The ADA4304-2 is a 75 Ohm 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.
- Ideal for CATV and terrestrial applications
- Excellent frequency response
- 1.6 GHz, -3 dB bandwidth
- 1 dB flatness to 1.0 GHz
- Low distortion
- Composite second order (CSO): -62 dBc
- Composite triple beat (CTB): -72 dBc
- 1 dB compression point of 8.25 dBm
- Low noise figure: 4.0 dB
- 2.8 dB of gain per output channel
- 25 dB output-to-output isolation, 50 MHz to 1000 MHz
- 75 Ohm input and outputs
- Integrated output resistors
- Small package size: 16-lead, 3 mm × 3 mm LFCSP
- Applications include Set-top boxes, Residential gateways, CATV distribution systems, Splitter modules, Digital cable ready (DCR) TVs
