QPB2318
15 dB Balanced Return Path Amplifier 5ꢀ–ꢀ210ꢀMHz
®
Product Overview
The QPB2318 is an HBT RF balanced amplifier IC
operating as a 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. The
QPB2318 can also be used in 5V and single ended
applications with reduced linearity requirements. The
QPB2318 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; 15.5dB Typical
■ Noise Figure 3.8dB Typical
■ Adjustable Bias Using External Resistors
■ SOIC-8 Exposed Pad
RFIN1
BIAS1
BIAS2
RFOUT1
GND
GND
Applications
• Head End CMTS Equipment
RFIN2
RFOUT2
• Post Amp for Return Path Optical Receivers
• DOCSIS 3.1 Optical Nodes
Top View
• Residential Amplifiers and Splitters
Ordering Information
Part No.
Description
QPB2318SQ
QPB2318SR
QPB2318TR13
QPB2318PCK
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 B, August 4, 2017 | Subject to change without notice
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