MPC9239FA

MPC9239FA is a Frequency Synthesizer that is widely used for many applications related to Clock/Timing. It is known for its excellent phase noise performance due to its advanced Phase Locked Loop (PLL) architecture. The MPC9239FA works in conjunction with the MPC9243, a high speed 6-bit digital phase frequency detector (DFD), to achieve the desired output frequency. The MPC9239FA incorporates a pre-scaler, low pass filter and reference input buffer to achieve an exact output frequency.

The main application field of the MPC9239FA is digital modulation formats such as GSM. GSM, as well as other digital modulation formats, requires specific signals to be sent to the receiving station, in order to be successfully demodulated. The MPC9239FA provides a precise output frequency for this purpose, making sure the receiving station receives a signal with a consistent spectrum.

The working principle of the MPC9239FA is based on a PLL. It uses the PLL concept to keep the output frequency in sync with the reference frequency. To achieve this, the PLL measures the frequency of an external reference clock, compares it to a predetermined value, and adjusts the output frequency accordingly. The MPC9239FA is capable of operating at frequencies from 2kHz to 55MHz.

The MPC9239FA uses a 6-bit high speed digital phase frequency detector (DFD) to guarantee a fast frequency-hopping capability and to provide high accuracy even in the presence of high jitter. The outputs of the MPC9239FA are 4 digital and 3 analog outputs. The analog outputs are useful for applications like SAW-resonator driving.

Overall, the MPC9239FA is a highly versatile frequency synthesizer specifically designed for Clock/Timing applications. It uses advanced PLL architecture to provide a precise output frequency, while its 6-bit DFD guarantees an accurate frequency-hopping capability. This makes the device a great choice for digital modulation formats, such as GSM, as well as for other Clock/Timing applications.