MAAD-007080 Digital Attenuator Rev. V5 50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz Features Functional Schematic Attenuation: 1 dB Steps to 50 dB Single Positive Supply Contains Internal DC to DC Converter Low DC Power Consumption Small Footprint, JEDEC Package Integral TTL Driver 50 ohm Impedance Lead-Free CSP-1 Package 100% Matte Tin Plating over Copper Halogen-Free Green Mold Compound 260C Reflow Compatible RoHS* Compliant Version of AT90-1106 Description The MAAD-007080 is a GaAs FET 6-bit digital attenuator with integral TTL driver. Step size is 1 dB providing a 50 dB total attenuation range. This device is in a PQFN plastic surface mount package. MAAD-007080 is ideally suited for use where 1 Pin Configuration accuracy, fast speed, very low power consumption and low costs are required. Pin No. Function Pin No. Function For dual supply designs without switching noise, use 1 C16 17 NC MAAD-007082-000100. 2 C8 18 NC 3 C4 19 +Vcc 4 C2 20 NC 5 C1 21 Cp 6 C32 22 NC Ordering Information 7 GND 23 Cp 8 NC 24 NC Part Number Package 3 9 NC 25 -Vee MAAD-007080-00100 Bulk Packaging 2 10 NC 26 GND MAAD-007080-001TR 1000 piece reel 11 GND 27 RF2 MAAD-0007080-001TB Sample Test Board 12 RF1 28 GND 2 13 GND 29 NC Note: Reference Application Note M513 for reel size 3 information. 14 NC 30 -Vee 15 NC 31 NC 16 NC 32 +Vcc 1. The exposed pad centered on the package bottom must be connected to RF and DC ground. (For PQFN Packages) * Restrictions on Hazardous Substances, European Union 2. Pins 10 & 29 must be isolated Directive 2002/95/EC. 3. -Vee is produced internally and requires a .1F cap to GND. Generated noise is typical of switching DC-DC Converters. 11 1 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: MAAD-007080 Digital Attenuator Rev. V5 50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz Electrical Specifications: T = 25C, Z = 50 A 0 Parameter Test Conditions Frequency Units Min Typ Max Insertion Loss DC - 2.4 GHz dB 5.5 6.0 Individual Bits 1-2-4-8-16-32 dB DC - 2.4 GHz (.3 +5% of atten setting) Attenuation Accuracy dB Any Combination of Bits 1 to 50 dB DC - 2.4 GHz (.5 +8% of atten setting) VSWR Full Range DC - 2.4 GHz Ratio 1.8:1 2:1 50% Cntl to 90%/10% RF 75 Switching Speed ns 10% to 90% or 90% to 10% 20 50 MHz +21 1 dB Compression dBm 0.5 - 2.4 GHz +24 50 MHz +35 Input IP Two-tone inputs up to +5 dBm dB 3 0.5-2.4 GHz +48 Vcc V 4.75 5.0 5.25 V LOW-level input voltage 0.0 0.8 IL V V HIGH-level input voltage 2.0 5.0 IH lin (Input Leakage Current) Vin = V or GND A -1.0 1.0 CC 4 Icc Vcc min to max, Logic 0 or 1 mA 6 10 5 Turn-on Current For guaranteed start-up mA 125 Icc (Additional Supply Current V = Max, Vcntrl = V - 2.1 V mA 1.0 CC CC Per TTL Input Pin) Generated from Switching Noise DC-DC Converter with 3.5 MHz dBm -93 recommended capacitors Thermal Resistance jc C/W 15 4. During turn-on, the device requires an initial Turn-on Current. Once operational, Icc will drop to the specified levels. 5. The DC-DC converter is guaranteed to start in 100 s as long as the power supplies can provide a minimum of 100 mA Turn-on Current. 9 6,7 Recommended PCB Configuration Absolute Maximum Ratings Parameter Absolute Maximum Input Power 0.05 GHz +27 dBm 0.5 - 2.4 GHz +34 dBm V -0.5V V +6.0V CC CC 8 Vin -0.5V Vin V + 0.5V CC Operating Temperature -40C to +85C Storage Temperature -65C to +125C 6. Exceeding any one or combination of these limits may cause permanent damage to this device. 7. MACOM does not recommend sustained operation near these survivability limits. 8. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply. 9. Application Note S2083 is available at www.macom.com. 22 2 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: