Quad PIN Diode p Attenuator 5 .3000 MHz
Description
Quad PIN Diode π Attenuator 5 –3000 MHz
MA4P274-1225T
Features
n n n n n n
Package Outline (Topview)
3 2 1
4 PIN Diodes in SOT-25 Plastic Package Externally Selectable Bias and RF Match Network 5 – 3,000 MHz Useable Frequency Band + 43 dBm IP3@ 1 GHz (50 Ω) 1.
0 dB Loss @ 1 GHz (50 Ω) 30 dB Attenuation @ 1 GHz (50 Ω)
Topview
4 5
Description
M/A-COM's MA4P274-1225 is a wideband, lower insertion loss, high IP3, Quad PIN Diode π Attenuator in a low-cost, surface mount SOT-25 package.
Four PIN Diodes in one package reduce design parasitics and improve circuit density.
PIN Configuration
PIN Function RF In Series Bias RF Out PIN 4 5 Function Shunt 1 Bias Shunt 2 Bias 1 2 3
Applications
These PIN Diode Attenuators perform well where RF Signal Amplitude Control is required in 50 Ω Handset Circuits and 75 Ω Broadband CATV Systems.
Exceptional Insertion Loss, Attenuation Range, and IP3 at <10 mA bias make these devices suitable for better power level control in RF Amplifiers.
Guaranteed Electrical Specifications: @ +25 °C
Parameter Ct @ 0 V Rs @ 1 mA Rs @ 10 mA Vb Minority Carrier Lifetime Power Dissipation Test Conditions 100 MHz 100 MHz 100 MHz D.
C.
( 50 % - 90 % ) Voltage If = + 10mA, Ir = - 6mA Pulse @ 100 kHz Sq Wave D.
C.
and F = 5 – 3,000 MHz Derate linearly to 0 mW at 125 C Using 1,000 deg-C/W Thermal Resistance F = 5 – 3,000 MHz Vshunt 1 & 2 Diode Bias = 0.
75 V Vseries Diode Bias = 0 to 20 V Units pF Ω Ω V nS 125 Min.
Typ.
0.
45 13 2.
3 150 1000 2000 Max.
0.
50 18 3.
0
mW
100
RF Incident Power
dBm
+ 20
Quad PIN Diode π Attenuator Functional Schematic
PIN 2: Series Bias
MA4P274-1225T MA4P274-1225, V 3.
00
PIN 3: RF Out
PIN 1: RF In
PIN 4 : Shunt 1 Bias
PIN 5 : Shunt 2 Bias
Case Style: SOT 25
Dim Inches Millimeters
Absolute Maximum Ratings1
Parameter Operating Temperature Storage Temperature, No Dissipated Power DC Voltage at Temperature Extremes DC Current at 25 °C Mounting Temperature
Min.
A B C D E F G H J .
1103 .
1023 0.
0355 0.
0591 .
0138 .
0031 .
0002 ...
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