MAX9985

更新时间： 2024-11-21 04:41:31

品牌	Logo	应用领域
美信 - MAXIM		开关
页数	文件大小	规格书
15页	217K
描述
Dual, SiGe, High-Linearity, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch

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MAX9985 数据手册

19-0705 Rev 0; 1/07

Dual, SiGe, High-Linearity, 700MHz to 1000MHz

Downconversion Mixer with LO Buffer/Switch

MAX985

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.

ꢀ 700MHz to 1000MHz RF Frequency Range

ꢀ 570MHz to 865MHz LO Frequency Range

ꢀ 50MHz to 250MHz IF Frequency Range

ꢀ 6dB Typical Conversion Gain

ꢀ 10.5dB Typical Noise Figure

ꢀ +28.5dBm Typical Input IP3

ꢀ +16.2dBm Typical Input 1dB Compression Point

ꢀ 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.

= -10dBm

ꢀ Dual Channels Ideal for Diversity Receiver

Applications

ꢀ 47dB Typical Channel-to-Channel Isolation

ꢀ -3dBm to +3dBm LO Drive

ꢀ Integrated LO Buffer

ꢀ 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

ꢀ Built-In SPDT LO Switch with 43dB LO1-to-LO2

Isolation and 50ns Switching Time

ture range, from T = -40°C to +85°C.

ꢀ Pin-Compatible with MAX9995/MAX9995A

Applications

1700MHz to 2200MHz Mixers

850MHz WCDMA Base Stations

ꢀ Lead-Free Package Available

Ordering Information

PKG

GSM 850/GSM 950, 2G/2.5G EDGE Base

Stations

cdmaOne™ and cdma2000 Base Stations

iDEN Base Stations

PART

TEMP RANGE PIN-PACKAGE

CODE

36 Thin QFN-EP*

-40°C to +85°C

Fixed Broadband Wireless Access

Wireless Local Loop

MAX9985ETX

T3666-2

(6mm x 6mm)

36 Thin QFN-EP*

-40°C to +85°C (6mm x 6mm), T3666-2

T/R

Private Mobile Radios

MAX9985ETX-T

MAX9985ETX+

Military Systems

Digital and Spread-Spectrum Communication

Systems

36 Thin QFN-EP*

(6mm x 6mm),

lead free, bulk

-40°C to +85°C

T3666-2

Microwave Links

cdma2000 is a registered trademark of Telecommunications

Industry Association.

36 Thin QFN-EP*

MAX9985ETX+T -40°C to +85°C (6mm x 6mm), T3666-2

lead free, T/R

iDEN is a registered trademark of Motorola, Inc.

cdmaOne is a trademark of CDMA Development Group.

*EP = Exposed paddle.

T = Tape-and-reel package.

+Denotes lead-free and RoHS compliant.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...15

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与MAX9985相关器件

型号	品牌	获取价格	描述	数据表
MAX9985ETX	MAXIM	获取价格	Dual, SiGe, High-Linearity, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9985ETX+	MAXIM	获取价格	Dual, SiGe, High-Linearity, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9985ETX+T	MAXIM	获取价格	Dual, SiGe, High-Linearity, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9985ETX-T	MAXIM	获取价格	Dual, SiGe, High-Linearity, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9986	MAXIM	获取价格	SiGe High-Linearity, 815MHz to 995MHz Downconversion Mixer with LO Buffer/Switch
MAX9986	ADI	获取价格	SiGe、高线性度、815MHz至995MHz下变频混频器，带有LO缓冲器/开关
MAX9986A	MAXIM	获取价格	SiGe High-Linearity, 815MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9986A	ADI	获取价格	SiGe、高线性度、815MHz至1000MHz下变频混频器，带有LO缓冲器/开关
MAX9986AETP	MAXIM	获取价格	SiGe High-Linearity, 815MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9986AETP+	MAXIM	获取价格	SiGe High-Linearity, 815MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch

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