MAX2045集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

General Description

The MAX2045/MAX2046/MAX2047 low-cost, fully integrated vector multipliers alter the magnitude and phase of an RF signal. Each device is optimized for the UMTS (MAX2045), DCS/PCS (MAX2046), or cellular/GSM (MAX2047) frequency bands. These devices feature differential RF inputs and outputs.

The MAX2045/MAX2046/MAX2047 provide vector adjustment through the differential I/Q amplifiers. The I/Q amplifiers can interface with voltage and/or current digital-to-analog converters (DACs). The voltage inputs are designed to interface to a voltage-mode DAC, while the current inputs are designed to interface to a current mode DAC. An internal 2.5V reference voltage is provided for applications using single-ended voltage DACs.

The MAX2045/MAX2046/MAX2047 operate from a 4.75V to 5.25V single supply. All devices are offered in a compact 5mm ✕ 5mm, 32-lead thin QFN exposed-paddle packages.

The MAX2045/MAX2046/MAX2047 evaluation kits are available, contact factory for availability.

特性 Features

♦ Multiple RF Frequency Bands of Operation

   2040MHz to 2240MHz (MAX2045)

   1740MHz to 2060MHz (MAX2046)

   790MHz to 1005MHz (MAX2047)

♦ ±0.2dB Gain Flatness

♦ ±1° Phase Flatness

♦ 3dB Control Bandwidth: 260MHz

♦ 15dBm Input IP3

♦ 15dB Gain Control Range

♦ Continuous 360° Phase Control Range

♦ 6.5dB Maximum Gain for Continuous Phase

♦ On-Chip Reference for Single-Ended

   Voltage-Mode Operation

♦ 800mW Power Consumption

♦ Space-Saving 5mm x 5mm Thin QFN Package

♦ Single 5V supply

Applications

   UMTS/PCS/DCS/Cellular/GSM Base Station

      Feed-Forward and Predistortion Power Amplifiers

   RF Magnitude and Phase Adjustment

   RF Cancellation Loops

   Beam-Forming Applications