ADI ADF4153ABCPZ

Дробный N-синтезатор (RF)ДаCMOS, TTLЧасы

Overview

The ADF4153ABCPZ is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. A sigma-delta (Σ-Δ) based fractional interpolator allows programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N divider (N = (INT + (FRAC/MOD))). In addition, the 4-bit reference counter (R counter) allows selectable REFIN frequencies at the PFD input. A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and a voltage controlled oscillator (VCO).

A simple 3-wire interface controls all on-chip registers. The device operates with a power supply ranging from 2.7 V to 3.3 V and can be powered down when not in use.

Features

Applications

• 1 Gigabit Ethernet
• 10 Gigabit Ethernet
• FPGA and processor clocks
• Line cards used in telephone exchange
• Fiber Channel
• PCI express cards
• Infotainment systems
• Medical equipment
• Multi-function printers
• Media broadcast servers