參數(shù)資料
型號(hào)： ARA2004RS12P1
廠商： ANADIGICS INC
元件分類： 衰減器
英文描述： Reverse Amplifier with Step Attenuator
中文描述： 5 MHz - 100 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER
封裝： ROHS COMPLIANT, S12, SSOP-28
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 276K
代理商： ARA2004RS12P1
07/2005
ARA2004
Reverse Amplifier with Step Attenuator
Data Sheet - Rev 2.1
FEATURES
Low Cost Integrated Amplifier with Step
Attenuator
Attenuation Range: 0-58 dB, adjustable in 1 dB
increments via a 3 wire serial control
Meets DOCSIS distortion requirements at +60
dBmV output signal level
Low distortion and low noise
Frequency range: 5-100 MHz
5 Volt operation
-40 to +85
o
C temperature range
RoHS Compliant Package Option
APPLICATIONS
MCNS/DOCSIS Compliant Cable Modems
CATV Interactive Set-Top Box
Telephony over Cable Systems
OpenCable Set-Top Box
Residential Gateway
PRODUCT DESCRIPTION
The ARA2004 is designed to provide the reverse path
amplification and output level control functions in a
CATV Set-Top Box or Cable Modem. It incorporates
a digitally controlled precision step attenuator that is
preceded by an ultra low noise amplifier stage, and
followed by an ultra-linear output driver amplifier. This
device uses a balanced circuit design that exceeds
the MCNS/DOCSIS requirement for harmonic
Figure 1: Cable Modem or Set Top Box Application Diagram
S12 Package
28 Pin SSOP
with Heat Slug
Diplexer
ARA2004
SAW
Filter
Double-
Conversion
Tuner
MAC
Upstream
QPSK/16QAM
Modulator
QAM Receiver
with FEC
Balun
Low Pass
Filter
Transmit Enable/Disable
Enable
Data
Clock
Microcontroller
with Ethernet
MAC
RAM
ROM
10Base-T
Transceiver
RJ45
Connector
Clock
Clock
Data
Data
54-860 MHz
44 MHz
5-42 MHz
performance at a +60 dBmV output level while only
requiring a single polarity +5 V supply. Both the input
and output are matched to 75 ohms with an
appropriate transformer. The precision attenuator
provides up to 58 dB of attenuation in 1 dB increments
via a three-wire serial interface. With external passive
components, this device meets IEC 1000-4-12 and
ANSI/IEEE C62.41-1991 100KHz ringwave tests, as
well as IEC1000-4-5 1.2/50
μ
S surge tests. The
ARA2004 is offered in a 28-pin SSOP package
featuring a heat slug on the bottom of the package.
相關(guān)PDF資料
PDF描述
ARA2004S12P1 Reverse Amplifier with Step Attenuator
ARA2005 Reverse Amplifier with Step Attenuator
ARA2005S8P0 Reverse Amplifier with Step Attenuator
ARA2005S8P1 Reverse Amplifier with Step Attenuator
ARA2008 Reverse Amplifier with Step Attenuator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ARA2004S12P1 制造商:ANADIGICS Inc 功能描述:5 MHz - 100 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER
ARA2004S12P9 制造商:Rochester Electronics LLC 功能描述: 制造商:ANADIGICS Inc 功能描述:
ARA2005 制造商:ANADIGICS 制造商全稱:ANADIGICS, Inc 功能描述:Reverse Amplifier with Step Attenuator
ARA2005S8P0 制造商:ANADIGICS 制造商全稱:ANADIGICS, Inc 功能描述:Reverse Amplifier with Step Attenuator
ARA2005S8P1 制造商:ANADIGICS 制造商全稱:ANADIGICS, Inc 功能描述:Reverse Amplifier with Step Attenuator
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