MAAD-000523 Digital Attenuator, 6-Bit, Serial / Parallel Control 31.5 dB, 0.7 - 6.0 GHz Rev. V2 VC8 VC16 N/C N/C VC2 N/C VC4 VC1 N/C N/C VC0.5 Integrated CMOS/TTL Compatible Driver Parallel & Serial (P/S) Control with power-up state selection Insertion Loss: 1.6 dB typical @ 2.1 GHz IP3: 50 dBm typical @ 2 GHz Attenuation Accuracy: N/C Functional Schematic 3,4 Features +/-(0.4 + 4% of attenuation setting) dB 0.5-dB Attenuation Steps to 31.5 dB Useable from 0.4 to 8.0 GHz Lead-Free 4 mm 24-Lead PQFN Package Halogen-Free “Green” Mold Compound RoHS* Compliant and 260°C Re-flow Compatible Small Relative Phase Variation per Bit Description The MAAD-000523 is a 6-bit, 0.5-dB step GaAs MMIC digital attenuator in a lead-free 4 mm 24 lead PQFN surface mount plastic package. This device is ideally suited for use where high accuracy, very low power consumption and low intermodulation products are required. Typical applications include Cellular Basestation RX/TX Line-up, Femtocells, and other gain / level control circuits. 3. Blocking capacitors are required on all RF ports. 4. For optimum RF performance all N/C’s should be terminated to GND. Pin Configuration Pin No. Function Pin No. Function 1 P/S 13 RF_OUT 2 CLK 14 No Connection 3 Serial IN 15 Serial OUT 4 LE 16 PUP2 5 Ground 17 PUP1 6 RF_IN 18 VDD 7 No Connection 19 VC16 8 No Connection 20 VC8 9 No Connection 21 VC4 10 No Connection 22 VC2 11 No Connection 23 VC1 12 No Connection 24 VC0.5 This attenuator is controlled with either a SPI compatible serial interface or a 6 bit parallel word. Ordering Information 1 Part Number Package MAAD-000523-TR1000 1000 piece reel MAAD-000523-TR3000 3000 piece reel MAAD-000523-001SMB Sample Board 1. Reference Application Note M513 for reel size information. 2. All sample boards include 5 loose parts. * Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 1 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MAAD-000523 Digital Attenuator, 6-Bit, Serial / Parallel Control 31.5 dB, 0.7 - 6.0 GHz Rev. V2 Electrical Specifications 5: TA = 25°C, Z0 = 50 Ω, VDD = 5 V, VC = 0/+5 V6 Parameter Test Conditions Units Min. Typ. Max. Reference Insertion Loss 0.7 GHz 2.1 GHz 4.0 GHz 6.0 GHz dB — — — — 1.3 1.6 2.0 2.5 — 2.3 — — Attenuation Accuracy 0.7 - 6.0 GHz ± (0.4 + 4% of attenuation setting) dB typ. VSWR 0.7 - 6.0 GHz Ratio — 1.2:1 — Trise, Tfall 10% to 90% RF, 90% to 10% RF ns — 70 — Ton, Toff 50% Control to 90% RF, 50% Control to 10% RF ns — 100 — Settling Time Loss Delta (Gate Lag) RF Loss Difference within 30 µs to 500 µs @ 2 GHz and 500 µs Pulse dB — 0.2 — Transients In Band mV — 50 — Input P1dB 2.0 GHz dBm — 25 — IP2 2-Tone, +10 dBm/tone, 1 MHz Spacing 2.0 - 6.0 GHz dBm — 75 — IP3 2-Tone, +10 dBm/tone, 1 MHz Spacing 2.0 - 6.0 GHz dBm — 50 — IDD VDD = 5V µA 0 — 600 5. External DC blocking capacitors are required on all RF ports. Loss varies at 0.003 dB/°C. Truth Table 6 Absolute Maximum Ratings 7,8 VC16 VC8 VC4 VC2 VC1 VC0.5 Attenuation (dB) Parameter Absolute Maximum Input Power 700 - 6000 MHz +27 dBm 1 1 1 1 1 1 Reference IL 1 1 1 1 1 0 0.5 1 1 1 1 0 1 1 Operating Voltage 6V 1 1 1 0 1 1 2 Control Voltage -0.5 V < VC < 5.5 V 1 1 0 1 1 1 4 Operating Temperature -40°C to +85°C 1 0 1 1 1 1 8 Junction Temperature +150°C 0 1 1 1 1 1 16 Storage Temperature -65°C to +150°C 0 0 0 0 0 0 31.5 6. 0 = 0 to 0.8V, 1 = 2 to 5V. 7. Exceeding any one or combination of these limits may cause permanent damage to this device. 8. M/A-COM Technology Solutions does not recommend sustained operation near these survivability limits. 2 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MAAD-000523 Digital Attenuator, 6-Bit, Serial / Parallel Control 31.5 dB, 0.7 - 6.0 GHz Rev. V2 Typical Performance Curves Insertion Loss Relative Attenuation across all major states 0 0 -5 -1 -10 -2 -15 -20 -3 -5 -25 +25°C -40°C +85°C -4 0 1 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB -30 2 3 4 5 6 7 -35 8 0 1 2 Frequency (GHz) Input Return Loss, across all attenuation states 4 5 6 7 8 Output Return Loss, across all attenuation states 0 0 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB -5 -10 -10 -15 -20 -20 -25 -25 -30 -30 0 1 2 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB -5 -15 -35 3 Frequency (GHz) 3 4 5 6 7 -35 8 0 1 