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LT5558EUF#PBF

厂商:
Linear
类别:
I/Q调制器
包装:
-
封装:
QFN
无铅情况/ROHS:
无铅
描述:
600MHz to 1100MHz High Linearity ...

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  • 参数
  • 描述
  • 文档
参数 数值
Features High Linearity Direct Quadrature Modulator
Min Frequency (MHz) 600
Max Frequency (MHz) 1100
OIP3 (dB) 22.4
Noise Floor (dB) -158
LO Leakage (dB) -43.7
Isupply (mA) 108 (135)
Packages QFN-16
Applications Infrastructure TX for Cellular and ISM Bands
Description 600MHz to 1100MHz High Linearity Direct Quadrature Modulator
Function Quadrature Modulator
Image Supression (dB)
Supply Voltage Range 4.5V to 5.25V
Extended Temp E
Featured no
Date Added 1984-01-01
Price 1k * $5.35 (LT5558EUF)
New no

特点
Direct Conversion from Baseband to RF
High OIP3: + 22.4dBm at 900MHz
Low Output Noise Floor at 20MHz Offset: ??No RF: –158dBm/Hz ??P OUT = 4dBm: –152.7dBm/Hz
Low Carrier Leakage: –43.7dBm at 900MHz
High Image Rejection: –49dBc at 900MHz
3 Channel CDMA2000 ACPR: –70.4dBc at 900MHz
Integrated LO Buffer and LO Quadrature Phase Generator
50Ω AC-Coupled Single-ended LO and RF Ports
High Impedance Interface to Baseband Inputs with 2.1V Common Mode Voltage
16-Lead QFN 4mm × 4mm Package

典型应用

典型应用

描述
描述 The LT5558 is a direct I/Q modulator designed for high performance wireless applications, including wireless infrastructure. It allows direct modulation of an RF signal using differential baseband I and Q signals. It supports GSM, EDGE, CDMA, CDMA2000, and other systems. It may also be con? gured as an image reject upconverting mixer, by applying 90° phase-shifted signals to the I and Q inputs. The high impedance I/Q baseband inputs consist of voltage-to-current converters that in turn drive doublebalanced mixers. The outputs of these mixers are summed and applied to an on-chip RF transformer, which converts the differential mixer signals to a 50Ω single-ended output. The balanced I and Q baseband input ports are intended for DC coupling from a source with a common-mode voltage level of about 2.1V. The LO path consists of an LO buffer with single-ended input, and precision quadrature generators which produce the LO drive for the mixers. The supply voltage range is 4.5V to 5.25V.

产品选型卡
文档名称 文档类型 软件 描述
LT5558EUF#PBFPDF下载 点击下载 点击下载 RS232 Quick Guide
LT5558EUF#PBFPDF下载 点击下载 点击下载 LTM2882 - Isolated RS232 + 1W Power
LT Journal
文档名称 文档类型 软件 描述
LT5558EUF#PBFPDF下载 点击下载 点击下载 May 2005 - Tiny RS232 Transceivers Run Directly from Alkaline, NiMH or NiCd Batteries
产品新闻发布 (中文)
文档名称 文档类型 软件 描述
LT5558EUF#PBFPDF下载 点击下载 点击下载 坚固的 RS-232 收发器工作电压可低至 1.8V, 而数据速率可高达 1Mbps
产品新闻发布 (英文)
文档名称 文档类型 软件 描述
LT5558EUF#PBFPDF下载 点击下载 点击下载 Rugged RS-232 Transceivers Operate Down to 1.8V & Up to 1Mbps
数据表 (英文)
文档名称 文档类型 软件 描述
LT5558EUF#PBFPDF下载 点击下载 点击下载 LTC2801/ LTC2802/ LTC2803/ LTC2804 - 1.8V to 5.5V RS-232 Single and Dual Transceivers