleaning the lens sur...

Страница 3: ...component part first disconnect the power supply lead wire from the unit 2 All equipment measuring instruments and tools must be grounded 3 The workbench should be covered with a conductive sheet and...

Страница 4: ...e only a grounded tip soldering iron to solder or unsolder ESD devices 4 Use only an anti static solder removal device Some solder removal devices not classified as anti static can generate electrical...

Страница 5: ...x D 5 x 14 3 8 x 20 127mm x 365mmx 508mm Shipping Weight 8 8 lb 4kg Depth measurement includes knobs buttons and terminal connections Height measurement includes feet and chassis All features and spe...

Страница 6: ...JITTER 44 1kHz Normal 44 1kHz mUI CD Playback JITTER 96kHz Normal 96kHz mUI DVD Playback 2 COAXIAL OUT OUTPUT Level mV Normal CD or DVD Peak to Peak Level at 75ohm Lo Playback Measurement Item 5 9 04...

Страница 7: ...Hz 0dB 2dB 4MHz 0dB 2dB 5 8MHz 3dB 2dB Limit 0 5MHz 0dB Ref 0 1MHz 0dB 2dB 2MHz 0dB 2dB 3MHz 0dB 2dB 4MHz 0dB 2dB 5 8MHz 3dB 2dB Limit 0 5MHz 0dB Ref 0 1MHz 0dB 2dB 2MHz 0dB 2dB 3MHz 0dB 2dB 4MHz 0dB...

Страница 8: ...evel check before please setting the Black Level off in the set up menu 2 Video S N Raito Test 75 Terminated Limit Composite 65 0 dB S Video Y 65 0 dB Component Y 65 0 dB Component Pb 65 0 dB Componen...

Страница 9: ...B Tr 22 17Hz 0 1 0dB Tr 18 10KHz 0 1 0dB Tr 17 20KHz 0 2 0dB Tr 40 Infinity Zero 90dB Tr 39 60dB 85dB SW Level THD Track 38 30Hz Play SW Frequency Respones Track 55 31Hz 0dB Reference Track 54 61Hz Tr...

Страница 10: ...DVD 38 DVD 38 visit harmankardon com 10...

Страница 11: ...y pressing the forward or reverse Step or Skip Buttons on the remote The Disc Recognition function is not activated by Pause mode Stop Press once to stop play and enter Resume mode in which pressing P...

Страница 12: ...dby On Play Skip Search Reverse Remote IR Sensor Pause Skip Search Forward Open Close NOTE To make it easier to follow the instructions throughout the manual that refer to this illustration a copy of...

Страница 13: ...emote This indicator does not reflect the HDMI Mode setting Time Indicators These positions show the running time of a disc in play NOTE These positions will also display text messages about the DVD s...

Страница 14: ...o outputs to the same device NOTE The Coaxial Digital Output should only be connected to a digital input Even though it is the same RCA type connector as standard analog audio connections DO NOT conne...

Страница 15: ...Audio Output Composite Video Output 2 Channel Analog Audio Outputs 6 Channel Analog Audio Outputs NOTE To make it easier to follow the instructions throughout the manual that refer to this illustratio...

Страница 16: ...he tracks on a CD in random order Numeric Keys Use these buttons to directly enter a track or chapter number to skip to that section of the disc or to enter a password for the parental control system...

Страница 17: ...r Playlist Repeat A B Repeat Random Info Audio Mode Previous Step Skip Search Slow Reverse Angle Backlight System Setup Play Video Off Pause Navigation NOTE To make it easier to follow the instruc tio...

Страница 18: ...the AUDIO ADJUSTMENTS submenu to set the DVD 38 s bass management settings Stereo This mode is used when a 2 channel downmix of a multichannel audio signal is desired For example if you are playing a...

Страница 19: ...ly covered by a shutter to protect them from dust The shutter opens as the cable is inserted See Figure 2 Figure 2 Optical Digital Audio Due to the nature of digital signals as binary bits they aren t...

Страница 20: ...l audio jack or vice versa Both the chrominance color and luminance intensity components of the video signal are transmitted using a single cable See Figure 6 Figure 6 Composite Video S video or separ...

