HMC539ALP3/539ALP3E v01.0416 0.25 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 4 GHz Typical Applications Features The HMC539ALP3/539ALP3E is ideal for both RF 0.25 dB LSB Steps to 7.75 dB and IF applications: 0.05 dB Typical Step Error Cellular Infrastructure Low Insertion Loss: 0.7 dB ISM, MMDS, WLAN, WiMAX, WiBro High IP3: +62 dBm Microwave Radio & VSAT Single Control Line Per Bit TTL/CMOS Compatible Control Test Equipment and Sensors Single +3V to +5V Supply Functional Diagram 3x3 mm SMT Package General Description The HMC539ALP3/539ALP3E is a broadband 5-bit GaAs IC digital attenuator in a low cost lead- less surface mount package. This single positive control line per bit digital attenuator utilizes an off chip AC ground capacitor for near DC operation, making it suitable for a wide variety of RF and IF applications. Covering DC to 4 GHz, the inser- tion loss is less than 0.7 dB typical. The attenuator bit values are 0.25 (LSB), 0.5, 1, 2, and 4 dB for a total attenuation of 7.75 dB. Attenuation accuracy is excellent at 0.05 dB typical step error. The attenu- ator also features a high IIP3 of +62 dBm. Five TTL/ CMOS control inputs are used to select each attenua- tion state. A single Vdd bias of +3V to +5V is required. Electrical Specifications, T = +25 C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted) A Parameter Frequency (GHz) Min. Typ. Max. Units DC - 1.5 GHz 0.7 1.0 dB Insertion Loss 1.5 - 3.0 GHz 1.0 1.3 dB 3.0 - 4.0 GHz 1.3 1.7 dB Attenuation Range DC - 4 GHz 7.75 dB DC - 3 GHz 27 dB Return Loss (RF1 & RF2, All Atten. States) 3.0 - 4.0 GHz 25 dB Attenuation Accuracy: DC - 3 GHz (0.2 + 2% of Atten. Setting) Max. dB All States (Referenced to Insertion Loss) 3.0 - 4.0 GHz (0.2 + 4% of Atten. Setting) Max. dB Input Power for 0.1 dB Compression 0.1 - 4.0 GHz 32 dBm Input Third Order Intercept Point 0.1 - 4.0 GHz 62 dBm (Two-Tone Input Power= 15 dBm Each Tone) Switching Characteristics DC - 4 GHz tRISE, tFALL (10/90% RF) 45 ns tON, tOFF (50% CTL to 10/90% RF) 52 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., 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 - DIGITAL - SMTHMC539ALP3/539ALP3E v01.0416 0.25 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 4 GHz Return Loss RF1, RF2 (Only Major States are Shown) Insertion Loss 0 0 -0.5 -9 -1 -18 -1.5 -27 -2 -36 -2.5 -3 -45 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 FREQUENCY (GHz) FREQUENCY (GHz) IL 1dB 7.75 dB +25 C +85 C -40 C 0.25 dB 2dB 0,.5 dB 4 dB Normalized Attenuation (Only Major States are Shown) Bit Error vs. Attenuation State 0 0.5 -2 0.25 -4 0 -6 -0.25 -8 -10 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 012345678 ATTENUATION STATE (dB) FREQUENCY (GHz) 40 MHz 1 GHz 4 GHz 0.25 dB 1 dB 4 dB 100 MHz 2 GHz 0.5 dB 2 dB 7.75 dB 500 MHz 3 GHz Bit Error vs. Frequency Relative Phase vs. Frequency (Only Major States are Shown) (Only Major States are Shown) 0.35 20 15 0.25 10 0.15 5 0.05 0 -5 -0.05 -10 -0.15 -15 -0.25 -20 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 FREQUENCY (GHz) FREQUENCY (GHz) 0.25 dB 1 dB 4 dB 0.25 dB 1 dB 4 dB 0.5 dB 2 dB 7.75 dB 0.5 dB 2 dB 7.75 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 BIT ERROR (dB) NORMALIZED ATTENUATION (dB) INSERTION LOSS (dB) RETURN LOSS (dB) RELATIVE PHASE (deg) BIT ERROR (dB) ATTENUATORS - DIGITAL - SMT