CMD282C3 DC-22 GHz 2-bit Digital Attenuator Product Overview The CMD282C3 is a negative controlled, wideband GaAs MMIC 2-bit digital attenuator housed in a leadless 3x3 mm surface mount package. Each bit of the attenuator is controlled by a single voltage of either 0 V or 5 V. The attenuator bit values are 4 dB and 8 dB, for a total attenuation of 12 dB. The CMD282C3 has a low insertion loss of 1.9 dB at 10 GHz and the attenuation accuracy is typically 0.2 dB step error. The CMD282C3 is a 50 ohm matched design which eliminates the need for RF port Key Features matching. Wideband Performance Low Insertion Loss Functional Block Diagram 12 dB Attenuation Range Pb-Free RoHs Compliant 3x3 QFN Package Ordering Information Part No. Description CMD282C3 100 pcs on 7 reel CMD282C3-EVB Evaluation Board o Electrical Performance (Vee = -5 V, Vctl = 0 / -5 V, TA = 25 C, F = 10 GHz) Parameter Min Typ Max Units Frequency Range DC - 22 GHz Insertion Loss 1.9 dB Attenuation Range 12 dB Input Return Loss 16 dB Output Return Loss 18 dB Input P0.1dB 23 dBm Input IP3 42 dBm Switching Speed 25 ns Data Sheet September 9, 2021 Subject to change without notice 1 of 10 www.qorvo.com CMD282C3 DC-22 GHz 2-bit Digital Attenuator Absolute Maximum Ratings Recommended Operating Conditions Parameter Rating Parameter Min Typ Max Units Bias Voltage, Vee -8 V Vee -5.5 -5 -2.5 V Electrical performance is measured at specific test conditions. Control Voltage, Vctl -8 V Electrical specifications are not guaranteed over all recommended RF Input Power +27 dBm operating conditions. Thermal Resistance, Q 125.3 C/W JC Operating Temperature -40 to 85 C Storage Temperature -55 to 150 C Exceeding any one or combination of the maximum ratings may cause permanent damage to the device. Truth Table Control Voltage Control Voltage Input State Bias Condition Attenuation State High Vee 0.3 V P0 P1 RF1 - RF2 (dB) Low 0 0.3 V 4 dB 8 dB Low Low Reference (insertion loss) High Low 4 Low High 8 High High 12 Any combination of the above states will result in an attenuation approximately equal to the sum of the bits selected. Electrical Specifications (Vee = -5 V, Vctl = 0 / -5 V, TA = 25 C) Parameter Min Typ Max Min Typ Max Min Typ Max Units Frequency Range DC - 10 10 - 18 18 - 22 GHz Insertion Loss 1.5 2.4 2 3 2.3 3.1 dB Attenuation Range 12 12 12 dB Attenuation Accuracy 0.3 0.6 0.8 1.5 2 3 dB Input Return Loss 18 12 9 dB Output Return Loss 20 13 10 dB Input P0.1dB 23 23 23 dBm Input IP3 42 42 42 dBm Note: Specification applies to major states Data Sheet September 9, 2021 Subject to change without notice 2 of 10 www.qorvo.com