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ARA1400S12 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 ARA1400S12
기능 CATV Reverse Amplifier with step Attenuator
제조업체 ANADIGICS Inc
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ARA1400S12 데이터시트, 핀배열, 회로
A
ARA1400S12
CATV Reverse Amplifier with Step Attenuator
Advanced Product Information
Rev. 2
FEATURES
· Low cost integrated monolithic GaAs
amplifier and step attenuator with output
disconnect switch.
· Meets DOCSIS distortion requirements at
+60 dBmV
· Frequency range: 5 – 100 MHz
· Attenuation Range: 0 – 56 dB, variable in
4 dB steps
· 5 Volt operation
· Low distortion & Low noise figure
28
1
APPLICATIONS
· MCNS/DOCSIS Compliant Cable Modems
· CATV Interactive Set-Top Box
· Telephony over Cable Systems
S12
28 PIN SSOP PACKAGE
DESCRIPTION
The ARA1400S12 is a GaAs IC designed to perform 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. It is capable of meeting the MCNS/DOCSIS harmonic distortion specifications while only requiring
a single polarity +5V supply. This
part is a single ended design
ABSOLUTE MAXIMUM RATINGS
that does not require an output
balun to achieve –52 dBc 2nd
PARAMETER
PARAMETER
harmonic performance at +60
dBmV output levels. Both the
VDD (PINS 4,12,17)
VRFIN (PINS 10, 26)
9
0 to -3
VDC
VDC
input and output are matched to
75 ohms. The precision
attenuator provides up to 56 dB
ATTIN (3) ATTOUT (28)V
VISET (PINS 11, 27)
5
VDC
of attenuation in 4 dB
increments. The ARA1400S12
2
VDC
is supplied in a 28-pin SSOP
RF Input Voltage (PINS 10, 26)*
Storage Temperature
+ 60
- 55 to +200
dBmV
°C
package featuring a thermal heat
slug on the bottom of package.
Soldering this heat slug to the
Soldering Temperature
Soldering Time
260 °C ground plane of the PC board
ensures the lowest possible
5
Sec
thermal resistance for the device
Operating Case Temperature
0 to + 85
°C
resulting in a long MTF.




ARA1400S12 pdf, 반도체, 판매, 대치품
ARA1400S12
CATV REVERSEAMPLIFIER WITH STEPATTENUATOR
Advanced Product Information Rev. 2
TEST CIRCUIT
Vdd1
RFIN
Shutdown
#1
F
GND 1
2
.01uF 1uF
10uH
3.3K
.1uF
20
3
4
5
GND GND 600
1pF
.1uF
1.8K 1uF 1uF 6
GND 7
.1uF 8
GND
GND
9
0.1uF
10
0.1uF
5K
5K
1uF
3.9
11
12
13
14
1uF
GND
GND
REVERSE AMP
.1uF
28
27 GND
.1uF
26
25
10K
5K
24
23 1uF
GND 0.1uF 1uF 620
22
5K 0.1uF
5K
21 .1uF
20 GND
GND
19
18 20
GND
.1uF 3.3K
17 10uH 1uF 1.8K
16
15
GND
Output Switch
Control
Shutdown #2
RFOUT
Vdd2
.01uF 1uF
GND
5V DIGITAL
32 dB
16 dB
+5V
8 dB 4 dB
SW4 SW3
SW2 SW1
DIP SWITCH LOGIC TABLE
Attn (dB) 4 8
SW 1
XO
SW 2
OX
SW 3
OO
SW4
OO
O = Open (0 Vdc)
X = Closed (+5 Vdc)
12 16 20 24 28 32 36 40 44 48 52 56 60
XOXOXOXOXOXOX
XOOX XOOX XOOX X
OX X X XOOOOX X X X
OOOOOX X X X X X X X
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ARA1400S12 전자부품, 판매, 대치품
ARA1400S12
CATV REVERSEAMPLIFIER WITH STEPATTENUATOR
Advanced Product Information Rev. 2
NOTES
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부품번호상세설명 및 기능제조사
ARA1400S12

CATV Reverse Amplifier with step Attenuator

ANADIGICS  Inc
ANADIGICS Inc

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