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参数资料
| 型号： | ARA2000S23TR |
| 厂商： | ANADIGICS INC |
| 元件分类： | 放大器 |
| 英文描述： | RF/MICROWAVE NARROW BAND HIGH POWER AMPLIFIER |
| 封装： | SSOP-28 |
| 文件页数： | 1/20页 |
| 文件大小： | 254K |
| 代理商： | ARA2000S23TR |
07-2001
ARA2000
Address-Programmable 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 1dB
increments via a 3 wire serial control
Meets DOCSIS distortion requirements at a
+60dBmV output signal level
Programmable address allows multiple parts
to share control bus
Low distortion and low noise
Frequency range: 5-100MHz
5 Volt operation
-40 to +85 0C temperature range
APPLICATIONS
MCNS/DOCSIS Compliant Cable Modems
CATV Interactive Set-Top Box
Telephony over Cable Systems
OpenCable Set-Top Box
Residential Gateway
The ARA2000 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
performance at a +60dBmV output level while only
requiring a single polarity +5V 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. The ARA2000 has a programmable
address that allows multiple devices to share a
common control bus. The ARA2000 is offered in a
28-pin SSOP package featuring an exposed paddle
on the bottom of the package.
PRODUCT DESCRIPTION
Figure 1. Cable Modem or Set Top Box Application Diagram
S23 Package
28 Pin SSOP
with Exposed Paddle
Diplexer
ARA2000
SAW
Filter
Double-
Conversion
Tuner
MAC
Upstream
QPSK/16QAM
Modulator
QAM Receiver
with FEC
Balun
Low Pass
Filter
Transmit Enable/Disable
Enable
Data
Clock
Address Control
2
Microcontroller
with Ethernet
MAC
RAM
ROM
10Base-T
Transceiver
RJ45
Connector
Clock
Data
54-860 MHz
44 MHz
5-42 MHz
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ARA2001 | 制造商:ANADIGICS 制造商全称:ANADIGICS, Inc 功能描述:CATV Reverse Amplifier with step Attenuator |
| ARA2001S23 | 制造商:ANADIGICS 制造商全称:ANADIGICS, Inc 功能描述:CATV Reverse Amplifier with step Attenuator |
| ARA2001S23P0 | 制造商:Rochester Electronics LLC 功能描述: 制造商:ANADIGICS Inc 功能描述: |
| ARA2001S23TR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Miscellaneous |
| ARA2004 | 制造商:ANADIGICS 制造商全称:ANADIGICS, Inc 功能描述:Reverse Amplifier with Step Attenuator |
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