Catalog
1:3 Single-Ended, Low Cost, Active RF Splitters
Key Features
• Ideal for CATV and terrestrial applications
• Excellent frequency response1.6 GHz, −3 dB bandwidth1 dB flatness to 1.0 GHz
• 1.6 GHz, −3 dB bandwidth
• 1 dB flatness to 1.0 GHz
• Low noise figure: 4.0 dB
• Low distortionComposite second order (CSO): −62 dBcComposite triple beat (CTB): −72 dBc1 dB compression point of 8.25 dBm
• Composite second order (CSO): −62 dBc
• Composite triple beat (CTB): −72 dBc
• 1 dB compression point of 8.25 dBm
• 2.8 dB of gain per output channel
• 25 dB output-to-output isolation, 50 MHz to 1000 MHz
• 75 Ω input and outputs
• Integrated output resistors
• Small package size: 16-lead, 3 mm × 3 mm LFCSP
Description
AI
The ADA4304-3/ADA4304-4 are 75 Ω active splitters for use in applications where a lossless signal split is required. Typical applications include multituner digital set-top boxes, cable splitter modules, multituners/digital cable ready (DCR) televisions, and home gateways where traditional solutions require discrete passive splitter modules with separate fixed gain amplifiers.The ADA4304-3/ADA4304-4 are fabricated using the Analog Devices, Inc., proprietary silicon germanium (SiGe), complementary bipolar process, enabling them to achieve very low levels of distortion with a noise figure of 4.6 dB. The parts provide low cost alternatives that simplify designs and improve system performance by integrating a signal splitter element and a gain block into a single IC. The ADA4304-3/ADA4304-4 are available in a 16-lead LFCSP and operate in the extended industrial temperature range of −40°C to +85°C.ApplicationsSet-top boxesResidential gatewaysCATV distribution systemsSplitter modulesDigital cable ready (DCR) TVsData Sheet, Rev. 0, 11/07