Страница 21: ...the optional Harman Kardon HE 1000 to the Remote IR Input jack If your receiver or any of your other components are equipped with a compatible remote IR input you may use the included 1 8 mini plug in...

Страница 22: ...nalog Audio Outputs See Figure 11 Figure 11 2 Channel Analog Audio Outputs NOTE The DVD 38 is capable of downmixing 5 1 channel materials to the two channel format but it is necessary to adjust the Ba...

Страница 23: ...m to play 96kHz discs when your receiver is not capable of processing 96kHz audio or if your receiver is not equipped with digital audio inputs then connect the DVD 38 s 2 Channel Analog Audio Outputs...

Страница 24: ...on from Standby mode a Press the Standby On Switch on the front panel or remote See Figure 16 Figure 16 Standby On Switch b Press the Open Close Button on the front panel or remote See Figure 17 Figur...

Страница 25: ...e is glue or a similar substance on the disc remove the glue completely before using the disc Do not expose the disc to direct sunlight or sources such as hot air ducts or leave it in a car parked in...

Страница 26: ...information and other relevant data will also appear in the Main Information Display Any time a control button is pressed an icon will appear in the upper right corner of the screen to indicate the p...

Страница 27: ...us or Skip Step Next button repeatedly Press the Pause or Play Button to resume normal play Frame by frame movement in reverse is not available NOTE Playback of a disc with 96kHz 24 bit audio requires...

Страница 28: ...y buttons or prohibit access to the Chapter Menu display during the playback of copyright notices studio logos movie credits or trailers Zoom The DVD 38 s advanced digital video processing circuits in...

Страница 29: ...your television Scan Type This line displays whether the video program on the DVD was recorded with a progressive or interlaced scan rate It also displays how the program is being played back based on...

Страница 30: ...udio language is set in the AUDIO SETUP menu To change the audio soundtrack press the Audio Select Button to display the Audio banner and show the current audio soundtrack configuration See Figure 39...

Страница 31: ...een See Figure 43 Press the Repeat Button again to cycle through the options Figure 43 Repeat Message Repeat 1 Repeats the DVD chapter or DVD Audio track currently being played until the disc is manua...

Страница 32: ...n the disc will appear Use the Navigation Buttons to scroll through the list Press the Enter Button or the Play Button while a track is highlighted to begin play Figure 47 Program Submenu PROGRAM Subm...

Страница 33: ...to take advantage of the capacity of the unit for unattended playback Repeat Program Repeats the current playlist if Programmed Order has been selected at the Playlist setting Repeat 1 Track For CDs V...

Страница 34: ...See Figure 51 Figure 51 Player Information Screen For WMA Disc This screen will display a list of the main folders contained on the disc The elapsed time will appear in the upper right corner of the...

Страница 35: ...red folder is selected Press the Enter Button to expand the folder navigate to the desired track and press the Enter or Play Button to begin play Only stereo audio playback is available for MP3 and WM...

Страница 36: ...e Stop Pause Track Skip Forward and Reverse Slow Forward and Reverse Step Forward and Reverse and Fast Forward and Reverse Search functions are all available depending on how the disc was encoded Howe...

Страница 37: ...e Navigation Button to move to Step P02 5 Continue entering the disc track numbers into the desired program step positions You need not do so in step order you may use the Navigation Buttons to naviga...

Страница 38: ...ge Video Output setting to desired type Disc does not play Disc loaded improperly Load disc label side up align the disc with the guides and place it in its proper position Incorrect disc type Check t...

Страница 39: ...or Stop play of disc and clear all displays from screen password has been forgotten Press and hold Clear Button until the display blinks This resets the password and all settings to their defaults You...

Страница 40: ...DVD38 harman kardon 40...

Страница 41: ...VFD CIG Type 13BT229GINK BUFFER 74HCT7007 SDRAM 64M M12L64164A7T Remote Sensor SYSTEM u COM ST72F324K2 8MHz OSC TRAVERSE UNIT SANYO PICK UP HD65 16M Bit FLASH u COM M29W160ET70N DV 345G RF SERVO ZR367...

