HMC425LP3 / 425LP3E v03.0409 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz 5 Typical Applications Features The HMC425LP3 / HMC425LP3E 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 The HMC425LP3 & HMC425LP3E are broadband 6-bit GaAs IC digital attenuators in low cost leadless surface mount packages. Covering 2.2 to 8.0 GHz, the insertion loss is less then 3.8 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 Specifi cations, T = +25 C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted) A Frequency Parameter Min. Typ. Max. Units (GHz) 2.2 - 6.0 GHz 3.5 3.8 dB Insertion Loss 6.0 - 8.0 GHz 3.8 4.3 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 22 dBm Input Power for 0.1 dB Compression 2.2 - 8.0 GHz Vdd = 3V 19 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 35 dBm Switching Characteristics 2.2 - 8.0 GHz tRISE, tFALL (10/90% RF) 160 ns tON, tOFF (50% CTL to 10/90% RF) 180 ns Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price, delivery, and to place orders: Analog Devices, Inc., For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 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 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Phone: 781-329-4700 Order online at www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. 5 - 116 Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D Order On-line at www.hittite.com ATTENUATORS - DIGITAL - SMTHMC425LP3 / 425LP3E v03.0409 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz Return Loss RF1, RF2 5 (Only Major States are Shown) Insertion Loss 0 0 0.5 dB 8 dB 1 dB 16 dB -2 -5 2 dB 31.5 dB 4 dB -4 -10 +25 C -6 -15 +85 C -40 C -8 -20 -10 -25 12 34 567 8 9 10 12 34 567 8 9 10 FREQUENCY (GHz) FREQUENCY (GHz) Normalized Attenuation (Only Major States are Shown) Bit Error vs. Attenuation State 2 0 -5 1 -10 -15 0 -20 0.5 dB 8 dB 1 dB 16 dB 2 dB 31.5 dB -25 4 dB 2.4 GHz -1 3.5 GHz 5.5 GHz -30 8.0 GHz -35 -2 12 34 567 8 9 10 0 4 8 12 16 20 24 28 32 FREQUENCY (GHz) ATTENUATION STATE (dB) Bit Error vs. Frequency Relative Phase vs. Frequency (Only Major States are Shown) (Only Major States are Shown) 2 80 0.5 dB 1.5 60 1 dB 2 dB 1 4 dB 8 dB 40 16 dB 0.5 31.5 dB 0 20 -0.5 0 -1 0.5 dB 8 dB 1 dB 16 dB -20 2 dB 31.5 dB -1.5 4 dB -2 -40 12 34 567 8 9 10 12 34 567 8 9 10 FREQUENCY (GHz) FREQUENCY (GHz) Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price, delivery, and to place orders: Analog Devices, Inc., For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 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 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Phone: 781-329-4700 Order online at www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. 5 - 117 Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D Order On-line at www.hittite.com INSERTION LOSS (dB) BIT ERROR (dB) NORMALIZED ATTENUATION (dB) BIT ERROR (dB) RELATIVE PHASE (deg) RETURN LOSS (dB) ATTENUATORS - DIGITAL - SMT