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LT5572EUF

厂商:
Linear
类别:
I/Q调制器
包装:
-
封装:
QFN
无铅情况/ROHS:
-
描述:
1.5GHz to 2.5GHz High Linearity D...

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  • 参数
  • 描述
  • 文档
参数 数值
Features High Linearity Direct Quadrature Modulator
Min Frequency (MHz) 1500
Max Frequency (MHz) 2500
OIP3 (dB) 21.6
Noise Floor (dB) -158.6
LO Leakage (dB) -39.4
Isupply (mA) 120 (145)
Packages QFN-16
Applications Infrastructure Tx for DCS, PCS and UMTS Bands
Description 1.5GHz to 2.5GHz High Linearity Direct Quadrature Modulator
Function Quadrature Modulator
Image Supression (dB) -41.2
Supply Voltage Range 4.5V to 5.25V
Extended Temp E
Featured no
Date Added 1984-01-01
Price 1k * $4.95 (LT5572EUF)
New no

特点
Direct Conversion from Baseband to RF
High Output: –2.5dB Conversion Gain
High OIP3: +21.6dBm at 2GHz
Low Output Noise Floor at 20MHz Offset: ??No RF: –158.6dBm/Hz ??P OUT = 4dBm: –152.5dBm/Hz
Low Carrier Leakage: –39.4dBm at 2GHz
High Image Rejection: –41.2dBc at 2GHz
4-Channel W-CDMA ACPR: –67.7dBc at 2.14GHz
Integrated LO Buffer and LO Quadrature Phase Generator
50Ω AC-Coupled Single-Ended LO and RF Ports
High Impedance DC Interface to Baseband Inputs with 0.5V Common Mode Voltage
16-Lead QFN 4mm × 4mm Package

典型应用

典型应用

描述
描述 The LT5572 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 PHS, GSM, EDGE, TD-SCDMA, CDMA, CDMA2000, W-CDMA and other systems. It may also be con? gured as an image reject up-converting 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 double-balanced 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 four balanced I and Q baseband input ports are intended for DC coupling from a source with a common mode voltage level of about 0.5V. The LO path consists of an LO buffer with single-ended input and precision quadrature generators that 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
LT5572EUFPDF下载 点击下载 点击下载 RS232 Quick Guide
LT5572EUFPDF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
LT5572EUFPDF下载 点击下载 点击下载 May 2005 - Tiny RS232 Transceivers Run Directly from Alkaline, NiMH or NiCd Batteries
数据表 (英文)
文档名称 文档类型 软件 描述
LT5572EUFPDF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
产品新闻发布 (中文)
文档名称 文档类型 软件 描述
LT5572EUFPDF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
LT5572EUFPDF下载 点击下载 点击下载 Rugged RS-232 Transceivers Operate Down to 1.8V & Up to 1Mbps