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LT5546EUF#TRPBF

厂商:
Linear
类别:
低功率收发器
包装:
-
封装:
QFN
无铅情况/ROHS:
无铅
描述:
40MHz to 500MHz VGA and I/Q Demod...

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  • 参数
  • 描述
  • 文档
参数 数值
Features VGA + 17MHz LPF
Min Frequency (MHz) 40
Max Frequency (MHz) 500
IIP3 (dB) -1
Noise Figure (dB) 7.8
LO Leakage (dB)
Isupply (mA) 24
Packages QFN-16
Supply Voltage Range 1.8V to 5.25V
Function Quadrature Demodulator
Applications GPS receivers, WLL, wireless broadband access, satellite receivers, 802.11 access points
Description 40MHz to 500MHz Quadrature Demodulator with VGA and 17MHz Baseband Filter
Extended Temp E
Featured no
Date Added 1984-01-01
Price 1k * $3.35 (LT5546EUF)
New no

特点
17MHz I/Q Lowpass Output Noise Filters
Wide Range 1.8V to 5.25V Supply Voltage
Frequency Range: 40MHz to 500MHz
THD < 0.14% (-57dBc) at 800mVP-P Differential Output Level
IF Overload Detector
Log Linear Gain Control Range: -7dB to 56dB
Baseband I/Q Amplitude Imbalance: 0.2dB
Baseband I/Q Phase Imbalance: 0.6°
7.8dB Noise Figure at Max Gain
Input IP3 at Low Gain: -1dBm
Low Supply Current: 24mA
Low Delay Shift Over Gain Control Range: 2ps/dB
Outputs Biased Up While in Standby
16-Lead QFN 4mm × 4mm Package with Exposed Pad

典型应用

典型应用

描述
The LT ? 5546 is a 40MHz to 500MHz monolithic integrated quadrature demodulator with variable gain amplifier (VGA) and 17MHz I/Q baseband bandwidth designed for low voltage operation. It supports standards that use a linear modulation format. The chip consists of a VGA, quadrature downconverting mixers and 17MHz lowpass noise filters (LPF). The LO port consists of a divide-by-two stage and LO buffers. The IC provides all building blocks for IF down-conversion to I and Q baseband signals with a single supply voltage of 1.8V to 5.25V. The VGA gain has a linear-in-dB relationship to the control input voltage. Hard-clipping amplifiers at the mixer outputs reduce the recovery time from a signal overload condition. The lowpass filters reduce the out-of-band noise and spurious frequency components. The -3dB corner frequency of the noise filters is approximately 17MHz and has a first order rolloff.? The standby mode provides reduced supply current and fast transient response into the normal operating mode when the I/Q outputs are AC-coupled to a baseband chip.

可靠性数据
文档名称 文档类型 软件 描述
LT5546EUF#TRPBFPDF下载 点击下载 点击下载 R068 Reliability Data
数据表 (英文)
文档名称 文档类型 软件 描述
LT5546EUF#TRPBFPDF下载 点击下载 点击下载 LT1330 - 5V RS232 Transceiver with 3V Logic Interface and One Receiver Active in Shutdown
产品选型卡
文档名称 文档类型 软件 描述
LT5546EUF#TRPBFPDF下载 点击下载 点击下载 RS232 Quick Guide
LT5546EUF#TRPBFPDF下载 点击下载 点击下载 LTM2882 - Isolated RS232 + 1W Power
设计要点 (英文)
文档名称 文档类型 软件 描述
LT5546EUF#TRPBFPDF下载 点击下载 点击下载 DN64 - RS232 Transceivers for Hand Held Computers Withstand 10kV ESD
LT5546EUF#TRPBFPDF下载 点击下载 点击下载 DN75 - RS232 Interface Circuits for 3.3V Systems
LT5546EUF#TRPBFPDF下载 点击下载 点击下载 DN71 - Regulator Circuit Generates Both 3.3V and 5V Outputs from 3.3V or 5V to Run Computers and RS232