ADA4304-2

1 ： 2单端，低成本有源RF分路器 1:2 Single-Ended, Low Cost, Active RF Splitter

Product Details

The is a 75 Ω active splitter for use in applications where a lossless signal split is required. Typical applications include multituner digital set-top boxes, cable splitter modules, multituner/digital cable ready DCR televisions, and home gateways where traditional solutions require discrete passive splitter modules with separate fixed gain amplifiers.

The ADA4304-2 is fabricated using Analog Devices, Inc. proprietary silicon-germanium SiGe, complementary bipolar process, enabling it to achieve very low levels of distortion with a noise figure of 4 dB. The part provides a low cost alternative that simplifies designs and improves system performance by integrating a signal splitter element and a gain block into a single IC. The ADA4304-2 is available in a 16-lead LFCSP and operates in the extended industrial temperature range of −40°C to +85°C.

**Applications**

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Set-top boxes

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Residential gateways

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CATV distribution systems

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Splitter modules

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Digital cable ready DCR TVs

### Features and Benefits

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Ideal for CATV and terrestrial applications

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Excellent frequency response

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1.6 GHz, −3 dB bandwidth

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1 dB flatness to 1.0 GHz

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Low noise figure: 4.0 dB

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Low distortion

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Composite second order CSO: −62 dBc

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Composite triple beat CTB: −72 dBc

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1 dB compression point of 8.25 dBm

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2.8 dB of gain per output channel

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25 dB output-to-output isolation, 50 MHz to 1000 MHz

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75 Ω input and outputs

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Integrated output resistors

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Small package size: 16-lead, 3 mm × 3 mm LFCSP