Страница 42: ...562KC CAP CHIP CERAMIC 1608 5600p 5600PF KC 1608 1 EA C163 CCUS1H471JA CAP CHIP 470PF JA 1608 1 EA C164 CCUS1H104KC CAP CHIP 0 1UF ZF 1608 1 EA C165 CCUS1H104KC CAP CHIP 0 1UF ZF 1608 1 EA C166 CCUS1H...

Страница 43: ...0 CCUS1H150JA CAP CHIP 15PF 50V 15PF JA 1608 1 EA C252 CCUS1H104KC CAP CHIP 0 1UF ZF 1608 1 EA C253 CCUS1H104KC CAP CHIP 0 1UF ZF 1608 1 EA C254 CCUS1H272KC CAP CHIP 2700PF KC 1608 1 EA C255 CCUS1H104...

Страница 44: ...1608 1 EA C593 CCUS1H104KC CAP CHIP 0 1UF ZF 1608 1 EA C594 CCUS1H104KC CAP CHIP 0 1UF ZF 1608 1 EA C615 CCUS1H391JA CAP CHIP 390PF JA 1608 1 EA C617 CCUS1H104KC CAP CHIP 0 1UF ZF 1608 1 EA C620 CCUS1...

Страница 45: ...V 1 EA C226 CCEA1CH101T CAP ELECT 100UF 16V 1 EA C233 CCEA1CH101T CAP ELECT 100UF 16V 1 EA C241 CCEA1CH470T CAP ELECT 47UF 16V 1 EA C243 CCEA1CH470T CAP ELECT 47UF 16V 1 EA C251 CCEA1CH470T CAP ELECT...

Страница 46: ...P ELECT 470UF 10V 1 EA Semiconductors D101 HVDRLS4148SR DIODE SWITCHING SMD TYPE RLS4148 TE 11 1 EA D102 HVDRLS4148SR DIODE SWITCHING SMD TYPE RLS4148 TE 11 1 EA D501 HVDRLS4148SR DIODE SWITCHING SMD...

Страница 47: ...0 HVTKTD1304T TRANSISTOR CHIP MUTE KTD1304 1 EA Q611 HVTKTD1304T TRANSISTOR CHIP MUTE KTD1304 1 EA Q612 HVTKTD1304T TRANSISTOR CHIP MUTE KTD1304 1 EA Q613 HVTKTD1304T TRANSISTOR CHIP MUTE KTD1304 1 EA...

Страница 48: ...HM 1608 SIZE 1 EA R148 CRJ10DJ750T RES CHIP 75 OHM 1608 SIZE 1 EA R149 CRJ104DJ470T RES 4ARRAY 1608 4 47 OHM 1608X4 1 EA R150 CRJ104DJ470T RES 4ARRAY 1608 4 47 OHM 1608X4 1 EA R151 CRJ10DJ0R0T RES CHI...

Страница 49: ...A R220 CRJ10DJ562T RES CHIP 5 6K OHM 1608 SIZE 1 EA R221 CRJ10DJ562T RES CHIP 5 6K OHM 1608 SIZE 1 EA R222 CRJ10DJ562T RES CHIP 5 6K OHM 1608 SIZE 1 EA R230 CRJ10DJ472T RES CHIP 4 7K OHM 1608 SIZE 1 E...

Страница 50: ...HIP 4 7K OHM 1608 SIZE 1 EA R593 CRJ10DJ750T RES CHIP 75 OHM 1608 SIZE 1 EA R600 CRJ10DJ132T RES CHIP 1 3K OHM 1608 SIZE 1 EA R601 CRJ10DJ132T RES CHIP 1 3K OHM 1608 SIZE 1 EA R602 CRJ10DJ132T RES CHI...

Страница 51: ...10DJ132T RES CHIP 1 3K OHM 1608 SIZE 1 EA R680 CRJ10DJ132T RES CHIP 1 3K OHM 1608 SIZE 1 EA R681 CRJ10DJ132T RES CHIP 1 3K OHM 1608 SIZE 1 EA R685 CRJ10DJ101T RES CHIP 100 OHM 1608 SIZE 1 EA R686 CRJ1...

