HEF4046BP,652

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The HEF4046BP,652 is a highly efficient clock generator/timer IC developed by NXP Semiconductors. This device is designed to provide a wide range of clocking and timing functions, which makes it suitable for use in various applications, such as frequency synthesizers, PLLs, and clock generators. The HEF4046BP,652 is an 8-bit device with a selectable oscillator frequency range of 10 to 25 MHz. It contains a phase-locked loop (PLL) with two independent voltage-controlled-oscillators and three control outputs. The device is characterized by low power consumption, excellent stability, low jitter, and high accuracy.

HEF4046BP,652 provides multiple operating modes for producing clock signals: phase-lock, Burst frequency timing, frequency division, frequency synthesis, and phase detection. It contains two independent voltage-controlled oscillators (VCO), each of which can generate up to two frequencies at the same time. The phase-locked loop (PLL) can be used to synthesize a fixed frequency, a linear frequency sweep, or a sinusoidal frequency sweep. A phase-frequency detector (PFD) is also integrated into the device to provide synchronous phase and frequency detection. Additionally, the output of the frequency divisions can be switched to obtain clocking signals with different frequency characteristics.

The main application of the HEF4046BP,652 is in clock/timing circuits. It can be used for generating accurate clock signals in communications, microcontrollers, automotive electronics, and home appliances. The phase-locked loop in the device can be used to synthesize a desired frequency from a reference frequency or an externally supplied voltage signal. The HEF4046BP,652 can also be used for division, timing and frequency synthesis. In addition, it can be used for phase detection of multiple clock signals.

The basic working principle of HEF4046BP,652 involves the use of two voltage-controlled oscillators (VCOs). The VCOs are connected in series, and the output of one VCO serves as the reference frequency for the other VCO. The VCOs generate a square wave signal with a variable frequency. An oscillator is also included in the circuit and it produces a sinusoidal signal with a constant frequency, which is referred to as the reference frequency. This signal is then compared to the output of the second VCO to synchronize the oscillators. By varying the frequency of the reference signal, the frequency and phase of the second VCO can be adjusted.

The HEF4046BP,652 also contains a phase-frequency detector (PFD) and a low-pass filter (LPF). The PFD is used to detect the phase difference between the two oscillators, and the LPF is used to smooth the output of the PFD. The output of the PFD and LPF is then used to adjust the frequency and phase of the second VCO, thereby keeping the two oscillators in synchrony. If a fixed frequency or a linear frequency sweep is desired, then the output of the first VCO is fed back to the input of the same VCO, which produces a loop of a desired frequency.

Overall, the HEF4046BP,652 is a versatile, low power, and high accuracy device, which can be used in applications requiring clock signals with various characteristics. It is especially suitable for frequency synthesizers, PLLs, and clock generators, where accurate and low jitter clock signals are required.

The device is highly resilient against power supply variations and EMI, allowing it to operate in environments where conventional devices would fail. This makes it an ideal choice for use in applications requiring a wide range of clock signals with excellent stability, accuracy, and low jitter.

The specific data is subject to PDF, and the above content is for reference