HMC425A v01.0317 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz Typical Applications Features The HMC425ALP3E is ideal for: 0.5 dB LSB Steps to 31.5 dB WLAN & Point-to-Multi-Point Single Control Line Per Bit Fiber Optics & Broadband Telecom 0.5 dB Typical Bit Error Microwave Radio & VSAT Single +5V Supply Military 3x3 mm SMT Package Functional Diagram General Description HMC425ALP3E are broadband 6-bit GaAs IC digital attenuators in low cost leadless surface mount packages. Covering 2.2 GHz to 8.0 GHz, the insertion loss is less than 4.5 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 +40 dBm. Six control voltage inputs, toggled between 0 and +3 to +5V, are used to select each attenuation state. A single VDD bias of +3 to +5V is required. Electrical Specifications T = +25 C, With VDD = +5V & VCTL= 0/+5V (Unless Otherwise Noted) A Parameter Frequency Min. Typ. Max. Units 2.2 - 6.0 GHz 3.5 4 dB Insertion Loss 6.0 - 8.0 GHz 4.5 4.7 dB Attenuation Range 2.2 - 8.0 GHz 31.5 dB Return Loss (RF1 & RF2, All Atten. States) 2.2 - 8.0 GHz 15 dB Attenuation Accuracy All States 2.2 - 8.0 GHz (0.5 + 5% of Atten. Setting Max.) dB (Referenced to Insertion Loss) VDD= 5V 25 dBm Input Power for 0.1 dB Compression 2.2 - 8.0 GHz VDD = 3V 23 dBm Input Third Order Intercept Point REF - 16.0 dB States 45 dBm 2.2 - 8.0 GHz (Two-Tone Input Power= 0 dBm Each Tone) 16.5 - 31.5 dB States 40 dBm Switching Characteristics 2.2 - 8.0 GHz t , t (10/90% RF) 400 ns RISE FALL t , t (50% CTL to 10/90% RF) 420 ns ON OFF Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price, delivery, and to place orders: Analog Devices, Inc., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 781-329-4700 Order online at www.analog.com 1 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D ATTENUATORS - SMTHMC425A v01.0317 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz Return Loss RF1, RF2 Insertion Loss (Only Major States are Shown) 0 0 -2 -5 -4 -10 -6 -15 -8 -20 -10 -25 12345 67 8 9 10 12345 67 8 9 10 FREQUENCY (GHz) FREQUENCY (GHz) +25 C +85 C -40 C 0.5 dB 4 dB 31.5 dB 1 dB 8 dB 2 dB 16 dB Normalized Attenuation Bit Error vs. Attenuation State (Only Major States are Shown) 0 2 -5 1 -10 -15 0 -20 -25 -1 -30 -35 -2 12345 67 8 9 10 0 4 8 12 16 20 24 28 32 FREQUENCY (GHz) ATTENUATION STATE (dB) 0.5 dB 4 dB 31.5 dB 2.4 GHz 5.5 GHz 1 dB 8 dB 2 dB 16 dB 3.5 GHz 8 GHz Bit Error vs. Frequency Relative Phase vs. Frequency (Only Major States are Shown) (Only Major States are Shown) 2 80 1.5 60 1 40 0.5 20 0 0 -0.5 -20 -1 -40 0.5 dB 4 dB 31.5 dB 0.5 dB 4 dB 31.5 dB 1 dB 8 dB 1 dB 8 dB -1.5 2 dB 16 dB 2 dB 16 dB -60 -2 -80 12345 67 8 9 10 12345 67 8 9 10 FREQUENCY (GHz) FREQUENCY (GHz) For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 781-329-4700 Order online at www.analog.com 2 Application Support: Phone: 1-800-ANALOG-D BIT ERROR (dB) NORMALIZED ATTENUATION (dB) INSERTION LOSS (dB) RELATIVE PHASE (Deg) BIT ERROR (dB) RETURN LOSS (dB) ATTENUATORS - ANALOG - SMT