MAX19985A

LAST TIME BUY

Dual, SiGe, High-Linearity, High-Gain, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch

Lowest Noise, Highest Linearity 700MHz-1000MHz Dual SiGe Mixer for WCDMA, CDMA, LTE, WiMAX, and GSM Base Stations, Featuring Superior IP3, NF and 2LO-2RF Performance

Data Sheet (Rev. 0) Product Selection Table
Viewing:

Overview

  • 700MHz to 1000MHz RF Frequency Range
  • 900MHz to 1300MHz LO Frequency Range
  • 50MHz to 500MHz IF Frequency Range
  • 8.7dB Typical Conversion Gain
  • 9.0dB Typical Noise Figure
  • +25.5dBm Typical Input IP3
  • +12.6dBm Typical Input 1dB Compression Point
  • 76dBc Typical 2LO-2RF Spurious Rejection at PRF = -10dBm
  • Dual Channels Ideal for Diversity Receiver Applications
  • 48dB Typical Channel-to-Channel Isolation
  • Low -3dBm to +3dBm LO Drive
  • Integrated LO Buffer
  • Internal RF and LO Baluns for Single-Ended Inputs
  • Built-In SPDT LO Switch with 46dB LO1-to-LO2 Isolation and 50ns Switching Time
  • Pin Compatible with the MAX19995/MAX19995A Series of 1700MHz to 2200MHz Mixers
  • Pin Similar to the MAX19997A/MAX19999 Series of 1850MHz to 3800MHz Mixers
  • Single +5.0V or +3.3V Supply
  • External Current-Setting Resistors Provide Option for Operating Device in Reduced-Power/Reduced-Performance Mode

The MAX19985A high-linearity, dual-channel, downconversion mixer is designed to provide approximately 8.7dB gain, +25.5dBm of IIP3, and 9.0dB of noise figure for 700MHz to 1000MHz diversity receiver applications. With an optimized LO frequency range of 900MHz to 1300MHz, this mixer is ideal for high-side LO injection architectures in the cellular and new 700MHz bands. Low-side LO injection is supported by the MAX19985, which is pin-pin and functionally compatible with the MAX19985A.

In addition to offering excellent linearity and noise performance, the MAX19985A also yields a high level of component integration. This device includes two double-balanced passive mixer cores, two LO buffers, a dual-input LO selectable switch, and a pair of differential IF output amplifiers. On-chip baluns are also integrated to allow for single-ended RF and LO inputs.

The MAX19985A requires a nominal LO drive of 0dBm and a typical supply current of 330mA at VCC = +5.0V or 280mA at VCC = +3.3V.

The MAX19985/MAX19985A are pin compatible with the MAX19995/MAX19995A series of 1700MHz to 2200MHz mixers and pin similar with the MAX19997A/MAX19999 series of 1850MHz to 3800MHz mixers, making this entire family of downconverters ideal for applications where a common PCB layout is used across multiple frequency bands.

The MAX19985A is available in a 6mm x 6mm, 36-pin thin QFN package with an exposed pad. Electrical performance is guaranteed over the extended temperature range of TC = -40°C to +85°C.

Applications

  • 700MHz LTE/WiMAX™ Base Stations
  • 850MHz WCDMA and cdma2000® Base Stations
  • Fixed Broadband Wireless Access
  • GSM850/900 2G and 2.5G EDGE Base Stations
  • iDEN® Base Stations
  • Military Systems
  • Private Mobile Radios
  • Wireless Local Loop
MAX19985A
Dual, SiGe, High-Linearity, High-Gain, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX19985A: Typical Application Circuit
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 3

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Hardware Ecosystem

Parts Product Life Cycle Description
RF Mixers 27
MAX9981
825MHz to 915MHz, Dual SiGe High-Linearity Active Mixer
MAX9982
825MHz to 915MHz, SiGe High-Linearity Active Mixer
MAX9984
PRODUCTION SiGe High-Linearity, 400MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9985
PRODUCTION Dual, SiGe, High-Linearity, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX19985
LAST TIME BUY Dual, SiGe, High-Linearity, High-Gain, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9986
LAST TIME BUY SiGe High-Linearity, 815MHz to 995MHz Downconversion Mixer with LO Buffer/Switch
MAX9986A
PRODUCTION SiGe High-Linearity, 815MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9993
LAST TIME BUY High-Linearity 1700MHz to 2200MHz Down-Conversion Mixer with LO Buffer/Switch
MAX9994
PRODUCTION SiGe High-Linearity, 1400MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch
MAX9995
LAST TIME BUY Dual, SiGe, High-Linearity, 1700MHz to 2700MHz Downconversion Mixer with LO Buffer/Switch
MAX19995
PRODUCTION Dual, SiGe, High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch
MAX19995A
PRODUCTION Dual, SiGe, High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch
MAX19997A
PRODUCTION Dual, SiGe High-Linearity, High-Gain, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer/Switch
MAX19999
Dual, SiGe High-Linearity, 3000MHz to 4000MHz Downconversion Mixer with LO Buffer
MAX9996
PRODUCTION SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch
MAX19996
PRODUCTION SiGe, High-Linearity, High-Gain, 2000MHz to 3000MHz Downconversion Mixer with LO Buffer
MAX19998
SiGe, High-Linearity, 2300MHz to 4000MHz Downconversion Mixer with LO Buffer
MAX19996A
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer
MAX19998A
SiGe, High-Linearity, High-Gain, 3200MHz to 3900MHz Downconversion Mixer with LO Buffer/Switch
MAX2029
PRODUCTION High-Linearity, 815MHz to 1000MHz Upconversion/Downconversion Mixer with LO Buffer/Switch
MAX2031
PRODUCTION High-Linearity, 650MHz to 1000MHz Upconversion/Downconversion Mixer with LO Buffer/Switch
MAX2039
Obsolete High-Linearity, 1700MHz to 2200MHz Upconversion/Downconversion Mixer with LO Buffer/Switch
MAX2041
PRODUCTION High-Linearity, 1700MHz to 3000MHz Upconversion/Downconversion Mixer with LO Buffer/Switch
MAX2042
SiGe High-Linearity, 2000MHz to 3000MHz Upconversion/Downconversion Mixer with LO Buffer
MAX2042A
PRODUCTION SiGe, High-Linearity, 1600MHz to 3900MHz Upconversion/Downconversion Mixer with LO Buffer
MAX2043
1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer
MAX2044
LAST TIME BUY SiGe, High-Linearity, 2300MHz to 4000MHz Upconversion/Downconversion Mixer with LO Buffer
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Latest Discussions

No discussions on MAX19985A yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed