TRF3750: High Performance Integer-N PLL Frequency Synthesizer

The TRF3750 Frequency Synthesizer is ideal for designing the local Oscillator portion of Wireless transceivers by providing complete programmability and ultra-low phase noise. The device features a user-selectable dual-modulus prescaler, a 14-bit reference (R) divider, a 6-bit A, and a 13-bit B Counter The R divider allows the user to select the frequency of choice for the phase-frequency detector (PFD) circuit, and with the use of the Counters implement an N divider of value N = A + P B. With an extended charge-pump supply (VCP) of up to 8 V, a wide variety of external VCOs CAN be used to complete the phase-locked loop. Ultra-low phase noise and reference spur performance make the TRF3750 ideal for generating the local Oscillator in the most demanding Wireless applications.
By Texas Instruments