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RF Splitter. ADA4302-4 Datasheet

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RF Splitter. ADA4302-4 Datasheet






ADA4302-4 Splitter. Datasheet pdf. Equivalent




ADA4302-4 Splitter. Datasheet pdf. Equivalent





Part

ADA4302-4

Description

Active RF Splitter



Feature


CSOOB(dBc)SOLETE FEATURES Single 5 V su pply 54 MHz to 865 MHz CATV operating r ange 4.6 dB of gain per output channel 4.4 dB noise figure 25 dB isolation bet ween output channels −16 dB input ret urn loss CSO of −73 dBc (135 channels , 15 dBmV per tone) CTB of −66 dBc (1 35 channels, 15 dBmV per tone) 1.3 GHz, −3 dB bandwidth APPLICATIONS Cable s et-top boxes Home gateways.
Manufacture

Analog Devices

Datasheet
Download ADA4302-4 Datasheet


Analog Devices ADA4302-4

ADA4302-4; CATV distribution systems Cable splitte r modules GENERAL DESCRIPTION The ADA43 02-4 is used as an active element in ap plications where a lossless signal spli t is required. Typical applications inc lude multituner cable set-top boxes, ca ble splitter modules, multituner televi sions, and home gateways where traditio nal solutions have consisted of discret e passive splitter.


Analog Devices ADA4302-4

s followed by separate fixed gain amplif iers. The ADA4302-4 is a low cost alter native solution that simplifies designs and improves system performance by int egrating a signal splitter element and gain element into a single IC solution. The ADA4302-4 fe .


Analog Devices ADA4302-4

.

Part

ADA4302-4

Description

Active RF Splitter



Feature


CSOOB(dBc)SOLETE FEATURES Single 5 V su pply 54 MHz to 865 MHz CATV operating r ange 4.6 dB of gain per output channel 4.4 dB noise figure 25 dB isolation bet ween output channels −16 dB input ret urn loss CSO of −73 dBc (135 channels , 15 dBmV per tone) CTB of −66 dBc (1 35 channels, 15 dBmV per tone) 1.3 GHz, −3 dB bandwidth APPLICATIONS Cable s et-top boxes Home gateways.
Manufacture

Analog Devices

Datasheet
Download ADA4302-4 Datasheet




 ADA4302-4
FEATURES
Single 5 V supply
54 MHz to 865 MHz CATV operating range
4.6 dB of gain per output channel
4.4 dB noise figure
25 dB isolation between output channels
−16 dB input return loss
CSO of −73 dBc (135 channels, 15 dBmV per tone)
CTB of −66 dBc (135 channels, 15 dBmV per tone)
1.3 GHz, −3 dB bandwidth
APPLICATIONS
Cable set-top boxes
Home gateways
CATV distribution systems
Cable splitter modules
GENERAL DESCRIPTION
The ADA4302-4 is used as an active element in applications
where a lossless signal split is required. Typical applications
include multituner cable set-top boxes, cable splitter modules,
multituner televisions, and home gateways where traditional
solutions have consisted of discrete passive splitters followed by
separate fixed gain amplifiers. The ADA4302-4 is a low cost
alternative solution that simplifies designs and improves system
performance by integrating a signal splitter element and gain
element into a single IC solution.
The ADA4302-4 features four differential outputs. The
differential architecture allows systems designed with the
ADA4302-4 to maintain excellent linearity throughout the
CATV band. The ADA4302-4 can also be configured for
applications that require fewer than four outputs. Outputs
can be configured independently from one another.
Active RF Splitter
ADA4302-4
FUNCTIONAL BLOCK DIAGRAM
VCC
+
GND VCC
GND
J1
ILN
VIP
SPLITTER
VIN
ILP
VCC
GND
Figure 1.
VON4
VOP4
VON3
VOP3
VON2
VOP2
VON1
VOP1
–55
–60
–65
TA = +85°C
–70
TA = +25°C
–75
TA = –40°C
–80
–85
50
100
FREQUENCY (MHz)
Figure 2. Composite Second-Order (CSO) vs. Frequency
1000
Rev. B
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
© 2005 Analog Devices, Inc. All rights reserved.




 ADA4302-4
ADA4302-4
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
REVISION HISTORY
9/05—Rev. SpA to Rev. B
Updated Format..................................................................Universal
Changes to Circuit Description Section ........................................ 8
5/05—Rev. Sp0 to Rev. SpA
Changes to Format .............................................................Universal
Changes to Features.......................................................................... 1
Changes to Figure 1 and Figure 2................................................... 1
Changes to Table 1............................................................................ 3
Changes to Figure 4 and Figure 5................................................... 6
Changes to Applications Section .................................................... 8
10/04—Revision Sp0: Initial Version
Typical Performance Characteristics ..............................................6
Applications........................................................................................8
Circuit Description .......................................................................8
Evaluation Boards .........................................................................8
RF Layout Considerations............................................................8
Power Supply..................................................................................8
Outline Dimensions ....................................................................... 11
Ordering Guide .......................................................................... 11
Rev. B | Page 2 of 12




 ADA4302-4
ADA4302-4
SPECIFICATIONS
VCC = 5 V, RIN = RL = 75 Ω, TA = 25°C, unless otherwise noted. The ADA4302-4 is characterized using a balun1 at the input.
Table 1.
Parameter
DYNAMIC PERFORMANCE
Bandwidth (−3 dB)
Specified Frequency Range
Gain (S21)
Gain Flatness
NOISE/DISTORTION PERFORMANCE
Composite Triple Beat (CTB)
Composite Second-Order (CSO)
Cross Modulation (CXM)
Output IP3
Output IP2
Noise Figure
INPUT CHARACTERISTICS
Input Return Loss (S11)
Output-to-Input Isolation (S12)
OUTPUT CHARACTERISTICS
Output Return Loss (S22)
Output-to-Output Isolation
1 dB Compression
POWER SUPPLY
Nominal Supply Voltage
Quiescent Supply Current
Conditions
f = 100 MHz
f = 865 MHz
135 Channels, 15 dBmV/Channel, f = 103.25 MHz
135 Channels, 15 dBmV/Channel, f = 103.25 MHz
135 Channels, 15 dBmV/Channel, 100% modulation
@ 15.75 kHz, f = 103.25 MHz
f1 = 97.25 MHz, f2 = 103.25 MHz
f1 = 97.25 MHz, f2 = 103.25 MHz
@ 54 MHz
@ 550 MHz
@ 865 MHz
Referenced to 75 Ω
@ 54 MHz
@ 550 MHz
@ 865 MHz
Any output, 54 MHz to 865 MHz
Referenced to 75 Ω
@ 54 MHz
@ 550 MHz
@ 865 MHz
Between any two outputs, 54 MHz to 865 MHz
Output referred, f = 100 MHz
Min Typ Max
1300
54 865
3.5 4.6
5.7
1
−66 −62
−73 −67
−67 −64
23
65
4.1 4.4
4.4 4.7
5.0 5.8
−16 −14
−16 −11
−18 −11
−35 −33
−11
−12.5
−14
−25
8
−9
−10
−11.5
5
215 240
1 M/A-COM MABAES0029.
Unit
MHz
MHz
dB
dB
dBc
dBc
dBc
dBm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
V
mA
Rev. B | Page 3 of 12



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