TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator Applications Mobile Infrastructure LTE / WCDMA / CDMA / EDGE Test Equipment and Sensors IF and RF Applications General Purpose Wireless 24-pin 4x4mm leadless QFN package NC 19 NC NC 20 21 NC 22 NC 5 16 14 NC NC SEROUT GND RF OUT NC NC Vdd 12 13 11 6 NC General Description 23 4 7 RF IN 7-BIT 31.75 DSA 15 3 10 GND SERIAL CONTROL 17 NC LE 2 NC SERIN 18 9 CLK 1 8 NC NC 0.4 - 3.5 GHz 0.25 dB LSB Steps to 31.75 dB +55 dBm Input IP3 1.7 dB Insertion Loss @ 2.5 GHz CMOS compatible Serial Control Interface Max attenuation state at initial power up 50 Impedance +5V Supply Voltage 24 Functional Block Diagram NC Product Features Pin Configuration The TQP4M9083 is a high linearity, low insertion loss, 7-bit, 31.75 dB Digital Step Attenuator (DSA) operating over the 0.4-3.5GHz frequency range. The digital step attenuator uses a single positive 5V supply and has a serial periphery interface (SPITM) for changing attenuation states. This product maintains high attenuation accuracy over frequency and temperature. No external matching components are needed for the DSA. The TQP4M9083 is available in a standard lead-free /green/RoHS-compliant 24-pin 4x4mm QFN package. The TQP4M9071 and TQP4M9072 are also available from TriQuint as a footprint and pin compatible 6-bit, 31.5dB DSA with a parallel control interface and serial control interface respectively. Pin # Symbol 2 3 4 6 13 15 18 5, 14 Backside Paddle All other pins are N/C CLK SERIN LE RF IN RF OUT SEROUT Vdd GND Ground Ordering Information Part No. Description TQP4M9083 TQP4M9083-PCB 7-Bit, 31.75 dB DSA 0.4-3.5GHz Evaluation Board PCB includes USB control interface board, EVH. Standard T/R size = 2500 pieces on a 13" reel. Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. - 1 of 11 - Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R) TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator Specifications Absolute Maximum Ratings Parameter Rating Storage Temperature Junction Temperature RF Input Power, 50,T = 85C Vdd, Power Supply Voltage Digital Input Voltage -55 to 150 oC 150 oC +28 dBm +6.0 V Vdd + 0.5V Recommended Operating Conditions Parameter Min yp Max Units Vdd T (case) 4.75 -40 5 5.25 85 V C o Electrical specifications are measured at specified test conditions. Specifications are not guaranteed over all recommended operating conditions. Operation of this device outside the parameter ranges given above may cause permanent damage. Electrical Specifications Test conditions: 25C, Vdd = +5V, 50 system Parameter Conditions Min Operational Frequency Range Insertion Loss Return Loss Accuracy Error Input IP3 Input P0.1dB Time rise / fall Time On , Time Off Supply Voltage, Vdd Supply Current, Idd 400 1.0 GHz 2.0 GHz 2.5 GHz 3.0 GHz All States 0.4-3.5 GHz, 0.25dB State 0.4-3.0 GHz, 0.5dB - 31.75dB State 3.0-3.5 GHz, 0.5dB - 31.75dB State Input = +15dBm / tone, All States All States 10% / 90% RF 50% CTL to 10% / 90% RF Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. - 2 of 11 - Typical Max Units 3500 MHz dB dB dB dB dB dB dB dB dBm dBm ns ns V mA 1.1 1.5 1.7 2.3 2.0 17 0.25 0.15 (0.3 + 3% of Atten. Setting) Max (0.4 + 4% of Atten. Setting) Max +55 +30 90 118 +5 2.0 Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R) TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator Serial Control Interface The TQP4M9083 has a CMOS SPITM input compatible serial interface. The input is 3-wire: Clock (CLK), Latch Enable (LE) and Serial Input (SERIN). At power up, the serial control interface resets device attenuation state to 31.75dB. The 7-bit SERIN word is loaded into the register on rising edge of the CLK, MSB first. Serial Output ( SEROUT) is propagated on rising clock egde through an internal 7-bit register. MSB, the first data to be loaded on SERIN, will appear on SEROUT after the 7th rising clock edge cycle. When LE is high, CLK is internally disabled. SERIN (MSB in First 7-Bit Word) Control Logic Truth Table 7-Bit Control Word to DSA MSB D6 1 1 1 1 1 1 1 0 0 LSB D5 1 1 1 1 1 1 0 1 0 D4 1 1 1 1 1 0 1 1 0 D3 1 1 1 1 0 1 1 1 0 D2 1 1 1 0 1 1 1 1 0 D1 1 1 0 1 1 1 1 1 0 D0 1 0 1 1 1 1 1 1 0 Attenuation State