1:2 Single-Ended, Low Cost, Active RF Splitter ADA4304-2
FEATURES
Ideal for CATV and terrestrial applications Excellent ...
1:2 Single-Ended, Low Cost, Active RF Splitter ADA4304-2
FEATURES
Ideal for CATV and terrestrial applications Excellent frequency response 1.6 GHz, −3 dB bandwidth 1 dB flatness to 1.0 GHz Low noise figure: 4.0 dB Low distortion 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
FUNCTIONAL BLOCK DIAGRAM
5V 5V 0.1µF 1µH 0.1µF
VCC
IL
VOUT1 VIN
0.01µF
ADA4304-2
VOUT2
0.01µF
0.01µF GND
06539-001
APPLICATIONS
Set-top boxes Residential gateways CATV distribution systems www.DataSheet4U.com Splitter modules Digital cable ready (DCR) TVs
Figure 1.
GENERAL DESCRIPTION
The ADA4304-2 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 integ...
