CPC5622A, LITELINK III is a single package silicon telephone line interface (PLI) DAA for voice and data communication applications to connect between low voltage equipment and high voltage telephone network. LITELINK also provides AC and DC telephone line termination, switchhook, 2-wire to 4-wire hybrid, ringing detection, full-time receive on-hook transmission ca...
Read moredescribe The Z TL431 and ZTL432 are three-terminal adjustable shunt regulators with excellent temperature stability and output current handling capability up to 100 mA. By selecting two external divider resistors, the output voltage can be set to any selected voltage between 2.5 and 20 volts. These devices can be used as replacements for Zener diodes in many applications where improved ...
Read moreillustrate The ZXS C400 is a voltage mode boost converter in a SOT23-6 package. Its low feedback voltage enables the current in the LED chain to be precisely set. Monitor with a minimum loss resistor. Its excellent load and line regulation means that the LED current variation is typically less than 1% over the full supply range of the Li-Ion battery. Using high-efficiency Zete...
Read moreBoth the AD7417 and AD7418 are 10-bit, 4-channel and single-channel ADCs with an on-chip temperature sensor that can operate on a single 2.7 V to 5.5 V supply. The device contains a 15µs successive approximation converter, a 5-channel multiplexer, a temperature sensor, a clock oscillator, a sample-and-hold, and a reference (2.5 V). The AD7416 is only available in an 8-lead package ...
Read moreThe HCPL-788J isolation amplifier is designed for current sensing electronic motor drives. In a typical implementation, motor current flows through an external resistor and the resulting analog voltage drop is sensed by the HCPL-788J. The larger analog output voltage is generated on the other side of the optical isolation barrier of the HCPL-788J. The output voltage is proportio...
Read moreRecently, I encountered a problem of PCB leakage. The cause was a low-power product. The current of the whole machine was uA level. After being used for a period of time at room temperature, it was found that its power consumption increased, and the power consumption of individual prototypes even reached the mA level. After carefully eliminating the component problem, I finally found a...
Read moreWhen encountering things, it is necessary to divide it into two parts, and the crystal oscillator is no exception. The crystal oscillator stop vibration should be analyzed from different angles of internal and external reasons. Below we analyze the crystal oscillator stop vibration based on internal and external factors. Analysis of the Causes of Crystal Oscillation Stopping There are ma...
Read moreThe DF1704 is a high-performance stereo 8x oversampling digital interpolation filter designed for high-end consumer and professional audio applications. The DF1704 supports 24-bit, 96kHz operation and has user-programmable features including selectable filter responses, de-emphasis, attenuation and input/output data formats. The DF1704 is the ideal companion to the Texas Instruments (T...
Read moreThe BQ27541 Li-Ion Fuel Gauge is a microcontroller peripheral that provides a 96-byte non-volatile scratch pad fuel gauge for a single-cell Li-Ion battery pack. FLASH devices require almost no system microcontroller firmware The Impedance Track 8482 ; Technology BQ27541 in or within a battery pack - Model Battery Discharge Curve for System Boards with Embedded Batteries...
Read moreThe EL7532 is a synchronous integrated FET2A buck regulator with internal compensation. It works with an input voltage range of 2.5V~5.5V, suitable for 3.3V, 5V power supplies, or lithium-ion batteries. The output can be set externally via a resistive divider in the range of 0.8V to VIN. The main feature of EL7532 is PWM mode control. The typical value of its operating freq...
Read moreCD4040 is a 12-bit binary serial counter, all counter bits are master-slave flip-flops. The counter counts on the falling edge of the clock, and when CR is high, the counter is cleared. Due to the use of a Schmitt trigger on the clock input, there are no restrictions on pulse rise and fall times. All inputs and outputs are buffered. Figure 1 CD4040 pin diagram Pinout symbol: 10 feet: ...
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