TRF2056 Datasheet (Texas Instruments) - LOW-VOLTAGE 1.2-GHz FRACTIONAL-N/INTEGER-N SYNTHESIZER

TRF2056, LOW-VOLTAGE 1.2-GHz FRACTIONAL-N/INTEGER-N SYNTHESIZER

The TRF2056 device is a low-voltage, low-power consumption 1.2-GHz fractional-N/integer-N frequency synthesizer component for wireless applications.

Fractional-N division and an integral speed-up charge pump achieve rapid channel switching.

Two operating modes are available: 1) SA7025 emulation mode

TRF2056 LOWĆVOLTAGE 1.2ĆGHz FRACTIONALĆN/INTEGERĆN SYNTHESIZER D 1.2-GHz Operation D Two Operating Modes: Philips SA7025 Emulation Mode Terminal-for-Terminal and Programming Compatible Extended Performance Mode (EPM) D Dual RF-IF Phase-Locked Loops D Fractional-N or Integer-N Operation D Programmable EPM Fractional Modulus of 1 16 D Normal, Speed-Up, and Fractional Compensation Charge Pumps D Low-Power Consumption CLOCK DATA STROBE VSS RFIN RFIN VCCP REFIN RA AUXIN

TRF2056 Features

* including fractional accumulator modulos from 1 to 16 (compared to only 5 or 8 for the SA7025 synthesizer). The TRF2056 device provides external loop filters and all functions necessary for voltage-controlled oscillator (VCO) control in a dual phase-locked loop (PLL) frequency synthesizer system. A