0.5dB LSB GaAs MMIC
Attenuators - DIGITAL - SMT
v08.0809
Typical Applications
The HMC424LP3 / HMC424LP3E is ideal for: • Basestation Infras...
Description
Attenuators - DIGITAL - SMT
v08.0809
Typical Applications
The HMC424LP3 / HMC424LP3E is ideal for: Basestation Infrastructure Fiber Optics & Broadband Telecom Microwave & VSAT Radios Military & Space Test Instrumentation
Functional Diagram
HMC424LP3 / 424LP3E
0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 13 GHz
Features
0.5 dB LSB Steps to 31.5 dB Single Control Line Per Bit ± 0.5 dB Typical Bit Error 9mm2 Leadless SMT Plastic Package
General Description
The HMC424LP3 & HMC424LP3E are broadband 6-bit GaAs IC digital attenuators in low cost leadless surface mount packages. Covering DC to 13 GHz, the insertion loss is less then 4 dB typical. The attenuator bit values are 0.5 (LSB), 1, 2, 4, 8, and 16 dB for a total attenuation of 31.5 dB. Attenuation accuracy is excellent at ± 0.5 dB typical step error with an IIP3 of +32 dBm. Six control voltage inputs, toggled between 0 and -5V, are used to select each attenuation state. A single Vee bias of -5V allows operation at frequencies down to DC.
Electrical Specifications, TA = +25° C, With Vee = -5V & VCTL= 0/-5V
Parameter
Frequency (GHz)
Min.
Typ.
Max.
Insertion Loss
DC - 4 GHz 4.0 - 8.0 GHz 8.0 - 13.0 GHz
3.1
3.8
3.5
4.0
4.0
4.6
Attenuation Range
DC - 13.0 GHz
31.5
Return Loss (RF1 & RF2, All Atten. States)
DC - 13.0 GHz
9
12
Attenuation Accuracy: (Referenced to Insertion Loss)
0.5 - 15.5 dB States 16 - 31.5 dB States
DC - 13.0 GHz DC - 13.0 GHz
± (0.3 + 3% of Atten. Setting) Max ± (0.3 + ...
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