1:2 Single-Ended, Low Cost
Active RF Splitter
Data Sheet
ADA4303-2
FEATURES FUNCTIONAL BLOCK DIAGRAM
5V 5V
Ideal for CATV applications
Excellent frequency response
0.1F 0.1F
1.7 GHz, 3 dB bandwidth
1H
1 dB flatness to 1.2 GHz
Low noise figure: 4.4 dB
VCC IL
Low distortion
Composite second order (CSO): 62 dBc
VO1
Composite triple beat (CTB): 72 dBc
0.01F
VIN
ADA4303-2
1 dB compression point of 8.5 dBm
0.01F
3 dB of gain per output channel VO2
24 dB isolation between output channels 0.01F 249
75 input and outputs
249
GND
Small package size
12-lead, 3 mm 3 mm lead frame chip scale package
APPLICATIONS Figure 1.
Set-top boxes
Home gateways
CATV distribution systems
Splitter modules
Digital cable ready (DCR) TVs
GENERAL DESCRIPTION
4
The ADA4303-2 is a 75 , two -output active splitter for use
T = 40C
A
3
in applications where a lossless signal split is required. Typical
2
applications include multituner digital set-top boxes, cable splitter
T = +25C
A
1
modules, multituner/digital cable ready (DCR) televisions, and
0
home gateways where traditional solutions require discrete
T = +85C
A
1
passive splitter modules with separate fixed gain amplifiers.
2
The ADA4303-2 is a low cost alternative that simplifies designs
3
and improves system performance by integrating a signal splitter
4
element and a gain block into a single IC. The ADA4303-2 is
5
available in a 12-lead chip scale package (LFCSP) and operates
6
in the extended industrial temperature range of 40C to +85C.
7
8
50 100 1000 4000
FREQUENCY (MHz)
Figure 2. Gain (S21) vs. Frequency
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GAIN (dB)
06364-001
06364-010ADA4303-2* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
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ADA4303-2: 1:2 Single-Ended, Low Cost Active RF Splitter
Data Sheet
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REFERENCE MATERIALS
number.
Product Selection Guide
DOCUMENT FEEDBACK
RF Source Booklet
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DESIGN RESOURCES
ADA4303-2 Material Declaration
PCN-PDN Information
Quality And Reliability
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