Reference : IL 0.25 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.75 dB Any combination of the possible 128 states will provide an attenuation of approximately the sum of bits selected Serial Control Interface Timing Diagram CLK is disabled when LE is high Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. - 3 of 11 - Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R) TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator Serial Control Timing Characteristics Test conditions: 25C, Vdd = +5V Min Parameter Condition Clock Frequency LE Setup Time, tLESU LE Pulse Width, tLEPW SERIN set-up time, tSISU SERIN hold-time, tSIH LE Pulse Spacing tLE 50% Duty Cycle after last CLK rising edge before CLK rising edge after CLK rising edge LE to LE pulse spacing Max Units 10 MHz ns ns ns ns ns 10 30 10 10 730 Serial Control DC Logic Characteristics Test conditions: 25C, Vdd = +5V Parameter Input Low Voltage, VIL Input High Voltage, VIH Output High Voltage, VOHmin Output Low Voltage, VOLmax Input Current, IIH / IIL Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. Condition Min Max Units On SEROUT On SEROUT On SERIN, LE and CLK 0 2.3 2.0 0 -10 0.8 Vdd Vdd 0.8 +10 V V V V A - 4 of 11 - Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R) TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator Typical Performance Data Performance plots data is measured using Bias Tee on RF ports. Insertion Loss vs. Temperature 0 Attenuation vs. Frequency 0 -5 -10 S21 (dB) Insertion Loss (dB) -1 -2 - 40C +25C +85C -3 -15 -20 -25 0.25dB 0.5dB 1dB 4dB 8dB 16dB -35 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 0.4 0.8 1.2 1.6 Frequency (GHz) 0dB -5 4dB 0.5dB 8dB 1dB 16dB 2.4 2.8 3.2 3.6 Output Return Loss vs. Frequency 0 2dB -5 31.75dB 0dB 0.25dB 0.5dB 1dB 4dB 8dB 16dB 31.75dB 2dB -10 S22 (dB) -10 0.25dB 2.0 Frequency (GHz) Input Return Loss vs. Frequency 0 S11 (dB) 31.75dB Temp. = 25oC -30 -4 -15 -20 -25 -15 -20 -25 -30 -30 Temp. = 25oC Temp. = 25oC -35 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 -35 3.6 0.4 0.8 1.2 1.6 Frequency (MHz) 2.8 3.2 3.6 - 40C +25C +85C 45 Frequency = 2 GHz Power Level = 15dBm/tone 1 MHz Tone Spacing Vdd = 5 V 60 Input IP3 (dBm) 55 50 2.4 Input IP3 65 Frequency = 0.5 GHz Power Level = 15dBm/tone 1 MHz Tone Spacing Vdd = 5 V 60 2.0 Frequency (MHz) Input IP3 65 Input IP3 (dBm) 2dB 55 - 40C +25C +85C 50 45 0 5 10 15 20 25 30 0 Attenuation States Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. 5 10 15 20 25 30 Attenuation States - 5 of 11 - Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R) TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator Typical Performance Data Attenuation Error 0.5 Relative Phase vs. Frequency 60 0dB 1dB 8dB Temp. = 25oC Relative Phase ( Degree) 50 Attenuation Error 0.3 0.1 -0.1 -0.3 0.9 GHz 1.8 GHz 2.2 GHz 2.7 GHz 0.25dB 2dB 16dB 0.5dB 4dB 31.75dB 40 30 20 10 0 -10 Temp. = 25oC -0.5 -20 0 5 10 15 20 25 30 0.4 Attenuation States 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 Frequency (GHz) Detailed Device Description The TQP4M9083 is a high linearity, low insertion loss, wideband, 7-bit, 31.75 dB digital step attenuator. The digital step attenuator uses a single 5V supply and has a CMOS SPITM controller. This product maintains high attenuation accuracy over frequency and temperature. Further assistance may be requested from TriQuint Applications Engineering, sjcapplications.engineering@tqs.com. Functional Schematic Diagram Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. - 6 of 11 - Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R) TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator NC 19 NC 20 NC 21 NC 22 NC 4 16 15 7-BIT 31.75 DSA 5 14 Vdd NC NC SEROUT GND 12 RF OUT NC NC NC 11 13 10 6 7 RF IN 3 NC GND 17 SERIAL CONTROL 9 LE 2 NC SERIN 18 NC CLK 1 8 NC 23 24 NC Pin Description Pin Symbol 2 CLK 3 SERIN 4 LE 6 13 15 RF IN RF OUT SEROUT 18 Vdd 5, 14 1, 7, 8, 9, 10, 11,12, 16, 17, 19, 20, 21, 22, 23, 24 Backside Paddle GND Clock. This serial clock is used to clock in the serial data to the registers. The data is latched on the CLK rising edge. This input is a high impedance CMOS input. Serial Input Data. The 7-bit serial