What is MC34063?

Among so many electronic components, MC34063 is often used in the Switching Regulator. Below are its short descriptions.

The MC34063 is a monolithic control circuit containing all the active functions required for switching

        dc-to-dc converters (see Figure 1). The MC34063 includes the following components:

        *   Temperature-compensated reference voltage

        *   Oscillator

        *   Active peak-current limit

        *   Output switch

        *   Output voltage-sense comparator

The MC34063 was designed to be incorporated in buck, boost, or voltage-inverter converter applications.

        All these functions are contained in an 8-pin DIP or SOIC package.

Why You Need KIA7045AP

KIA7045AP is an electronic component which is used to accurately reset the system after detecting voltage at the time of switching power on and instantaneous power off in various CPU systems and other logic systems.

Below are its features:

1.    Current Consumption is Low. ICCL=300  A Typ. ICCH=30  A Typ.

2.    Resetting Output Minimum Guarantee Voltage is Low 0.8V Typ.

3.    Hysteresis Voltage is Provided. 50mV Typ.

Reset Signal Generation Starting Voltages :

KIA7019       1.9V Typ.       KIA7033       3.3V Typ.

KIA7021       2.1V Typ.       KIA7034       3.4V Typ.

KIA7023       2.3V Typ.       KIA7035       3.5V Typ.

KIA7025       2.5V Typ.       KIA7036       3.6V Typ.

KIA7027       2.7V Typ.       KIA7039       3.9V Typ.

KIA7029       2.9V Typ.       KIA7042       4.2V Typ.

KIA7031       3.1V Typ.       KIA7045       4.5V Typ.

KIA7032       3.2V Typ.

Taping Type is also Available.

What benefits can you take from KIA7045AP? Here are its applications as an IC component.

(1)  As Control Circuit of Battery-Backed Memory.

(2)  As Measure Against Erroneous Operations at Power ON-OFF.

(3)  As Measure Against System Runaway at Instantaneous Break of Power Supply etc.

(4)  As Resetting Function for the CPU-Mounted Equipment, such as Personal Computers, Printers, VTRs and so forth.

Features for YMU759B-QZE2

The electronic component YMU759B-QZE2 is a component of the YMU759 series. 


Following are features for this parts:

 FM synthesizer functions

1.       Tones

    FM synthesizer is capable of creating countless tones theoretically.

    When synthesizing tones, it is necessary to designate the number of operators to be used for the synthesis.

    Increasing the number of operators allows synthesis of tones that are more intricate and closer to those generated by natural musical instruments.

    YMU759 supports synthesis of tones of two types including 2-operator tones and 4-operator tones. Because operator's wave shape can be chosen from eight kinds, the quality of sound improves more remarkably than 2 operator sound of the MA-1 series. (A MA-1 series can choose operator wave shape from two kinds.)

2.       Number of voices simultaneously generated

YMU759 is equipped with 32 operators.

    The number of voices simultaneously generated varies depending on how many 2-operator tones and 4-operator tones are used.

When only 2-operator tones are used: up to 16 voices can be generated simultaneously.

When only 4-operator tones are used: up to 8 voices can be generated simultaneously.

3.       Compatible with stereophonic sound generation.

4.       Volume control

    Channel volume, master volume, expression, and pan pot control in individual channels

5.       Sequencer is built in.

6.       Can interpret Mobile Multimedia Format directly.

7.       Equipped with four systems of 96 FIFOs for sequence data

8.       Supports direct access that directly controls FM synthesizer.

9.       Supports key control with half an octave higher and lower.

        ADPCM reproduction function

1.       Equipped with ADPCM decoder with 4 bits, 1 channel

2.       Supports two kinds of sampling frequency, 4 kHz and 8 kHz.

3.       Sequencer is built in.

4.       Equipped with 348 byte FIFO for ADPCM data and 32 byte FIFO for sequence data

5.       Supports direct access that directly controls ADPCM section.

        Speaker amplifier and equalizer circuit

1.       Output of speaker amplifier: 550 mW when SPVDD=3.6 V, or 400 mW when SPVDD=3.0 V

2.       Balanced input speaker amplifier provides low ripple

3.       Built-in equalizer circuit corrects the difference of frequency response among the speakers and forms of bodies.

        Interface

1.       4 wire serial interface or 12 wire parallel interface can be selected.

      

 Others

1.       PLL is built-in to support master clock input in 2 MHz to 20 MHz range.

2.       Provided with a circuit for controlling on/off of LEDs and vibrator. These can be operated synchronous with the play data.

3.       Provided with a stereophonic analog output terminal for headphone

4.       16 bit stereophonic D/A converter is built in.

5.       Supports power down mode. (Typical current: 1 μA or less)

        Power supply voltage

1.       The power supply includes two power supply sub-systems, analog power supply devoted to speaker amplifier and power supply for other sections.

2.       The power supply for the speaker amplifier (SPVDD) supplies voltages in the range 2.7 V ~ 4.5 V (Typ 3.6 V), and other power supplies (VDD) voltages in the range 2.7 V ~ 3.3 V (Typ 3.0 V).

        32-pin plastic QFN.






More details on YMU759B-QZE2 please visit http://hqew.net.

The Electronic Component —— TEA2037A

Features Summary of TEA2037A

1.Direct line darlington drive

2.Direct frame-yoke drive (± 1a)

3.Composite video signal input capability

4.Frame output protection against short circuits

5.Pll

6.Horizontal oscillator frequency

7.Range from 15khz to 100khz

8.Vertical oscillator frequency

9.Range from 30hz to 120hz

10.Very few external components

11.Very low cost power package

The TEA2037A is an horizontal and vertical deflection circuit. It uses the same concept as TEA2117 but optimized for small screens, for a very low cost solution.

