Crystal diode The crystal diode commonly used “D” adds the digital presentation in the electric circuit, for example: D5 expressed that the serial number is 5 diodes.
Function: Diode's principal characteristic is the unilateral conductivity, is also under the direct voltage function, the breakover resistance is very small; But under reverse voltage function breakover resistance enormous or infinity. Positive Because the diode has the above characteristic, in the non-rope telephone often it uses, in the rectification, isolates, the constant voltage, the polar protection, DVB-T TUNER the encoded control, the frequency modulation modulation and static chirp and so on the electric circuits. In the telephone uses crystal
The body diode may divide into according to the function: Rectification diode (for example 1N4004), isolating diode (for example 1N4148), Short base diode (for example BAT85), light emitter diode, zener diode and so on. Inductor
Inductor in electronic manufacture, although uses is not many, but they are similarly important in the electric circuit. We thought that the inductor and the capacitor are the same, is also one kind of stored energy part, it can transform the electrical energy into the energy of magnetic field, and in magnetic field cumulative energy. The inductor uses mark L
The expression, its Fundamental unit is
Henry (H), the commonly used millihenry (mH) is a unit. It works
together frequently with the capacitor, constitutes the LC filter,
the LC oscillator and so on. Moreover, the people using the
inductance characteristic, have also made the choke coil, the
transformer, the relay and so on.
The integrated circuit is one kind uses the special craft, part
integrations and so on transistor, resistance, electric capacity
has certain function component which forms on the silicon
substrate, English for the abbreviation is IC, is also named the
chip.
The simulation integrated circuit is mainly refers to the analogous circuit which by parts and so on electric capacity, resistance,DVB-T MPEG 4 transistor is composed to integrate is using for to process the simulated signal together the integrated circuit. Many simulation integrated circuit, like the integration operational amplifier, the comparator, the logarithm and the index amplifier, the simulation while (eliminate) the Buddhist musical istrument, the phase-locked loop, the power source management chip and so on.
The simulation integrated circuit's compose largely electric circuit includes: Amplifier, filter, feedback circuit, datum source electric circuit, switch condenser network and so on. The simulation integrated circuit design is mainly carries on the manual electric circuit debugging through the experienced designer, the simulation obtains, corresponds the digital integrated circuit design majority with this is through uses the hardware to describe the language under the EDA software's control the automatic synthesis production.
The digital integrated circuit is the primary device and the segment integration the digital logic electric circuit which or the system makes on the identical semiconductor chip. Gate which or Yuan, component quantity contains according to the digital integrated circuit,DVB T RECEIVER may divide into the digital integrated circuit the small scale integration (SSI) electric circuit, the scale integration
The MSI electric circuit, the large scale integration (LSI) electric circuit, the ultra large scale integration VLSI electric circuit and the imperial scale integrate ULSI) the electric circuit. The small scale integration electric circuit contains the gate in 10, or the primary device number does not surpass 100; The medium scale integration contains gate between 10-100, or primary device number between 100-1000; The large scale integrated circuit contains gate above 100, or primary device number between 10-10; The ultra large scale integrated circuit contains gate above 10,000, or primary device number between 10-10;
Imperial scale integrated circuit's
primary device number between 10-10. It includes: Basic logical
gate, trigger, register, decoder, driver, counter, waveshaping
circuit, programmable logical component, microprocessor, monolithic
integrated circuit, DSP and so on.