data is loaded MSB first. This input is a high impedance CMOS input. Latch Enable, When LE goes high, 7-bit data in the serial input register is transferred to the attenuator. When LE is high, CLK is disabled RF Input, DC voltage present, blocking capacitor required. Can be used for Input or Output. RF Output, DC voltage present, blocking capacitor required. Can be used for Input or Output. Serial Output Data Supply Voltage. Bypass capacitor required close to the pin. Dropping resistor highly recommended ensuring compatibility with different power supplies. These pins must be connected to RF/DC ground N/C These pins are not connected internally but can be grounded on the PCB GND Multiple vias should be employed for proper performance; see page 10 for suggested footprint Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. Description - 7 of 11 - Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R) TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator Applications Information PC Board Layout Top RF layer is .020" Rogers-4003, r = 3.45, 4 total layers (0.062" thick) for mechanical rigidity. Metal layers are 1-oz copper. Microstrip line details: width = .040", spacing = .020". J5 J4 C4 U1 C3 C8 C9 C15 The PC board is designed to test using USB control interface board, Evaluation Board Host (EVH). Each TQP4M9083 evaluation board is supplied with the EVH board, USB cable and EVH graphical user interface (EVH GUI) to change attenuation states. Manual for using EVH and Application note describing the EVH are also available. Refer to TriQuint's website for more information C7 C5 C1 C14 RF layout is critical for getting the best performance. RF trace impedance needs to be 50 ohm. For measuring the actual device performance on connectorized PC board, input losses due to RF traces need to be subtracted from the data measured through SMA connectors. The calibration microstrip line J6-J7 estimates the PCB insertion loss for removal from the evaluation board measured data. All data shown on the datasheet are deembedded up to the device input/output pins. R1 External DC blocking capacitors ( C1 and C3) are required on RFin and RFout pins of the device. The supply voltage for the DSA is supplied externally through pin Vdd. Frequency bypassing for this pin is supplied by surface mount capacitor 0.1 uF (C4). This capacitor is placed close to the device pin in the board layout. To ensure application circuit is compatible with different standard power supplies, 15 (R4) dropping resistor is highly recommended on Vdd supply line. The pad pattern shown has been developed and tested for optimized assembly at TriQuint Semiconductor. The PCB land pattern has been developed to accommodate lead and package tolerances. Since surface mount processes vary from company to company, careful process development is recommended. Bill of Material: TQP4M9083-PCB Reference Desg. U1 C1,C3,C8, C9 C4 R1 C10, C11, C12, C13 Value Description Manufacturer Part Number TriQuint various various various various TQP4M9083 1000 pF 0.1 uF 15 DNP High Linearity 7-Bit, 31.5dB, DSA Cap, Chip, 0402, 50V, X7R, 10% Cap, Chip, 0402, 50V, X7R, 10% Res, Chip, 0402, 1/16W, 5% Do Not Place Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. - 8 of 11 - Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R) TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator Applications Information J5-20 GND J5-19 J5-18 J5-17 J5-16 J5-15 J5-14 J5-13 LE J5-12 CLK J5-11 SERIN J5-10 J5-9 J5-8 J5-7 J5-6 J5-5 J5-4 J5-3 J5-2 GND J5-1 Vdd PC Board Schematic Vdd 19 NC 20 NC 21 NC 22 NC 23 NC NC 24 Vdd R4 15 C4 GND GND 0.1uF 17 16 15 14 J2 50 Ohms 13 RF C7 Output C3 1000pF 0.2pF C7 not required for final application circuit. Used on PCB to resonate out the RF connector parasitics. 12 C5 not required for final application circuit. Used on PCB to resonate out the RF connector parasitics. 