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ADA4304-2ACPZ-R7 数据手册 - ADI（亚德诺）
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ADI（亚德诺）
分类:
放大器IC与RF模块
封装:
LFCSP-16
描述:
ANALOG DEVICES ADA4304-2ACPZ-R7 芯片, 射频分接器, 1.6GHZ, LFCSP-16
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ADA4304-2ACPZ-R7数据手册
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1:2 Single-Ended, Low Cost,
Active RF Splitter
Data Sheet
ADA4304-2
Rev. A Document Feedback
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 registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2007–2016 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
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
APPLICATIONS
Set-top boxes
Residential gateways
CATV distribution systems
Splitter modules
Digital cable ready (DCR) TVs
FUNCTIONAL BLOCK DIAGRAM
VIN
VOUT2
VOUT1
GND
VCC
0.01µF
IL
1µH
5
V
5
V
ADA4304-2
0.01µF
0.01µF
0.1µF0.1µF
06539-001
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
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.
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
4
10050 1000 4000
T
A
= –40°C
06539-011
FREQUENCY (MHz)
GAIN (dB)
T
A
= +85°C
T
A
= +25°C
Figure 2. Gain (S
21
, S
31
) vs. Frequency
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