Страница 52: ...UCTOR CHIP 3225 SIZE 1 EA L106 HLQ06E100KRZ INDUCTOR CHIP 3225 SIZE 1 EA L107 HLQ06E100KRZ INDUCTOR CHIP 3225 SIZE 1 EA L109 HLZ9R001Z FB 2012 0805 600E 1 5A POWER 600E 1 5A 1 EA L110 HLZ9R001Z FB 201...

Страница 53: ...in connector 1 EA CN03 CJP07GA01ZY WAFER STRAIGHT 7PIN 7Pin connector 1 EA CN05 CJP15GB113ZY WAFER 15Pin connector 1 EA CN07 CJP06GA19ZY WAFER STRAIGHT DVD LOADER 6Pin connector 1 EA CN12 CJP05GA19ZY...

Страница 54: ...P KSA708Y 1 EA Q912 HVDMCR100 6ZL1G SCR ON SEMI DMCR100 6ZL1G 1 EA D901 HVD1N4007T DIODE 1N4007 1000V 1A 1 EA D902 HVD1N4007T DIODE 1N4007 1000V 1A 1 EA D903 HVD1N4007T DIODE 1N4007 1000V 1A 1 EA D904...

Страница 55: ...12GA19ZY WAFER 12Pin connector 1 EA NT91 KRT10D9MSFT THERMISTER 10D9M 1 EA LF91 CLZ9Z060Y LINE FILTER CLZ9Z060Y 1 EA L903 CLZ9Z040Y COIL CHOCK 6 8uH DR 6 5 7 5 1 EA L905 CLZ9Z040Y COIL CHOCK 6 8uH DR...

Страница 56: ...ion Qty MECHANICAL CWC1G2A24G250B CABLE CARD 1 EA CHG1A360 CUSHION FOOT 4 EA CHR301 CLAMPER 3 EA CJA523FBYA CORD POWER 1 EA CKF2A303X PANEL REAR DVD38 DVD38 1 EA CKL2A186H43 FOOT 4 EA CMX1A176 INSULAT...

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Страница 100: ...2L64164A is 67 108 864 bits synchronous high data rate Dynamic RAM organized as 4 x 1 048 576 words by 16 bits Synchronous design allows precise cycle controls with the use of system clock I O transac...

Страница 101: ...th RAS low Enables row access precharge CAS Column Address Strobe Latches column address on the positive going edge of the CLK with CAS low Enables column access WE Write Enable Enables write operatio...

Страница 102: ...RAS CAS and WE are high The SDRAM performs no operation NOP NOP does not initiate any new operation but is needed to complete operations which require more than single clock cycle like bank activate...

Страница 103: ...to keep the data output gapless The burst read can be terminated by issuing another burst read or burst write in the same bank or the other active bank or a precharge command to the same bank The burs...

Страница 104: ...ode CKE is high in the previous cycle The time required to complete the auto refresh operation is specified by tRFC min The minimum number of clock cycles required can be calculated by driving tRFC wi...

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Страница 106: ...sources and is routed to the four outputs The device provides true data Inputs can be driven from either 3 3 V or 5 V devices This feature allows the use of these devices as translators in a mixed 3...

Страница 107: ...ic symbol 2 1A 1 3 1B 5 2A 6 2B 11 3A 10 3B 14 4A 13 4B EN 15 G1 1 MUX 1 1Y 4 2Y 7 3Y 9 4Y 12 G A B This symbol is in accordance with ANSI IEEE Std 91 1984 and IEC Publication 617 12 logic diagram pos...

Страница 108: ...yp Low power dissipation ICC 2 PA Max TA 25qC Pin and function compatible with 74HC04 Ordering Code Surface mount packages are also available on Tape and Reel Specify by appending the suffix letter X...