18 NC RF OUT NC RF IN NC 0.2pF SEROUT 11 C1 1000pF C5 6 U1 LE 7 RF Input NC 10 50 Ohms SERIN NC 5 J1 NC NC 4 CLK 9 3 Vdd 8 2 NC NC 1 Thru Calibration Line J6 RF Input 50 Ohms C14 0.2pF 50 Ohms C8 1000pF Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. C9 1000pF - 9 of 11 - J7 50 Ohms C15 0.2pF RF Output Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R) TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator Mechanical Information Package Information and Dimensions This package is lead-free, RoHS-compliant, and green. The plating material on the pins is annealed matte tin over copper. It is compatible with both lead-free (maximum 260 C reflow temperature) and leaded (maximum 245 C reflow temperature) soldering processes. The component will be laser marked with "4M9083" product label with an alphanumeric lot code on the top surface of the package. C A 4.000 0.203 Ref. 2.7000.050 Exp.DAP PIN #1 IDENTIFICATION CHAMFER 0.300 X 45 .4000.050 B 4.000 .500 Bsc 4M9083 2.7000.050 Exp.DAP R.075 .250.050 .85.05 2.500 Ref. 0.000-.050 f .10 C d .08 C Mounting Configuration All dimensions are in millimeters (inches). Angles are in degrees. 16X .38 .64 TYP All dimensions are in millimeters (inches). Angles are in degrees. .50 PITCH, TYP 24X .70 FULL R.19 .64 TYP 2.70 2.70 COMPONENT SIDE Notes: 1. Ground vias are critical for the proper RF performance of this device. Vias should use a .35mm (#80 / .0135") diameter drill and have a final plated thru diameter of .25 mm (.010"). 2. Add as much copper as possible to inner and outer layers near the part to ensure optimal thermal performance. 2.70 2.70 BACK SIDE Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. - 10 of 11 - Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R) TQP4M9083 High Linearity 7-Bit, 31.75dB Digital Step Attenuator Product Compliance Information ESD Information ESD Rating: Value: Test: Standard: Class 1C Passes 1000 V to < 2000 V Human Body Model (HBM) JEDEC Standard JESD22-A114 ESD Rating: Value: Test: Standard: Class IV Passes 1000 V Charged Device Model (CDM) JEDEC Standard JESD22-C101 Solderability The plating material on the pins is annealed matte tin over copper. It is compatible with both lead-free (maximum 260 C reflow temperature) and leaded (maximum 245 C reflow temperature) soldering processes. This part is compliant with EU 2002/95/EC RoHS directive (Restrictions on the Use of Certain Hazardous Substances in Electrical and Electronic Equipment). MSL Rating MSL 1 at +260 C convection reflow The part is rated Moisture Sensitivity Level 1 at 260C per JEDEC standard IPC/JEDEC J-STD-020. This product also has the following attributes: Lead Free Halogen Free (Chlorine, Bromine) Antimony Free TBBP-A (C15H12Br402) Free PFOS Free SVHC Free Contact Information For the latest specifications, additional product information, worldwide sales and distribution locations, and information about TriQuint: Web: www.triquint.com Email: info-sales@tqs.com Tel: Fax: +1.503.615.9000 +1.503.615.8902 For technical questions and application information: Email: sjcapplications.engineering@tqs.com Important Notice The information contained herein is believed to be reliable. TriQuint makes no warranties regarding the information contained herein. TriQuint assumes no responsibility or liability whatsoever for any of the information contained herein. TriQuint assumes no responsibility or liability whatsoever for the use of the information contained herein. The information contained herein is provided "AS IS, WHERE IS" and with all faults, and the entire risk associated with such information is entirely with the user. All information contained herein is subject to change without notice. Customers should obtain and verify the latest relevant information before placing orders for TriQuint products. The information contained herein or any use of such information does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other intellectual property rights, whether with regard to such information itself or anything described by such information. TriQuint products are not warranted or authorized for use as critical components in medical, life-saving, or life-sustaining applications, or other applications where a failure would reasonably be expected to cause severe personal injury or death. Data Sheet: Rev D 05-11-12 (c) 2012 TriQuint Semiconductor, Inc. - 11 of 11 - Disclaimer: Subject to change without notice Connecting the Digital World to the Global Network (R)