HMC939 v01.0511 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 40 GHz Typical Applications Features t he h MC939 is ideal for: 1.0 dB LSB Steps to 31 dB Fiber Optics & Broadband Telecom Single Positive Control Line Per Bit p Microwave Radio & VSAT 1.0 dB Typical Bit Error Military Radios, Radar & ECM High Input IP3: +43 dBm Space Applications Die Size: 2.29 x 0.95 x 0.1 mm t g Functional Diagram General Description The HMC939 die is a broadband 5-bit GaAs IC digital attenuator MMIC chip. Covering 0.1 to 40 GHz, the insertion loss is less than 5 dB typical. The attenuator bit values are 1.0 (LSB), 2, 4, 8, 16 for a t total attenuation of 31 dB. Attenuation accuracy is excellent at less than 1.0 dB typical step error with an IIP3 of +43 dBm. Five control voltage inputs, toggled between +5V and 0V, are used to select each attenuation state. un t t Electrical Specifications, T = +25 C, With Vdd = +5V, Vss = -5V & VCTL = 0/ +5V A Parameter Frequency (GHz) Min. Typ. Max. Units 0.1 - 18 GHz 3.5 5.0 dB Insertion Loss 18 - 40 GHz 6.0 7.5 dB Attenuation Range 0.1 - 40 GHz 31 dB Return Loss (RF1 & RF2, All Atten. States) 0.1 - 40 GHz 12 dB Attenuation Accuracy: (Referenced to Insertion Loss) 1.0 - 15 dB States 0.1 - 40 GHz 0.5 + 5% of Atten. Setting Max dB 16 - 31 dB States 0.1 - 40 GHz 0.6 + 6% of Atten. Setting Max dB 0.1 - 0.5 g h z 20 dBm Input Power for 0.1 dB Compression 0.5 - 40.0 GHz 25 dBm Input Third Order Intercept Point 0.1 - 0.5 g h z 40 dBm (Two-Tone Input Power= 0 dBm Each Tone) 0.5 - 40.0 GHz 43 dBm Switching Characteristics 0.1 - 40 GHz tRISE, tFALL (10/90% RF) 60 ns tON/tOFF (50% CTL to 10/90% RF) 90 ns idd 0.1 - 40 GHz 3 5 7 mA iss 0.1 - 40 GHz -4 -6 -8 mA 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: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 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: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 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. 0 - 1 Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D Application Support: Phone: 978-250-3343 or apps hittite.com Ae Ao rs - Dii Al - Ch iHMC939 v01.0511 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 40 GHz Normalized Attenuation (Only Major States are Shown) Insertion Loss vs. Temperature 0 0 -1 -5 -2 +25 C p +85 C -10 -3 -55 C -15 -4 -5 -20 -6 -25 -7 -30 -8 -9 -35 0 5 10 15 20 25 30 35 40 45 50 0 5 10 15 20 25 30 35 40 45 50 t g FREQUENCY (GHz) FREQUENCY (GHz) Input Return Loss Output Return Loss (Only Major States are Shown) (Only Major States are Shown) 0 0 t -10 -10 -20 -20 un -30 -30 t t -40 -40 -50 -50 0 5 10 15 20 25 30 35 40 45 50 0 5 10 15 20 25 30 35 40 45 50 FREQUENCY (GHz) FREQUENCY (GHz) Bit Error vs. Frequency (Only Major States are Shown) Bit Error vs. Attenuation State 2 3 1.6 2 1.2 31 dB 0.8 1 0.4 0 0 -0.4 -1 -0.8 10 GHz 20 GHz -1.2 40 GHz -2 -1.6 -2 -3 0 5 10 15 20 25 30 35 40 45 50 0 4 8 12 16 20 24 28 32 ATTENUATION STATE (dB) 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: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 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: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 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. 0 - 2 Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D Application Support: Phone: 978-250-3343 or apps hittite.com BIT ERROR (dB) RETURN LOSS (dB) INSERTION LOSS (dB) BIT ERROR (dB) RETURN LOSS (dB) NORMALIZED ATTENUATION (dB) Ae Ao rs - Dii Al - Ch i