TRF3761-J Datasheet | Texas Instruments

Features - 1 Fully Integrated VCO - Low Phase Noise: - 137d Bc/Hz (at 600k Hz, f VCO of 1.9GHz) - Low Noise Floor: - 158d Bc/Hz at 10MHz Offset - Integer-N PLL - Input Reference Frequency range: 10MHz to 104MHz - VCO Frequency Divided by 2-4 Output - Output Buffer Enable Pin - Programmable Charge Pump Current - Hardware and Software Power Down - 3-Wire Serial Interface - Single Supply: 4.5V to 5.25V Operation 2 Applications - Wireless Infrastructure - WCDMA, CDMA, GSM - Wideband Transceivers - Wireless Local Loop - RFID Transceivers - Clock generation - IF LO generation 3 Description TRF3761 is a family of high performance, highly integrated frequency synthesizers, optimized for high performance applications. The TRF3761 includes a low-noise, voltage-controlled oscillator (VCO) and an integer-N PLL. TRF3761 integrates divide-by 1, 2, or 4 options for a more flexible output frequency range. It is controlled through a 3-wire serial-programming-interface (SPI) interface. For power sensitive applications the TRF3761 can be powered down by the SPI interface or externally via chip_en pin 2. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TRF3761 TRF3761-x VQFN (40) 6.00 mm x 6.00 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. Application Schematic To Microcontroller REF C1 C4 1000 p F R2 C3 R1 C2 DVDD2 MUX_OUT REF_IN GND AVDD_REF AVDD_CP CPOUT GND AVDD...