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HMC344LP3, HMC345LP3, HMC346

Table of contents:
Info of HMC344LP3
Info of HMC345LP3
Info of HMC346

HMC344LP3, HMC345LP3, HMC346 Selling Leads, Datasheet

MFG:HITTITE Package Cooled:QFN D/C:05+

HMC344LP3, HMC345LP3, HMC346 Datasheet download

Five Points

Part Number: HMC344LP3

MFG: HITTITE

Package Cooled: QFN

D/C: 05+

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HMC344LP3 General Description

The HMC344LP3 is a broadband non-refl ective GaAs MESFET SP4T switch in a low cost leadless surface mount package. Covering DC to 8 GHz, this switch offers high isolation and low insertion loss and extends the frequency coverage of Hittite's SP4T switch product line. This switch also includes an on board binary decoder circuit which reduces the required logic control lines to two. The switch operates using a negative control voltage of 0/-5V, and requires a fi xed bias of -5V.

HMC344LP3 Maximum Ratings

Bias Voltage Range (Vee)	-7.0 Vdc
Control Voltage Range (A & B)	Vee -0.5V to +1.0 Vdc
Channel Temperature	150 °C
Thermal Resistance (Insertion Loss Path)	143 °C/W
Thermal Resistance (Terminated Path)	1,030 °C/W
Storage Temperature	-65 to +150 °C
Operating Temperature	-40 to +85 °C
Maximum Input Power	+24 dBm

HMC344LP3 Features

Broadband Performance: DC - 8.0 GHz
High Isolation: 40 dB@ 6 GHz
Low Insertion Loss: 1.8 dB@ 6 GHz
Integrated 2:4 TTL Decoder
LP3 SMT Package

HMC344LP3 Typical Application

This switch is suitable for usage in DC - 8.0 GHz 50-Ohm or 75-Ohm systems:
• Broadband
• Fiber Optics
• Switched Filter Banks
• Wireless below 8 GHz

HMC344LP3 Connection Diagram

HMC345LP3 General Description

The HMC345LP3 is a broadband non-refl ective GaAs MESFET SP4T switch in a low cost leadless surface mount package. Covering DC to 8 GHz, this switch offers high isolation and low insertion loss. This switch also includes an on board binary decoder circuit which reduces the required logic control lines to two. The switch operates using a positive control voltage of 0/+5V, and requires a fi xed bias of +5V.

HMC345LP3 Maximum Ratings

Bias Voltage Range (Port Vdd)	+7.0 Vdc
Control Voltage Range (A & B)	-0.5V to Vdd +1.0 Vdc
Channel Temperature	150 °C
Thermal Resistance (Insertion Loss Path)	143 °C/W
Thermal Resistance (Terminated Path)	1030 °C/W
Storage Temperature	-65 to +150 °C
Operating Temperature	-40 to +85 °C
Maximum Input Power	+24 dBm

HMC345LP3 Features

Broadband Performance: DC - 8.0 GHz
High Isolation: 35 dB@ 6 GHz
Low Insertion Loss: 2.2 dB@ 6 GHz
Integrated Positive Supply 2:4 TTL Decoder
3 mm x 3 mm x 1 mm SMT Package

HMC345LP3 Typical Application

This switch is suitable for usage in DC - 8.0 GHz 50-Ohm or 75-Ohm systems:
• Broadband
• Fiber Optics
• Switched Filter Banks
• Wireless below 8 GHz

HMC345LP3 Connection Diagram

HMC346 General Description

The HMC346 die is an absorptive Voltage Variable Attenuator (VVA) operating from DC - 20 GHz. It features an on-chip reference attenuator for use with an external op-amp to provide simple single voltage attenuation control, 0 to -3V. The device is ideal in designs where an analog DC control signal must control RF signal levels over a 30 dB amplitude range. For plastic packaged version, see the HMC346MS8G which operates from DC - 8 GHz.

HMC346 Maximum Ratings

RF Input Power	+18 dBm
Control Voltage Range	+1.0 to -5.0 Vdc
Storage Temperature	-65 to +150 °C
Operating Temperature	-40 to +85 °C

HMC346 Features

Wide Bandwidth: DC - 20 GHz
Low Phase Shift vs. Attenuation
32 dB Attenuation Range
Die Size: 0.85 mm x 0.85 mm x 0.1 mm

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