MAATGM0001 Attenuator dc – 6.0 GHz Rev A Preliminary Information Features ♦ ♦ ♦ ♦ ♦ 6 Bit Attenuator Range 35dB Coverage, LSB = 0.56dB TTL Control Inputs MSAG™ Process 5mm, 28 Lead, PQFN Package TG0001 Description The MAATGM0001 is a 6-bit Attenuator with Parallel Input Control. This product is fully matched to 50 ohms on both the input and output. Fabricated using M/A-COM’s repeatable, high performance and highly reliable GaAs Multifunction Self-Aligned Gate MESFET Process, each device is 100% RF tested on wafer to ensure performance compliance. M/A-COM’s MSAG™ process features robust silicon-like manufacturing processes, planar processing of ion implanted transistors, multiple implant capability enabling power, low-noise, switch and digital FETs on a single chip, and polyimide scratch protection for ease of use with automated manufacturing processes. The use of refractory metals and the absence of platinum in the gate metal formulation prevents hydrogen poisoning when employed in hermetic packaging. Primary Applications ♦ Satellite Communication ♦ Phased Array Radar Maximum Ratings1 Parameter Symbol Absolute Maximum Units Input Power PIN 36 dBm Source Supply Voltage VEE -6 V Junction Temperature TJ 170 °C Storage Temperature TSTG -55 to +150 °C 1. Operation beyond these limits may result in permanent damage to the part. Recommended Operating Conditions2 Characteristic Symbol Min Typ Max Unit Control Voltage A1 thru A6 Logic High 2.8 5 5 V Logic Low 0 0 0.8 V 150 °C -4.8 V Junction Temperature TJ Digital Supply Voltage VEE -5.2 -5 2. Operation outside of these ranges may reduce product reliability. 1 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. MAATGM0001 Attenuator dc – 6.0 GHz Rev A Preliminary Information Electrical Characteristics: TB = 25°C, Z0 = 50Ω, VEE = -5V Parameter Symbol Typical Units Bandwidth f dc - 6 GHz Reference State Insertion Loss IL 4 dB Input VSWR (All States) VSWR 1.5:1 Output VSWR (All States) VSWR 1.5:1 RMS Attenuation Error RMS 2 dB RMS Attenuation Error — Calibrated RMS 0.2 dB Attenuation Range ∆G 35 dB Phase Variation over all Attenuator settings ∆Ф <8 ° Digital Supply Current IEE <10 mA Input Third Order Intercept ITOI 36 dBm Input 1-dB Compression Point P1dB 26 dBm Truth Table3 Pin 22 23 24 25 26 27 28 Designation A6 A5 A4 VEE A3 A2 A1 Description 18.0dB Attenuation Bit : MSB 9.0dB Attenuation Bit 4.5dB Attenuation Bit DC Suply Voltage 2.25db Attenuation Bit 1.12dB Attenuation Bit 0.56dB Attenuation Bit : LSB Level Logic High Logic High Logic High -5V Logic High Logic High Logic High State Attenuation ≈ 18.0dB Attenuation ≈ 9.0dB Attenuation ≈ 4.5dB ON Attenuation ≈ 2.25dB Attenuation ≈ 1.12dB Attenuation ≈ 0.56dB 3. All Attenuation Bits at Logic Low = Reference State. Operating Instructions This device is static sensitive. Please handle with care. To operate the device, follow these steps. 1. Apply VEE = -5 V. 2. Apply Logic Voltages to control circuit as listed in Recommended Operating Conditions Table. 3. Power Down. Set VEE = 0. 2 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.82982 Visit www.macom.com for additional data sheets and product information. MAATGM0001 Attenuator dc – 6.0 GHz Rev A Preliminary Information 10 6 5.0 Insertion Loss Output VSWR 8 Average Error 4.0 Input VSWR RMS Error 3.0 5 RMS Error - Calibrated 4 4 3 2 2 0 1 Attenuation Error (°) 6 VSWR Insertion Loss (dB) 2.0 1.0 0.0 -1.0 -2.0 -3.0 -4.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 -5.0 0.0 6.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 5.0 5.5 6.0 Frequency (GHz) Frequency (GHz) Figure 2. Attenuator Figures of Merit: Average Error, RMS Error, and Calibrated RMS Error Over All States vs. Frequency Figure 1. Reference State Insertion Loss, Input and Output VSWR vs. Frequency 45 0 -5 30 Relative Phase Shift (°) -10 Gain (dB) -15 -20 -25 -30 15 0 -15 -35 -30 -40 -45 -45 0.0 1.0 2.0 3.0 4.0 5.0 0.0 6.0 0.5 1.0 1.5 2.0 3.0 3.5 4.0 4.5 Figure 4. Relative Phase Shift vs. Frequency Over All Attenuator States Figure 3. Relative Gain vs. Frequency Over All Attenuator States 6 6 5 5 Output VSWR Input VSWR 2.5 Frequency (GHz) Frequency (GHz) 4 3 2 4 3 2 1 1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Frequency (GHz) 4.0 4.5 5.0 5.5 Figure 5. Input VSWR vs. Frequency Over All Attenuator States 3 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. 6.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Frequency (GHz) Figure 6. Output VSWR vs. Frequency Over All Attenuator States • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. 6.0 MAATGM0001 Attenuator dc – 6.0 GHz Rev A Preliminary Information Figure 7. 5mm PQFN 28 Lead Package Drawing Reference JEDEC M0-220 (see http://www.jedec.org), VAR. VJJC-3 (Issue E) for additional dimensional and tolerance information. VE E A6 A5 A4 VEE A3 A2 A1 0.1 μ F 6 CONTROL INPUTS T G0001 Figure 8. Recommended Bias Configuration Note: The exposed pad centered on the package bottom must be connected to RF and dc ground for proper electrical and thermal operation. Refer to M/A-COM Application Note Surface Mounting Instructions for PQFN Packages #S2083* for assembly guidelines. Additional Precaution: All parts must receive a bake-out of 125ºC for 24 hours prior to any solder reflow operation. *Application Notes can be found by going to the Site Search Page of M/A-COM’s web page (http://www.macom.com/search/search.jsp) and searching for the required Application Note. 4 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Attenuator dc – 6.0 GHz MAATGM0001 Rev A Preliminary Information Figure 9. Demonstration Board PN MAATGM0001-SMB (available upon request). 5 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information.