Top

Dual, SiGe, High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch

Lowest Noise, Highest Linearity 1700MHz to 2200MHz Dual, SiGe Mixer for DCS/PCS, CDMA, WCDMA, and LTE Base Stations, Featuring Superior IIP3, NF, and 2LO-2RF Performance

Product Details

The MAX19995A dual-channel downconverter is designed to provide 8.7dB of conversion gain, +24.8dBm input IP3, +13.5dBm 1dB input compression point, and a noise figure of 9.2dB for 1700MHz to 2200MHz diversity receiver applications. With an optimized LO frequency range of 1750MHz to 2700MHz, this mixer is ideal for high-side LO injection architectures. Low-side LO injection is supported by the MAX19995, which is pin-pin and functionally compatible with the MAX19995A.

In addition to offering excellent linearity and noise performance, the MAX19995A 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. Integrated on-chip baluns allow for single-ended RF and LO inputs. The MAX19995A requires a nominal LO drive of 0dBm and a typical supply current of 350mA at VCC = 5.0V, or 242mA at VCC = 3.3V.

The MAX19995/MAX19995A are pin compatible with the MAX19985/MAX19985A series of 700MHz to 1000MHz mixers and pin similar to the MAX19997A/MAX19999 series of 1800MHz to 4000MHz mixers, making this entire family of downconverters ideal for applications where a common PCB layout is used across multiple frequency bands.

The MAX19995A 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 (TC = -40°C to +85°C).

Key Features

  • 1700MHz to 2200MHz RF Frequency Range
  • 1750MHz to 2700MHz LO Frequency Range
  • 50MHz to 500MHz IF Frequency Range
  • 8.7dB Typical Conversion Gain
  • 9.2dB Typical Noise Figure
  • +24.8dBm Typical Input IP3
  • +13.5dBm Typical Input 1dB Compression Point
  • 64dBc 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 48dB LO-to-LO Isolation and 50ns Switching Time
  • Pin Compatible with the MAX19985/MAX19985A/MAX19995 Series of 700MHz to 2200MHz Mixers
  • Pin Similar to the MAX19997A/MAX19999 Series of 1800MHz to 4000MHz Mixers
  • Single 5.0V or 3.3V Supply
  • External Current-Setting Resistors Provide Option for Operating Device in Reduced-Power/Reduced-Performance Mode

Applications/Uses

  • cdma2000® Base Stations
  • DCS1800/PCS1900 and GSM/EDGE Base Stations
  • Fixed Broadband Wireless Access
  • LTE/WiMAX™ Base Stations
  • Military Systems
  • Private Mobile Radios
  • TD-SCDMA Base Stations
  • UMTS/WCDMA Base Stations
  • Wireless Local Loop
Parametric specs for Downconverter Mixers
# Channels 2
RF Freq. (MHz) (min) 1700
RF Freq. (MHz) (max) 2200
LO Frequency (MHz) (min) 1750
LO Frequency (MHz) (max) 2700
IF Frequency (MHz) (min) 50
IF Frequency (MHz) (max) 500
Gain (dB) 8.7
Input IP3 (dBm) 24.8
Noise Figure (dB) 9.2
2RF-2LO/ 2LO-2RF (dBc) 64
VCC (V) 3.0 to 5.25
3.3V Supply Current (mA) 242
5V Supply Current (mA) 350
Footprint (mm x mm) 6.0 x 6.0
Package/Pins TQFN/36
View More

Simplified Block Diagram

MAX19995A: Typical Application Circuit MAX19995A: Typical Application Circuit Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

/en/design/design-tools/ee-sim.html?

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal

Parameters

Parametric specs for Downconverter Mixers
# Channels 2
RF Freq. (MHz) (min) 1700
RF Freq. (MHz) (max) 2200
LO Frequency (MHz) (min) 1750
LO Frequency (MHz) (max) 2700
IF Frequency (MHz) (min) 50
IF Frequency (MHz) (max) 500
Gain (dB) 8.7
Input IP3 (dBm) 24.8
Noise Figure (dB) 9.2
2RF-2LO/ 2LO-2RF (dBc) 64
VCC (V) 3.0 to 5.25
3.3V Supply Current (mA) 242
5V Supply Current (mA) 350
Footprint (mm x mm) 6.0 x 6.0
Package/Pins TQFN/36

Key Features

  • 1700MHz to 2200MHz RF Frequency Range
  • 1750MHz to 2700MHz LO Frequency Range
  • 50MHz to 500MHz IF Frequency Range
  • 8.7dB Typical Conversion Gain
  • 9.2dB Typical Noise Figure
  • +24.8dBm Typical Input IP3
  • +13.5dBm Typical Input 1dB Compression Point
  • 64dBc 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 48dB LO-to-LO Isolation and 50ns Switching Time
  • Pin Compatible with the MAX19985/MAX19985A/MAX19995 Series of 700MHz to 2200MHz Mixers
  • Pin Similar to the MAX19997A/MAX19999 Series of 1800MHz to 4000MHz Mixers
  • Single 5.0V or 3.3V Supply
  • External Current-Setting Resistors Provide Option for Operating Device in Reduced-Power/Reduced-Performance Mode

Applications/Uses

  • cdma2000® Base Stations
  • DCS1800/PCS1900 and GSM/EDGE Base Stations
  • Fixed Broadband Wireless Access
  • LTE/WiMAX™ Base Stations
  • Military Systems
  • Private Mobile Radios
  • TD-SCDMA Base Stations
  • UMTS/WCDMA Base Stations
  • Wireless Local Loop

Description

The MAX19995A dual-channel downconverter is designed to provide 8.7dB of conversion gain, +24.8dBm input IP3, +13.5dBm 1dB input compression point, and a noise figure of 9.2dB for 1700MHz to 2200MHz diversity receiver applications. With an optimized LO frequency range of 1750MHz to 2700MHz, this mixer is ideal for high-side LO injection architectures. Low-side LO injection is supported by the MAX19995, which is pin-pin and functionally compatible with the MAX19995A.

In addition to offering excellent linearity and noise performance, the MAX19995A 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. Integrated on-chip baluns allow for single-ended RF and LO inputs. The MAX19995A requires a nominal LO drive of 0dBm and a typical supply current of 350mA at VCC = 5.0V, or 242mA at VCC = 3.3V.

The MAX19995/MAX19995A are pin compatible with the MAX19985/MAX19985A series of 700MHz to 1000MHz mixers and pin similar to the MAX19997A/MAX19999 series of 1800MHz to 4000MHz mixers, making this entire family of downconverters ideal for applications where a common PCB layout is used across multiple frequency bands.

The MAX19995A 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 (TC = -40°C to +85°C).

Simplified Block Diagram

MAX19995A: Typical Application Circuit MAX19995A: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal