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ARA05050S12-1

Features: * Integrated monolithic GaAs amplifier and stepattenuator.* Compatible with all digital and analog modulation types.* Frequency range: 5 - 100 MHz.* Gain: 0 - 30 dB, variable in 2 dB steps.* 5 Volt operation.* Low noise figure.* Low distortion.* Amplifier shutdown capability.* Low cost.*...

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SeekIC No. : 004287925 Detail

ARA05050S12-1: Features: * Integrated monolithic GaAs amplifier and stepattenuator.* Compatible with all digital and analog modulation types.* Frequency range: 5 - 100 MHz.* Gain: 0 - 30 dB, variable in 2 dB steps...

ARA05050S12-1 Data Sheet

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Part Number:
ARA05050S12-1
Supply Ability:
5000

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  • 1~5000
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  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

* Integrated monolithic GaAs amplifier and step attenuator.
* Compatible with all digital and analog modulation types.
* Frequency range: 5 - 100 MHz.
* Gain: 0 - 30 dB, variable in 2 dB steps.
* 5 Volt operation.
* Low noise figure.
* Low distortion.
* Amplifier shutdown capability.
* Low cost.
* High reliability.
* Low signal to noise ratio at all gain levels. 


Pinout

Connection Diagram 


Specifications

ELECTRICAL CHARACTERISTICS (TYPICAL) (VDD=5 VDC, TC=25 °C)
Plarameter Min Typ Max Unit Comments
1
Gain 		30 32 33 dB At 0dB attenuation setting
1
Gain Flatness 		- 0.75 1.5 dB 5 to 100 MHz
1
Attenuation Steps
2 dB
4 dB
8 dB
16 dB		 1.6
3.8
8.0
16.0		 1.85
4.0
8.3
16.6		 2.2
4.2
8.5
17.0		 dB 3
5 to 42 MHz
nd 2
2 Harmonic Distortion Level
5 MHz
25 MHz		 -
-		 -60
-63		 -55
-55		 dBc  
rd 2
3 Harmonic Distortion Level
5 MHz
25 MHz		 -
-		 -63
-63		 -60
-60		 dBc  
rd
3 Order Output Intercept Point		 78 - - dBmV  
1dB Gain Compression Point - 70 - dBmV  
Noise Figure - 1.7 2.5 dB  
Output Noise Power
Active/No Signal/Min Attn. Setting
Active/No Signal/Max Attn. Setting		 -
-		 -
-		 -24.6
-41.6		 dBmV Any 3200 KHz bandwidth from
5 to 42 MHz
On/Off Isolation
Shut Off Stage 2
Shut Off Stages 1 & 2		 -
 30
53.5		 -
-		 dB Difference in output signal level
between active and standby
1
Input Impedance		 - 75 - ohm  
1
Input Return Loss		 - -20 -15 dB  
1
Output Impedance		 - 75 - ohm  
1
Ouput Return Loss		 - -20 -15 dB  
V , V
DD1 DD2		 - 5 7 v  
V Digital
DD		 - 5 - v  
V Shutdown -2 - -1.5 v  
I
DD1		 - 75 95 mA  
I
DD2		 - 100 130 mA  
I Digital
DD		 - 8 - mA  
Power Consumption - 1 1.2 w  
Attenuator Control Impedance - 5 K - ohm  
4
Attenuator Control Logic
VIL
VIH		 0
2.8		 -
-		 0.5
6.5		 Volts  

 

ABSOLUTE MAXIMUM RATINGS
Parameter Absolute Maximum Unit
V (Pins 4,12, 18)
DD		 9 VDC
V (Pins 10, 24)
RFIN		 0 to -3 VDC
ATT (Pin 3) ATT (Pin 26)
IN OUT		 5 VDC
V (Pins 11, 25)
ISET		 2 VDC
RF Input Voltage (Pins 10, 24)* +60 dBmV
Storage Temperature -55 to +200 °C
Soldering Temperature 260 °C
Soldering Time 5 Sec
Operating Case Temperature -40 to +85 °C

 




Description

The ARA05050 is a GaAs IC designed to perform thereverse path amplification and output level control  functions in a CATV Set-Top Box or Cable Modem.  ARA05050S12-1 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.  ARA05050S12-1 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 that ARA05050S12-1 does not require an output balun to achieve  -55 dBc 2nd harmonic performance at +58 dBmV output  levels.  Both the input and output are  matched to 75 ohms.  The precision  attenuator provides up to 30 dB of  attenuation in 2 dB increments.  The  ARA05050 is supplied in a 28-pin SSOP  package featuring a thermal heat slug on  the bottom of the package.  Soldering this heat slug to the ground plane of the PC board ensures the lowest possible thermal resistance for the device resulting in a long MTF.

 


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