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MAX9985

更新时间： 2024-11-19 14:57:59
品牌 Logo 应用领域
亚德诺 - ADI 开关
页数 文件大小 规格书
16页 245K
描述
双通道、SiGe、高线性度、700MHz至1000MHz下变频混频器，带有LO缓冲器/开关

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中文翻译

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MAX9985 数据手册

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EVALUATION KIT AVAILABLE  
MAX9985  
Dual, SiGe, High-Linearity, 700MHz to 1000MHz  
Downconversion Mixer with LO Buffer/Switch  
General Description  
Features  
The MAX9985 high-linearity, dual-channel downconver-  
sion mixer is designed to provide approximately 6dB  
gain, +28.5dBm of IIP3, and 10.5dB of noise figure (NF)  
ideal for diversity receiver applications. With a 700MHz  
to 1000MHz RF frequency range and a 570MHz to  
865MHz LO frequency range, this mixer is ideal for low-  
side LO injection architectures. In addition, the broad  
frequency range makes the MAX9985 ideal for GSM  
850/950, 2G/2.5G EDGE, WCDMA, cdma2000®, and  
iDEN® base-station applications.  
o 700MHz to 1000MHz RF Frequency Range  
o 570MHz to 865MHz LO Frequency Range  
o 50MHz to 250MHz IF Frequency Range  
o 6dB Typical Conversion Gain  
o 10.5dB Typical Noise Figure  
o +28.5dBm Typical Input IP3  
o +16.2dBm Typical Input 1dB Compression Point  
o 77dBc Typical 2RF-2LO Spurious Rejection at  
The MAX9985 dual-channel downconverter achieves a  
high level of component integration. The MAX9985 inte-  
grates two double-balanced active mixer cores, two LO  
buffers, a dual-input LO selectable switch, and a pair of  
differential IF output amplifiers. In addition, integrated  
on-chip baluns at the RF and LO ports allow for single-  
ended RF and single-ended LO inputs. The MAX9985  
requires a typical 0dBm LO drive. Supply current is  
adjustable up to 400mA.  
P
RF  
= -10dBm  
o Dual Channels Ideal for Diversity Receiver  
Applications  
o 47dB Typical Channel-to-Channel Isolation  
o -3dBm to +3dBm LO Drive  
o Integrated LO Buffer  
o Internal RF and LO Baluns for Single-Ended  
The MAX9985 is available in a 36-pin thin QFN pack-  
age (6mm x 6mm) with an exposed paddle. Electrical  
performance is guaranteed over the extended tempera-  
Inputs  
o Built-In SPDT LO Switch with 43dB LO1-to-LO2  
Isolation and 50ns Switching Time  
ture range, from T = -40°C to +100°C.  
C
o Pin-Compatible with MAX9995 1700MHz to  
Applications  
2200MHz Mixer  
850MHz WCDMA Base Stations  
o Lead(Pb)-Free Package  
GSM 850/GSM 950, 2G/2.5G EDGE Base  
Stations  
cdmaOne™ and cdma2000 Base Stations  
iDEN Base Stations  
Ordering Information  
PKG  
CODE  
PART  
TEMP RANGE PIN-PACKAGE  
Fixed Broadband Wireless Access  
Wireless Local Loop  
36 Thin QFN-EP*  
MAX9985ETX+  
-40°C to +100°C (6mm x 6mm), T3666-2  
lead free, bulk  
Private Mobile Radios  
Military Systems  
36 Thin QFN-EP*  
(6mm x 6mm),  
lead free, T/R  
Digital and Spread-Spectrum Communication  
Systems  
MAX9985ETX+T -40°C to +100°C  
T3666-2  
Microwave Links  
*EP = Exposed paddle.  
cdma2000 is a registered trademark of Telecommunications  
Industry Association.  
T = Tape-and-reel package.  
+Denotes lead(Pb)-free and RoHS compliant.  
iDEN is a registered trademark of Motorola, Inc.  
cdmaOne is a trademark of CDMA Development Group.  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-0705 Rev 1; 12/12  
1234567...16

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