Страница 109: ...direction DC motor driver for tray 2 Wide dynamic range 9 0V typ when Vcc1 Vcc2 12V at RL 20 load 3 Separating power of Vcc1 and Vcc2 is to improve power efficiency by a low supply voltage for tracki...

Страница 110: ...Should not exceed Pd or ASO and Tj 150 C values Guaranteed operating conditions Ta 25 C Parameter Symbol Limits Unit Vcc1 4 3 13 2 V Power supply voltage Vcc2 4 3 Vcc1 V Block diagram Actuator Driver...

Страница 111: ...ay driver output 10 VOTR Tray driver output 11 VOSL Sled driver output 12 VOSL Sled driver output 13 VOFC Focus driver output 14 VOFC Focus driver output 15 VOTK Tracking driver output 16 VOTK Trackin...

Страница 112: ...ically erasable and programmable read only memory EEPROM organized as 128 256 512 1024 2048 words of 8 bits each The device is optimized for use in many automotive applications where low power and low...

Страница 113: ...d in detail under the Device Addressing section The AT24C04 uses the A2 and A1 inputs for hard wire addressing and a total of four 4K devices may be addressed on a single bus system The A0 pin is a no...

Страница 114: ...with 16 pages of 8 bytes each the 1K requires a 7 bit data word address for random word addressing AT24C02 2K SERIAL EEPROM Internally organized with 32 pages of 8 bytes each the 2K requires an 8 bit...

Страница 115: ...nowledge that it has received each word This happens during the ninth clock cycle STANDBY MODE The AT24C01A 02 04 08A 16A features a low power standby mode which is enabled a upon power up and b after...

Страница 116: ...2 Driver 6ch Y C MIX and PY Pb Pr for progressive 3 Group delay difference between chroma signal and luminance signal is a small number of nsec 4 Drive 2 lines of each signal 5 Operating by 5V single...

Страница 117: ...18 17 23 1 5 6M BPF COUT CTRAP MUTE1 CIN GND GND YIN PYIN VCC GND VCC PbIN PYTRAP PrIN MUTE2 GND PrTRAP TEST MIXOUT MIXFB GND GND GND GND YTRAP YOUT PYOUT YFB PYFB PbOUT PrOUT N C MUTE1 TEST 20k 20k 6...

Страница 118: ...20IS 10 30 MAX 15 30 MAX 2 70 0 30 0 85 MAX 3 20 0 20 3 00 0 30 A B C D E F G 12 30 MAX 0 75 MAX H 13 60 0 50 3 90 MAX 1 20 1 30 2 54 4 50 0 20 6 80 2 60 0 20 10 J K L M N O P Q R F O Q 1 2 3 L P N B...

Страница 119: ...M O Q 25 1 25 1 50 0 10 MAX DEPTH 0 2 1 2 3 B A C Q K F F M M N N O H L J D C N G P H H E D H R S 12 50 0 50 R 1 00 S 1 15 MAX _ _ _ MAXIMUM RATINGS Ta 25 KIA79L05BP KIA79L24BP BIPOLAR LINEAR INTEGRAT...

Страница 120: ...surface illumination shall be irradiate 200 50lx under ordinary white fluorescence lamp without high frequency lightning 3 Standard transmitter Burst wave of standard transmitter shall be arranged to...

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Страница 122: ...s is available in LLP TO 263 SOT 223 TO 220 and TO 252 D PAK packages A minimum of 10 F tantalum capacitor is required at the output to improve the transient response and stability Features n Availabl...

Страница 123: ...iew TO 220 10091902 Top View TO 252 10091938 Top View TO 263 10091944 Top View 10091945 Side View LLP 10091946 When using the LLP package Pins 2 3 4 must be connected together and Pins 5 6 7 must be c...

Страница 124: ...bedded Byte Word Program algorithms ERASE SUSPEND and RESUME MODES Read and Program another Block during Erase Suspend UNLOCK BYPASS PROGRAM COMMAND Faster Production Batch Programming TEMPORARY BLOCK...

Страница 125: ...ent with JEDEC standards The blocks in the memory are asymmetrically ar ranged see Figures 5 and 6 Block Addresses The first or last 64 KBytes have been divided into four additional blocks The 16 KByt...

