MMS004AA DC to 50 GHz MMIC Low Power Voltage Controlled Attenuator Features * Wideband operation: DC to 50 GHz * Low Insertion Loss (<5 dB) * Good Input/Output Match * High Attenuation (max. 27 dB) * Very flat Attenuation * Size: 1640 x 920 mm Description The MMS004AA is a low-power high-attenuation DC-50 GHz PHEMT FET attenuator. The performance of the device is controlled by two bias voltages, Vseries and Vshunt. The bias voltages control the match and attenuation of the device when varied between -1V and +0.5V DC. Please refer to the tables of recommended bias settings optimized for flat insertion loss and flat attenuation for additional information. Application The MMS004AA MMIC voltage controlled attenuator is ideal for high frequency and broadband applications in test equipment, commercial and military systems. The attenuator is especially suited for applications needing a large amount of adjustable attenuation and fast attenuation control from DC to millimeter frequencies. The device is also useful as a general purpose building block in communications systems. Key Characteristics: Zo=50 Parameter Description Min Typ Max Attenuation (dB) DC to 50GHz 0 - 27 Flatness (dB) DC to 50GHz - 1.0 - Insertion Loss (dB) DC to 50GHz - - 5 S11 (dB) DC to 50GHz - -12 -10 S22 (dB) DC to 50GHz - -12 -10 1dB Gain Compression 0 to 15dB 5 6 - P1dB (dBm) SMD-00177 Rev D Subject to Change Without Notice 1 of 5 MMS004AA Optimized for Flat Attenuation (Typical) MMS004AA Attenuation Typical on wafer measured performance Vseries (V) Vshunt (V) Att. (dB)* -0.637 0.5 30 -0.6 0.5 28 -0.575 0.062 26 -0.555 -0.142 24 -0.539 -0.252 22 -0.527 -0.334 20 -0.509 -0.375 18 -0.478 -0.425 15.5 -0.463 -0.45 14 -0.512 -0.506 12 -0.505 -0.534 10 -0.45 -0.55 8 -0.288 -0.562 6 0.25 -0.588 4 -0.25 -0.65 2 0.5 -1 0 Optimized for Flat Insertion Loss (Typical) MMS004AA Insertion Loss Typical on wafer measured performance Vseries (V) Vshunt (V) Att. (dB)* -0.688 0.5 35.5 -0.637 0.5 33.5 -0.6 0.45 31.6 -0.6 -0.15 29.8 -0.584 -0.255 27.7 -0.567 -0.315 25.7 -0.553 -0.364 23.7 -0.541 -0.408 21.7 -0.53 -0.446 19.7 -0.55 -0.5 17.6 -0.512 -0.506 15.7 -0.503 -0.539 13.7 -0.45 -0.55 11.8 -0.25 -0.562 9.6 -0.025 -0.592 7.6 0.387 -0.638 5.6 0.5 -1 3.6 Note: (*) Midband SMD-00177 Rev D Subject to Change Without Notice 2 of 5 MMS004AA MMS004AA S11 MMS004AA S22 Typical on wafer measured performance Typical on wafer measured performance Table 1: Supplemental Specifications Parameter Description Min Typ Max Vseries Attenuation Control Voltage -2V - 0.5V Vshunt Attenuation Control Voltage -2V - 0.5V DC feedback circuit input 0V 0.2V 1V Dcout DC feedback circuit output 0V 0.2V 1V GND Backside Ground Plane - - - Tch Channel Temperature - - 150C ch Thermal Resistance (Tcase=85C) - 60 C/Watt - Dcin SMD-00177 Rev D Subject to Change Without Notice 3 of 5 MMS004AA Typical Measured Performance on Evaluation Package MMS004AA Simplified Schematic Diagram Pick-up and Chip Handling: This MMIC has exposed air bridges on the top surface. Do not pick up chip with vacuum on the die center; handle from edges or use a collet. ESD Handling and Bonding: This MMIC is ESD sensitive; preventive measures should be taken during handling, die attach, and bonding. Epoxy die attach is recommended. Please review our application note MM-APP-0001 handling and die attach recommendations, on our website for more handling, die attach and bonding information. SMD-00177 Rev D Subject to Change Without Notice 4 of 5 MMS004AA Physical Characteristics of MMS004AA Assembly Diagram of MMS004AA SMD-00177 Rev D Subject to Change Without Notice 5 of 5 MMS004AA Information contained in this document is proprietary to Microsem. This document may not be modified in any way without the express written consent of Microsemi. Product processing does not necessarily include testing of all parameters. Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. Microsemi Corporate Headquarters Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor One Enterprise, Aliso Viejo CA 92656 USA and system solutions for communications, defense and security, aerospace, and industrial Within the USA: +1 (949) 380-6100 markets. Products include high-performance and radiation-hardened analog mixed-signal Sales: +1 (949) 380-6136 integrated circuits, FPGAs, SoCs, and ASICs; power management products; timing and Fax: +1 (949) 215-4996 synchronization devices and precise time solutions, setting the world's standard for time; voice processing devices; RF solutions; discrete components; security technologies and scalable anti-tamper products; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif. and has approximately 3,400 employees globally. Learn more at www.microsemi.com. (c) 2014 Microsemi Corporation. All rights reserved. Microsemi and the Microsemi logo are trademarks of Microsemi Corporation. All other trademarks and service marks are the property of their respective owners. SMD-00177 Rev D Subject to Change Without Notice 6 of 5