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ARA3000S23 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 ARA3000S23
기능 Telephony Reverse Amplifier With Step Attenuator
제조업체 ANADIGICS Inc
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ARA3000S23 데이터시트, 핀배열, 회로
FEATURES
· Attenuation Range: 0-56 dB, adjustable in
2 dB increments via a serial 3 wire control
· Meets DOCSIS distortion requirements at
+60 dBmV output signal level
· Low noise figure
· Low cost integrated monolithic GaAs
amplifier with step attenuator
· +5V Operation
· Power saving shutdown capability
ARA3000S23
Telephony Reverse Amplifier
with Step Attenuator
Product Brief - Rev 0
APPLICATIONS
· DOSIS Compliant IP Telephony Systems.
· CATV Interactive Set-Top Box
· Home Gateway
Ordering Information
ARA3000 S23 -40 to +850 C
28 PIN SSOP PACKAGE
Description
The ARA3000 is a GaAs IC designed to provide additional reverse path amplification and isolation in IP
Telephony Systems. The precision step attenuator can be digitally controlled to set the output power to the
desired level. The single amplifier stage at the output is capable of meeting both the DOCSIS distortion and
noise requirements from a single +5V supply. In addition, the output amp can be shut down and bypassed
by an on chip switch to save power. The ARA3000 is supplied in a 28-pin SSOP package featuring an
exposed paddle on the bottom of the package. Soldering the exposed paddle to the ground plane of the PC
board ensures the lowest possible thermal resistance for the IC resulting in a long MTF.
3 20 10 27
2
1
9
4-6
11
19
sw bias gnd
+5V
12
attn in 5 BIT ATTENUATOR attn out
12
c1 32 / 16 / 8 / 4 / 2 dB c2
32 16 8 4 2
32
1
+3V
16 8
CMOS
42
2
D1
12
gnd SERIAL to PARALLEL D0
clk data enable
CO C1
28
22
24
23
26
12 13 14
15 16
17 18
7-8
21
25
Figure 1: Functional Block Diagram






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부품번호상세설명 및 기능제조사
ARA3000S23

Telephony Reverse Amplifier With Step Attenuator

ANADIGICS  Inc
ANADIGICS Inc

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