Data Sheet

ADCA5191

5 MHz to 1800 MHz Broadband CATV Amplifier

Rev. 0

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FEATURES

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Frequency range of 5 MHz to 1800 MHz

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High gain of 25.8 dB at 1800 MHz

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Excellent reverse isolation: −37 dB typical

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Excellent NPR (MER) performance: 51 dB at 67 dBmV TCP

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Excellent return losses:

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−20 dB at 45 MHz to 1218 MHz

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−18 dB at 1218 MHz to 1800 MHz

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Configurable dc current (total) from 250 mA to 530 mA

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32-lead, 5 mm x 5 mm, LFCSP

APPLICATIONS

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45 MHz to 1800 MHz CATV infrastructure amplifier systems

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5 MHz to 700 MHz upstream

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Remote physical layer (PHY)

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DOCSIS

FUNCTIONAL BLOCK DIAGRAM

Figure 1.

GENERAL DESCRIPTION

The ADCA5191 is a medium power gain block amplifier that pro-

vides excellent linearity across a flexible bias range allowing power

efficient design implementation for various applications.

The device provides 25.8 dB of flat gain up to 1800 MHz, making

this ideal for Data Over Cable Service Interface Specification (DOC-

SIS) 4.0 downstream applications. The device is also well suited for

upstream applications to 700 MHz as the output stage. It is conven-

iently packaged in an industry-standard, 5 mm × 5 mm, 32-lead,

lead frame chip-scale package (LFCSP) with an exposed pad on

the bottom of the package for improved thermal performance.