ATTENUATORS - DIGITAL - SMT
v04.0709
5 Typical Applications The HMC424G16 is ideal for: • Telecom Infrastructure • Mili...
ATTENUATORS - DIGITAL - SMT
v04.0709
5 Typical Applications The HMC424G16 is ideal for: Telecom Infrastructure Military Radios, Radar & ECM Space Applications Test Instrumentation
Functional Diagram
HMC424G16
0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 3 GHz
Features
0.5 dB LSB Steps to 31.5 dB Single Control Line Per Bit ±0.5 to ±0.8 dB Typical Bit Error 16 Lead Hermetic SMT Package
General Description
The HMC424G16 is a broadband 6-bit GaAs IC digital attenuator in a 16 lead glass/metal (hermetic) surface mount package. Covering DC to 3 GHz, the insertion loss is less than 3 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 at less than 70 μA each. 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 - 3 GHz
3.0
3.6
Attenuation Range
DC - 3 GHz
31.5
Return Loss (RF1 & RF2, All Atten. States)
DC - 3 GHz
12
Attenuation Accuracy: (Referenced to Insertion Loss)
All States All States
DC - 2.0 GHz 2.0 - 3.0 GHz
± 0.4 + 4% of Atten. Setting Max ± 0.5 + 5% of Atten. Setting Max
Input Power for 0.1 dB Compression
1.0 - 3.0 GHz
22
Input Third Order Intercept ...