RTC clock synchronization buffer driver delay chip

The MC14046B phase locked loop consists of two phase comparators, a voltage controlled oscillator (VCO), source follower and Zener diodes. These comparators have two common signal inputs PCAin and PCBin. The input PCAin can be used directly to couple large voltage signals, or indirectly (using a series capacitor) to couple small voltage signals. Self-biasing circuits condition small voltage signals in the linear region of the amplifier. Phase comparator 1 (dedicated OR gate) provides a digital error signal PC1out and maintains an intermediate frequency 90 phase shift between the PCAin and PCBin signals (both at 50% duty cycle). Phase comparator 2 (with leading-edge sensing logic) provides digital error signals PC2out and LD and maintains a 0-phase shift between the PCAin and PCBin signals (duty cycle is not important). This linear VCO produces an output signal VCOout whose frequency is determined by the voltage at the input VCOin and the capacitors and resistors connected to pins C1A, C1B, R1 and R2. For situations that require a VCOin flare that cannot tolerate loads, use a source follower with an external resistor to output SFout. The inhibit input, Inh, disables the VCO and source follower when high to minimize standby power consumption. Zener diodes can be used for power regulation. Applications include frequency modulation (FM) and FSK modulation and demodulation, frequency synthesis and multiplication, frequency identification, tone decoding, data synchronization and conditioning, voltage-to-frequency conversion, and motor speed control.

The NB3N3002 is a high accuracy, low phase glitch clock generator that supports PCI Express and Ethernet requirements. The device uses a 25 MHz fundamental mode parallel resonant crystal to generate differential HCSL outputs clocked at 25 MHz, 100 MHz, 125 MHz, or 200 MHz. The device is available in a narrow 5.0 mm x 4.4 mm TSSOP 16-pin package.

3-GHz 10-Output Differential Fanout Buffer/Level Shifter 48-WQFN -40 to 85

I2C serial real-time clock, the smallest I2C RTC in the industry, with two timing alarm clocks

Serial port, charging timing chip, working voltage: 2.0V-5.5V

CDCLVD1213 Low Jitter 1:4 General Purpose LVDS Buffer with Selectable Output Divider

I2C interface, built-in temperature compensation crystal oscillator, industrial temperature -40℃~85℃

LinCMOS process timer: extremely low power consumption - 1mw type can run in a stable mode at VDD = 5vd, CMOS output can swing on the rail, high output current capability - Sink 100ma type - source 10ma type output is fully compatible with CMOS , TTL and mossdlow supply current reduces peaks during output transitions, single supply operation from 2v to 15v

Built-in crystal oscillator, pin compatible with 3231, IIC interface, low power consumption at room temperature ±3.8PPM can compensate for the full temperature range, working voltage 2.7V-5.5V, working temperature -40°C-+85°C, built-in 70-byte register, 32.768HZ Square wave output, with charging function and battery voltage measurement function

High-precision real-time clock. Alarm, timer and interrupt functions. Built-in 32.768 kHz crystal.