The TEA2037A performs all the video and power functions required to provide signals for the direct drive of the line darlington and frame yoke. It contains:

1.       Shunt regulator

2.       Synchronization separator

3.      An integrated frame separator without external components

4.      A saw-tooth generator for the frame

5.      A power amplifier for direct drive of frame yoke (short circuit protected)

6.      An open collector output for the line darlington drive

7．A line phase detector and a voltage control oscillator.

The slice level of sync-separation is fixed by value of the external resistors R₁ and R₂ . V_R is an internally fixed voltage. The sync-pulse allows the discharge of the capacitor by a 2 x 1 current. A line sync-pulse is not able to discharge the capacitor under VZ/2. A frame sync pulse permits the complete discharge of the capacitor, so during the frame sync-pulse Q3 andQ4 provide current for the other parts of the circuit.

More details about the electronic components please visit http://www.hqew.net.

Feats for Your Eyes: Pretty Electronic Components

In electronic engineers eyes, electronic components are all cold and boring. They won’t smile or cry and only stay by your side silently, in your pocket, on your bed, behind your Ipad screen, or in your ears( you’re wearing your earphone) whenever you are sitting in the subway or walking to work listening to your favorite song. Today let’s walk into their another world, a world full of feelings and funs, they will tell us life is much more fun than you'd ever thought.




They would sometimes be lost in thought.

They're also concerned with what Obamma gonna do 

They play golf when the weather is bright

There are also quarrels when circuits get short.

Sometimes they would dream to have an outer space travel

 But there are also down time they wanna to stay alone at the corner of one room.

Features for AT45DB321D-SU

Features for AT45DB321D-SU

1.       Single 2.7V - 3.6V Supply

2.       RapidS Serial Interface: 66 MHz Maximum Clock Frequency

-          SPI Compatible Modes 0 and 3

3.       User Configurable Page Size

-           512 Bytes per Page

-          528 Bytes per Page

4.       Page Program Operation

-          Intelligent Programming Operation

-          8,192 Pages (512/528 Bytes/Page) Main Memory

5.       Flexible Erase Options 

-          Page Erase (512 Bytes)

-          Block Erase (4 Kbytes) 

-          Sector Erase (64 Kbytes)

-          Chip Erase (32 Mbits)

6.       Two SRAM Data Buffers (512/528 Bytes)

-          Allows Receiving of Data while Reprogramming the Flash Array

7.       Continuous Read Capability through Entire Array

-          Ideal for Code Shadowing Applications

8.       Low-power Dissipation      

-          7 mA Active Read Current Typical

-          25 μA Standby Current Typical

-           5 μA Deep Power Down Typical

9.       Hardware and Software Data Protection Features

-          Individual Sector

10.   Sector Lockdown for Secure Code and Data Storage

-          64-byte User Programmable Space

-          Unique 64-byte Device Identifier

11.   JEDEC Standard Manufacturer and Device ID Read

12.   100,000 Program/Erase Cycles Per Page Minimum

13.   Data Retention – 20 Years

14.   Industrial Temperature Range

15.    Green (Pb/Halide-free/RoHS Compliant) Packaging Options


See the below picture for the pin configurations and pinouts: 




































More informations please visit http://www.hqew.net.

Detailed features of EL4581CSZ

EL4581CSZ is an electronic component which is often used as a working parking of capture video data. Below are some features for this product.

1.     NTSC, PAL and SECAM sync separation

2.     Single supply, +5V

3.     Precision 50% slicing, internal caps

4.     Built-in color burst filter

5.     Decodes non-standard verticals

6.     Pin compatible with LM1881

7.     Low power

8.     Typically 1.5mA supply current

9.     Resistor programmable scan rate

10.   Few external components

11.   Available in 8 Ld PDIP and SOIC packages

12.   Pb-free available (RoHS compliant)

What are the applications of EL4581CSZ:

Video special effects

Video test equipment

Video distribution

Displays

Imaging

Video data capture

Video triggers

What Place of B45196H3476M409 in Your Mobile Phone?

B45196H3476M409 is a electronic component which you can see in your mobile phones and your laptops. Let’s unveil such part that is providing service for your telecommunications.

What B45196H3476M409 looks:

Construction:

1.     Polar tantalum capacitors with solid

2.     Electrolyte

3.     Conventional TaMnO2 technology

4.     Flame-retardant plastic case (UL 94 V-0)

5.     Optionally tinned or gold-plated terminals

Features:

1.     Ultra-high volumetric efficiency

2.     Excellent solderability

3.     Stable temperature and frequency characteristics

4.     Low leakage current, low dissipation factor

5.     Low self-inductance

6.     High resistance to shock and vibration

7.     Suitable for use without series resistor (special operating conditions recommended

8.     Lead-free and material content compatible with RoHS

9.     Some partnumbers are only available in M (±20%) tolerance; these types have a maximum

10.   capacitance drift at +125 °C of +20%

What are B45196H3476M409’s applications:

1.     Telecommunications (e.g. mobile phones, infrastructure)

2.     Data processing (e.g. laptops, mainframes)

3.     Measuring and control engineering (e.g. voltage regulators)

4.     Automotive electronics (e.g. safety applications e.g airbags, ABS, motor management)

5.     Medical engineering

6.     DC/DC converters