HMC346

Obsolete

HMC346 / HMC346C8 / HMC346G8 / HMC346LC3B / HMC346LP3 / HMC346MS8G

Voltage Variable Attenuator Chip, SMT, or Hermetic SMT, DC to 8 GHz, 14 GHz, 18 GHz, or 20 GHz

Data Sheet Product Selection Table

Part Models: 16
1ku List Price: price unavailable

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Overview

Wide bandwidth: dc to 8 GHz, 14 GHz, 18 GHz, or 20 GHz
Low phase shift vs. attenuation
30 dB or 32 dB attenuation range
Simplified voltage control
Die size: 0.85 × 0.85 × 0.1 mm
RoHS compliant, 3 × 3 mm, surface-mount technology (SMT) package

3 × 3 × 1 mm, surface-mount technology (SMT) package
Surface-mount, ceramic package
8-lead, hermetic, surface-mount technology (SMT) package

The HMC346 devices are absorptive, voltage variable attenuators (VVAs) operating from dc to 8 GHz, 14 GHz, 18 GHz, or 20 GHz. They feature on-chip reference attenuators for use with an external op-amp to provide simple single voltage attenuation control, 0 V to −3 V. These devices are ideal in designs when an analog dc control signal must control RF signal levels over a 30 dB amplitude range. Applications include AGC circuits and temperature compensation of multiple gain stages in microwave radios and test instrumentation.

Applications

Point-to-point radios
VSAT radio
Base station infrastructure
Fiber optics and broadband telecom
Microwave radio and VSAT
Military radios, radar, and ECM
Test instrumentation

Alternative Part 3 See All

GaAs MMIC Voltage-Variable Attenuator, DC - 18 GHz

GaAs MMIC SMT Voltage-Variable Attenuator, DC - 8 GHz

Part Models: 16
1ku List Price: price unavailable

Documentation

Data Sheet 6

HMC346 Die Data Sheet 04/21/2015

HMC346LP3 Data Sheet 04/21/2015

HMC346LC3B Data Sheet 04/21/2015

HMC346MS8G Data Sheet 04/21/2015

HMC346C8 Data Sheet 04/21/2015

HMC346G8 Data Sheet 04/21/2015

Application Note 1

Designing with the HMC346ms8g Voltage Variable Attenuator Application Note 01/19/2016

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
HMC346	CHIPS OR DIE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346C8	8-Lead SMT (4.32mm x 5.59mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346C8TR	8-Lead SMT (4.32mm x 5.59mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346G8	8-Lead Cerpak (Hermetic, Glass Seal, Gullwing Leads)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346G8TR	8-Lead Cerpak (Hermetic, Glass Seal, Gullwing Leads)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346LC3B	12-Lead LCC (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346LC3BTR	12-Lead LCC (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346LC3BTR-R5	12-Lead LCC (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346LP3	16-Lead QFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346LP3E	16-Lead QFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346LP3ETR	16-Lead QFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346LP3TR	16-Lead QFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346MS8G	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346MS8GE	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346MS8GETR	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC346MS8GTR	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 6, 2022 - 22_0048 Addition of ASE Korea as an Alternate Assembly Site for Select LFCSP Products
		PCN22_0048_Form Material_Report Qualification Results Summary Detailed Change Description
HMC346LP3E	Obsolete
HMC346LP3ETR	Obsolete
May 6, 2019 - 19_0063 Assembly Site Transfer of Select MSOP and SOIC_N E-pad Devices to Carsem Malaysia
		PCN19_0063_Form Material_Report Other Qualification Results Summary Qualification Results Summary Other
HMC346MS8GE	Obsolete
HMC346MS8GETR	Obsolete
Jan 11, 2017 - 16_0010 Discontinuance of Select RF and Microwave Products
		PDN16_0010_Form Material_Report
HMC346	Obsolete
HMC346C8	Obsolete
HMC346C8TR	Obsolete
HMC346G8	Obsolete
HMC346G8TR	Obsolete
HMC346LC3B	Obsolete
HMC346LC3BTR	Obsolete
HMC346LC3BTR-R5	Obsolete
HMC346LP3	Obsolete
HMC346LP3E	Obsolete
HMC346LP3ETR	Obsolete
HMC346LP3TR	Obsolete
HMC346MS8G	Obsolete
HMC346MS8GE	Obsolete
HMC346MS8GETR	Obsolete
HMC346MS8GTR	Obsolete

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
HMC346ALC3B		GaAs MMIC Voltage-Variable Attenuator, DC - 18 GHz
HMC346AMS8GE		GaAs MMIC SMT Voltage-Variable Attenuator, DC - 8 GHz
HMC346ALP3E		GaAs MMIC Voltage-Variable Attenuator, DC - 14 GHz