Страница 126: ...3 DQ9 DQ2 A6 DQ0 W A3 RB DQ6 A8 A9 DQ13 A17 A10 DQ14 A2 DQ12 DQ10 DQ15A 1 VCC DQ4 DQ5 A7 DQ7 NC NC AI06850 M29W160ET M29W160EB 12 1 13 24 25 36 37 48 DQ8 NC A19 A1 A18 A4 A5 DQ1 DQ11 G A12 A13 A16 A11...

Страница 127: ...mers Main Clock Controller with Real time base Beep and Clock out capabilities Configurable watchdog timer 16 bit Timer A with 1 input capture 1 output compare external clock input PWM and pulse gener...

Страница 128: ...The enhanced instruction set and addressing modes of the ST7 offer both power and flexibility to software developers enabling the design of highly efficient and compact application code In addition t...

Страница 129: ...26 25 24 23 12 13 14 15 16 17 18 19 20 21 22 1 2 3 4 5 6 7 8 9 10 11 ei2 ei3 ei0 ei1 PB3 HS PB4 AIN0 PD0 AIN1 PD1 AIN2 PD2 AIN3 PD3 AIN4 PD4 RDI PE1 PB0 PB1 PB2 PC6 SCK ICCCLK PC5 MOSI AIN14 PC4 MISO...

Страница 130: ...S PA7 HS VPP ICCSEL OSC2 OSC1 VDD_2 PE0 TDO PE1 RDI VSS_2 RESET ei0 ei3 ei2 ei1 eix associated external interrupt vector HS 8mA high sink capability ICCDATA MISO PC4 AIN14 MOSI PC5 ICCCLK SCK PC6 AIN1...

Страница 131: ...8 32 3 PD1 AIN1 I O CT X X X X X Port D1 ADC Analog Input 1 9 PD2 AIN2 I O CT X X X X X Port D2 ADC Analog Input 2 10 PD3 AIN3 I O CT X X X X X Port D3 ADC Analog Input 3 11 PD4 AIN4 I O CT X X X X X...

Страница 132: ...X Port A3 32 VDD_1 S Digital Main Supply Voltage 33 VSS_1 S Digital Ground Voltage 34 17 20 PA4 HS I O CT HS X X X X Port A4 35 PA5 HS I O CT HS X X X X Port A5 36 18 21 PA6 HS I O CT HS X T Port A6 1...

Страница 133: ...r or an external source to the on chip oscil lator see Section 1 INTRODUCTION and Section 12 5 CLOCK AND TIMING CHARACTERISTICS for more details 4 On the chip each I O port has 8 pads Pads that are no...

Страница 134: ...nd potential VCC With a Darlington transistor input stage this device exhibits high input resistance low input offset voltage and high gain The all npn output stage characterized by no dead band cross...

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Страница 136: ...power needs of low power SMPS To minimize standby power consumption the proprietary green mode function provides off time modulation to linearly decrease the switching frequency under light load condi...

Страница 137: ...ormation for current mode control RI 5 3 Analog Input Output A resistor connected from the RI pin to ground will generate a constant current source for the SG6848 This current is used to charge an int...

Страница 138: ...bol Parameter Value Unit VDD DC Supply Voltage Zener Clamp Zener Current 25 26 10 V V mA VFB Input Voltage to FB Pin 0 3 to 6 V V VSense Input Voltage to Sense Pin 0 3 to 6V V Pd Power Dissipation 300...

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Страница 140: ...Thu Apr 05 20 31 45 2007 DVD38 harman kardon 140...

Страница 141: ...atic sch 1 Wed Apr 04 17 18 53 2007 DVD47 ONLY DVD38 harman kardon 141...

Страница 142: ...tic sch 2 Wed Apr 04 17 26 38 2007 DVD38 harman kardon 142...

Страница 143: ...atic sch 3 Wed Apr 04 17 31 28 2007 DVD38 harman kardon 143...

Страница 144: ...M MP sch 1 Wed Apr 04 21 10 56 2007 DVD38 harman kardon 144...

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