HMC291SE v05.1216 4 dB LSB SILICON 2-BIT POSITIVE CONTROL DIGITAL ATTENUATOR, 0.7 - 4.0 GHz Typical Applications Features The HMC291SE is ideal for: RoHS Compliant Product Cellular 4 dB LSB Steps to 12 dB PCS, ISM, MMDS Single Positive Control Per Bit, 0/+3V or +5V WLL Handset & Base Station Typical Step Error : 0.3 dB 2 Miniature SOT 26 Package: 9 mm Functional Diagram General Description The HMC291SE is a general purpose broadband 2-bit positive control silicon IC digital attenuator in 6 lead SOT26 surface mount plastic package. The insertion loss is typically in between 0.4 dB - 1 dB through operating frequency range. The attenuator bit values are 4 (LSB) and 8 dB for a total attenuation of 12 dB. State error is excellent at 0.4 dB typical with an IIP3 of up to 57 dBm. Two bit control voltage inputs, toggled between 0V and +3V or +5V, are used to select each attenuation state at less than 25 A each. A single VDD supply voltage of +3V to +5V applied through an external 4.7K Ohm resistor is required. Electrical Specifications, T = +25C, VDD = +3V to +5V & VCTL = 0/VDD (Unless Otherwise Stated) A Parameter Frequency Min. Typical Max. Units Insertion Loss 0.7 - 1.4 GHz 0.5 0.65 dB 1.4 - 2.3 GHz 0.5 0.65 dB 2.3 - 2.7 GHz 0.6 0.7 dB 2.7 - 4.0 GHz 0.8 1.32 dB Attenuation Range 0.7 - 4.0 GHz 12 dB Return Loss 0.7 - 1.4 GHz 20 25 dB (RF1 & RF2, All Atten. States) 1.4 - 4.0 GHz 17 27 dB State Error All Attenuation States 0.7 - 1.4 GHz (0.1 + 4% of Atten. Setting Max) dB All Attenuation States 1.4 - 2.3 GHz (0.2 + 2% of Atten. Setting Max) dB All Attenuation States 2.3 - 2.7 GHz (0.4 + 3% of Atten. Setting Max) dB All Attenuation States 2.7 - 4.0 GHz (0.4 + 4% of Atten. Setting Max) dB 1 Input Power for 0.1 dB Compression (Input P0.1dB) 0.7 - 4.0 GHz 5V 28 dBm 3V 27 dBm Input Third Order Intercept Point (IIP3) 5V 0.7 - 4.0 GHz 52 57 59 dBm (Two-tone Input Power = 15 dBm Each Tone) 3V 52 54 56 dBm 0.7 - 4.0 GHz Switching Characteristics t , t (10/90% RF) RISE FALL 250 ns t , t (50% CTL to 10/90% RF) ON OFF 300 ns 1 Compression point is above maximum input power 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 - ANALOG - SMTHMC291SE v05.1216 4 dB LSB SILICON 2-BIT POSITIVE CONTROL DIGITAL ATTENUATOR, 0.7 - 4.0 GHz Insertion Loss Return Loss RF1, RF2 -10 0 -15 -20 -0.5 -25 -30 -1 -35 -40 -45 -1.5 0.5 1 1.5 2 2.5 3 3.5 4 0.5 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz) FREQUENCY (GHz) RF1 - IL RF1 - 12 dB RF2 - 8 dB RF1 - 4 dB RF2 - IL RF2 - 12 dB +25C +85C -40C RF1 - 8 dB RF2 - 4 dB Normalized Attenuation vs. Attenuation State State Error vs. Attenuation State 0 0.6 0.4 -2 0.2 -4 0 -6 -0.2 -8 -0.4 -10 -0.6 -12 -0.8 -14 -1 0.5 1 1.5 2 2.5 3 3.5 4 0.5 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz) FREQUENCY (GHz) 4 dB 8 dB 12 dB 4 dB 8 dB 12 dB Step Error vs. Frequency Relative Phase vs. Frequency 0.6 60 0.4 50 0.2 40 0 30 -0.2 20 -0.4 10 -0.6 0 -0.8 -10 -1 -20 0.511.52 2.533.54 0.5 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz) FREQUENCY (GHz) 4 dB 8 dB 12 dB 4 dB 8 dB 12 dB 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 STEP ERROR (dB) NORMALIZED ATTENUATION (dB) INSERTION LOSS (dB) RELATIVE PHASE (deg.) STATE ERROR (dB) RETURN LOSS (dB) ATTENUATORS - ANALOG - SMT