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HMC274QS16 / HMC274QS16E

1 dB LSB 5-Bit Digital Attenuator SMT, 0.7 - 2.7 GHz

Product Details

Data Sheet
Application Notes
Package Layout
S-Parameters
Tape & Reel
ECCN: EAR99

Quality & Reliability

Environmental Data Sheet
Qualification Test Reports

Press & Media

Designer & Eval Kits
Freq. (GHz) Function Loss (dB) Atten. Range (dB) IIP3 (dBm) Control Input (Vdc) Package
0.7 - 2.7 5-Bit Digital 2.3 1 to 31 54 0/ +3V QS16

Features

• 1 dB LSB Steps to 31 dB
• Single Positive Control (+3 to +5V)/Bit
• ±0.5 dB Typical Bit Error
• Small QSOP16 Plastic Package
• Included in the
  HMC-DK004 Designer’s Kit

Typical Applications

• Cellular/PCS/3G Infrastructure
• 2.4 GHz ISM Radios
• Wireless Data

Functional Diagram


HMC274QS16 Functional Diagram

General Description

The HMC274QS16(E) is a broadband 5-bit positive control GaAs IC digital attenuator in a 16 lead QSOP plastic package. Covering 0.7 to 2.7 GHz the insertion loss is typically less than 2.3 dB. The attenuator bit values are 1 (LSB), 2, 4, 8, and 16 dB for a total attenuation of 31 dB. Accuracy is excellent at ± 0.5 dB typical with an IIP3 of up to +50 dBm. Five bit control voltage inputs, toggled between 0 and +3 to +5 volts, are used to select each attenuation state. A single Vdd bias of +3 to +5 volts applied through an external 5K Ohm resistor is required.