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  • High Resistance Operational AmplifierHigh Resistance Operational Amplifier2017/12/26CA3130 is an operational amplifier that combines the dual advantages of CMOS tube and bipolar transistor. Its input is PMOS transistor, which can provide very high input impedance, very low input curr...
  • What are the clock chips?What are the clock chips?2017/12/261. Parallel interfaceMAXIM-DALLAS DS12C887 series: including ds1302, ds1307, ds1337, pcf85632. Serial interface1) I2C interface: PCF8563 (Phlilps), PCF8583 (Phlilps), RX8025 (EPSON): they built-in cry...
  • The Study on the Development of Clock Chip Industry in ChinaThe Study on the Development of Clock Chip Industry in China2018/01/02Key content and summary.Market SizeMarket Size is the capacity of marrket, which means the overall size of target products or industry in this report. It often uses some indesex such as output value, ...
  • Brief Introduction about Several Clock ICBrief Introduction about Several Clock IC2018/01/02DS1302: DS1302 is a trickle charge clock IC launched by DALLAS company, USA. RAM 31 bytes adopts synchronous communication with CPU by SPI three line interface, automatic adjustment when less than 31 ...
  • Nonlinear Overcome of Photoelectric CouplerNonlinear Overcome of Photoelectric Coupler2017/12/26The input of the photoelectric coupler is the light-emitting diode. Therefore, its input characteristics can be represented by the volt ampere characteristic of the light-emitting diode. The output en...
  • Skilled and Magic Craftsmanship of Virtual Short Circuit and Virtual Circuit (1)Skilled and Magic Craftsmanship of Virtual Short Circuit and Virtual Circuit (1)2017/12/29Reverse amplifierThe same end grounded on picture1 is =0V, and the reverse and same end are virtual short circuit, so they are 0V, too. Reverse the input resistance is very high and virtual circuit. ...
  • The Study on the Development of Clock Chip Industry in China 2The Study on the Development of Clock Chip Industry in China 22018/01/02Market shares, also named market occupancy, means the proportion of sales(or value of sales) of a enterprise among its category in the market.Market shares is one of the most important indexes that en...
  • Overcome the Nonlinear of Photoelectric CouplerOvercome the Nonlinear of Photoelectric Coupler2017/12/29The input end of the photoelectric coupler is the light-emitting diode. Therefore, its input characteristics can be represented by the volt ampere characteristic of the light-emitting diode. Its outpu...
  • μa741 Operational Amplifierμa741 Operational Amplifier2017/12/29The μA741 operational amplifier, which is the first integrated operational amplifier in the world, is widely popular in the late 1960s. And it is still the typical component for explaining the princi...
  • Clock Chip SHT1302Clock Chip SHT13022018/01/02Features:* Operation voltage: 2.0V- 5.5V* When VDD = 2V, operation current < 400lA *VDD = 2V, static current < 100lA* Serial input clock frequency is maximum 500KHz at VDD = 2V, maximum 2MHz at VDD = 5V* Re...
  • Improve the Transmission Rate of Optoelectronic CouplerImprove the Transmission Rate of Optoelectronic Coupler2017/12/29When the control system is designed by using the decoupled digital signal, the transmission characteristics of the photoelectric coupler, namely the transmission rate, often becoming the determinants ...
  • Low Power Operational AmplifierLow Power Operational Amplifier2017/12/29Low power consumption type operational amplifier: it means that the power consumed during normal operation is lower than normal operation. The low power integrated operational amplifier has a very sma...
  • Real Time Clock - SD2068Real Time Clock - SD20682018/01/02Built-in IIC serial interface, multiple interrupt output, clock precision adjustment registerSD2068 is a real time clock chip with standard IIC interface. By the interface, CPU can read and write the ...
  • Structure and FeatureStructure and Feature2017/12/29The photoelectric coupler consists of two parts: the semiconductor emitter and the optical receiver assembled in the same closed shell. The emitter mostly can be photodiode. The optical receiver can b...
  • Today's Manufacturing Process and Circuit DesignToday's Manufacturing Process and Circuit Design2017/12/29Let's make a simple historical review of the amplifiers (such as LM709) that require external compensation and external disordered adjustment components. Most of these products are made by bipolar tec...
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