QPB3321
17.5 dB Return Path Amplifier 5ꢀ–ꢀ210ꢀMHz
®
Product Overview
The QPB3321 is an HBT single ended RF amplifier IC
operating as return path amplifier capable of
supporting DOCSIS 3.1 applications. This IC is
designed to provide a low noise, high gain option for
5-210MHz interface using an 8V power supply to
provide lower overall power dissipation. 5V operation
is possible in applications with reduced linearity and
gain requirements. The QPB3321 is packaged in a
convenient SOIC8 package and features an externally
adjustable bias control.
Package: SOIC-8 with Exposed Pad
Key Features
■ 5MHz to 210MHz Operation
■ 8V and 5V Operation
Functional Block Diagram
■ Gain; 17.5dB Typical
■ Noise Figure 3.4dB Typical
■ Adjustable Bias Using External Resistors
■ SOIC-8 Exposed Pad
Applications
• Head End CMTS Equipment
• Post Amp for Return Path Optical Receivers
• DOCSIS 3.1 Optical Nodes
Top View
• Residential Amplifiers and Splitters
Ordering Information
Part No.
Description
QPB3321SQ
QPB3321SR
QPB3321TR13
QPB3321PCK
Sample bag with 25 pieces
7" Reel with 100 pieces
13" Reel with 2500 pieces
5ꢀ–ꢀ210ꢀMHz PCBA with 5 pc sample bag
Data Sheet –Rev C, July 24, 2017 | Subject to change without notice
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