2 Frequency (GHz) 3 4 5 6 7 8 6 7 8 Frequency (GHz) Step Error vs. State over Frequency IP3 80 2.5 0.7 GHz 1 GHz 2 GHz 3 GHz 4 GHz 5 GHz 6 GHz 2.0 1.5 1.0 70 60 0.5 0.0 -0.5 50 -1.0 -1.5 40 - - - - +/- (0.3 + 3%ATT) dB - - - - +/- (0.3 + 4%ATT) dB -2.0 -2.5 0 4 8 12 16 State (dB) 20 24 28 32 30 0 1 2 3 4 5 Frequency (GHz) 3 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MAAD-000523 Digital Attenuator, 6-Bit, Serial / Parallel Control 31.5 dB, 0.7 - 6.0 GHz Rev. V2 Typical Performance Curve: Relative Phase Variation vs. Frequency and all states 40 30 Handling Procedures 20 Please observe the following precautions to avoid damage: 10 0 Static Sensitivity -10 Gallium Arsenide Integrated Circuits are sensitive to electrostatic discharge (ESD) and can be damaged by static electricity. Proper ESD control techniques should be used when handling these devices. -20 -30 -40 -50 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Frequency (GHz) Lead Free 4 mm 24-Lead PQFN† † Reference Application Note S2083 for lead-free solder reflow recommendations. Meets JEDEC moisture sensitivity level 1 requirements. Plating is 100% matte tin over copper. 4 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MAAD-000523 Digital Attenuator, 6-Bit, Serial / Parallel Control 31.5 dB, 0.7 - 6.0 GHz Rev. V2 Functionality Modes of Operation: Serial, Direct Parallel, and Latched Parallel Mode Truth Table P/S LE Mode 1 X Serial 0 Constant High Direct Parallel 0 Pulsed Latched Parallel Serial Mode The serial control interface (SERIN, CLK, LE, SEROUT) is compatible with the SPI protocol. SPI mode is activated when P/S is kept high. The 6-bit serial word must be loaded with the MSB first. After shifting in the 6 bit word, bringing LE high will set the attenuator to the desired state. While LE is high the CLK is masked to protect the data while implementing the change. SEROUT is the SERIN delayed by 6 clock cycles. When P/S is low, the serial control interface is disabled and the serial input register is loaded asynchronously with parallel digital inputs. For all modes of operations, the outputs will stay constant while LE is kept low. Direct Parallel Mode The parallel mode is enabled when P/S is set to low. In the direct parallel mode, the attenuator is controlled by the parallel control inputs directly. The LE must be at logic high to control the attenuator in this mode. Latched Parallel Mode In the latched parallel mode, the parallel control inputs will be buffered by registers, and loaded to the outputs when LE is high. The outputs shall not change states when LE is low. Power-up States The power-up (PUP) states will work in both serial and parallel modes, and initiate the attenuator according to the PUP truth table. During power up, the digital inputs shall be held constant for at least 1 μs after VCC reaches 90% of final value. For serial mode, the PUP states will only work when LE is held low. The PUP state shall be locked out after the first LE pulse. 5 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MAAD-000523 Digital Attenuator, 6-Bit, Serial / Parallel Control 31.5 dB, 0.7 - 6.0 GHz Rev. V2 Functionality Modes of Operation: Serial, Direct Parallel, and Latched Parallel PUP Truth Table Inputs PS LE PUP2 PUP1 Gain Relative to Max. Gain 0 0 0 0 -31.5 dB 0 0 0 1 -24 dB 0 0 1 0 -16 dB 0 0 1 1 Insertion Loss 0 1 X X 0 to –31.5 dB (Set VC0.5 - VC16) 1 0 X X 0 to –31.5 dB (Set VC0.5 - VC16) 1 1 X X No Definition Notes Parallel Mode Serial Mode Serial Interface Timing Characteristics Symbol Parameter tSCK Typical Performance Units -40°C 25°C +85°C Min. Serial Clock Period 100 100 100 ns tCS Min. Control Set-up Time 20 20 20 ns tCH Min. Control Hold Time 20 20 20 ns tLS Min. LE Set-up Time 10 10 10 ns tLEW Min. LE Pulse Width 10 10 10 ns tLH Min. Serial Clock Hold Time from LE 10 10 10 ns tLES Min. LE Pulse Spacing 630 630 630 ns 6 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MAAD-000523 Digital Attenuator, 6-Bit, Serial / Parallel Control 31.5 dB, 0.7 - 6.0 GHz Rev. V2 Functionality Modes of Operation: Serial, Direct Parallel, and Latched Parallel Serial Input Interface Timing Diagram Parallel Control Word tLEW LE tLS tLH 30ns Minimum 7 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice.