Datasheet > ADA4304-4

ADA4304-4

更新时间： 2022-02-26 11:45:11

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
11页	217K
描述
1:3 and 1:4 Single-Ended, Low Cost Active RF Splitters

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ADA4304-4 数据手册

1:3 and 1:4 Single-Ended, Low Cost,

Active RF Splitters

Data Sheet

ADA4304-3/ADA4304-4

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

Ideal for CATV and terrestrial applications

2.4 GHz, −3 dB bandwidth

0.1µF

1 dB flatness: 54 MHz to 865 MHz

Low noise figure: 4.6 dB

1µH

Low distortion

VCC

Composite second-order (CSO): −62 dBc

Composite triple beat (CTB): −72 dBc

Nominal 3 dB gain per output channel

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

75 Ω input and outputs

VOUT1

0.01µF

VOUT2

VOUT3

VIN

ADA4304-3

0.01µF

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

GND

APPLICATIONS

Set-top boxes

Residential gateways

CATV distribution systems

Splitter modules

Figure 1.

Digital cable ready (DCR) TVs

0.1µF

1µH

VCC

VOUT1

0.01µF

VOUT2

VOUT3

VOUT4

VIN

ADA4304-4

0.01µF

GND

Figure 2.

GENERAL DESCRIPTION

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.

Rev. A

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Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Technical Support

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