HMC542ALP4 HITTITE | Alldatasheet
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Technical content
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com AttenuAtors - DIGItAL - sMt 8 - 1 HMC542ALP4 / 542ALP4E 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR, DC - 4 GHz v05.0311 Functional Diagram Electrical Specifications, TA = +25° C, with Vcc = +5V the HMC542ALP4(e) is ideal for:
- Cellular/PCs/3G Infrastructure
- IsM, MMDs, WLAn, WiMAX, & WiBro
- Microwave radio & VsAt
- test equipment and sensors 0.5 dB LsB steps to 31.5 dB ttL/CMos Compatible serial Data Interface sPI Compatible serial output ± 0.25 dB typical step error single +5V supply
24 Lead 4x4mm QFn Package: 16mm²
the HMC542ALP4( e) is a broadband 6-bit GaAs IC digital attenuator with a CM os compatible serial to parallel driver in low cost leadless surface mount package. this serial control digital attenuator incorp rates off chip AC ground capacitors for near DC opera- tion, making it suitable for a wide variety of rF and IF applications. Covering DC to 4 GHz, the inser - tion loss is 1.5 dB and the attenuator bit values are 0.5 (L sB), 1, 2, 4, 8, and 16 dB for a total attenua - tion of 31.5 dB. Attenuation accuracy is excellent at ±0.25 dB typical step error with an IIP3 of +45 dBm. six bit serial control words are used to select each attenuation state. A single Vdd bias of +5V is required. Parameter Frequency (GHz) Min. typ. Max. units Insertion Loss DC - 1.5 GHz 1.5 - 3.0 GHz 3.0 - 4.0 GHz 1.2 1.5 1.8 1.5 1.8 2.3 dB dB dB Attenuation r ange DC - 4.0 GHz 31.5 dB return Loss (rF1 & rF2, All Atten. s tates) DC - 4.0 GHz 17 dB Attenuation Accuracy: ( referenced to Insertion Loss) All Attenuation s tates 0.5 - 3.5 dB states 4.0 - 31.5 dB states All Attenuation s tates 0.5 - 3.5 dB states 4.0 - 31.5 dB states DC - 1.0 GHz 1.0 - 2.2 GHz 1.0 - 2.2 GHz 2.2 - 3.0 GHz 3.0 - 4.0 GHz 3.0 - 4.0 GHz ± (0.20 + 3% of Atten. s etting) Max. ± (0.25 + 3% of Atten. s etting) Max. ± (0.15 + 4% of Atten. setting) Max. ± (0.30 + 3% of Atten. s etting) Max ± (0.15 + 5% of Atten. setting) Max ± (0.50 + 5% of Atten. setting) Max. dB dB dB dB dB Input Power for 0.1 dB Compression 0.1 - 4.0 GHz 20 dBm Input third order Intercept Point (two-tone Input Power= 0 dBm e ach tone) 0.1 - 1.5 GHz 1.5 - 4.0 GHz dBm dBm switching Characteristics trIse, tFALL (10/90% rF) ton, toFF (50% CtL to 10/90% rF) DC - 4.0 GHz 800 900 ns ns Typical Applications Features General Description
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com AttenuAtors - DIGItAL - sMt 8 - 2 Return Loss RF1, RF2 (Only Major States are Shown)Insertion Loss Normalized Attenuation (Only Major States are Shown) Bit Error vs. Frequency (Only Major States are Shown) Relative Phase vs. Frequency (Only Major States are Shown) Bit Error vs. Attenuation State -2.5 -1.5 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 +25 C +85 C -40 C INSERTION LOSS (dB) FREQUENCY (GHz) -35 -30 -25 -20 -15 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 NORMALIZED ATTENUATION (dB) FREQUENCY (GHz) -40 -20 0 0.5 1 1.5 2 2.5 3 3.5 4 RELATIVE PHASE (deg) FREQUENCY (GHz) 8 dB 16 dB 31.5 dB 0.5-4 dB -1.5 -0.5 0.5 1.5 0 0.5 1 1.5 2 2.5 3 3.5 4 BIT ERROR (dB) FREQUENCY (GHz) 16 dB 0.5-8B 31.5 dB -40 -35 -30 -25 -20 -15 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 RETURN LOSS (dB) FREQUENCY (GHz) 0.5-16 dB 31.5 dB -0.8 -0.6 -0.4 -0.2 0.2 0.4 0.6 0.8 1.2 0 4 8 12 16 20 24 28 32 BIT ERROR (dB) ATTENUATION STATE (dB)
3 GHz
2 GHz
1 GHz
500 MHz40 MHz
100 MHz
3.6 GHz
v05.0311 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR, DC - 4 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com AttenuAtors - DIGItAL - sMt 8 - 3 Worst Case Step Error Between Successive Attenuation States -0.8 -0.6 -0.4 -0.2 0.2 0.4 0.6 0.8 0 0.5 1 1.5 2 2.5 3 3.5 4 STEP ERROR (dB) FREQUENCY (GHz) Timing Diagram Truth Table Control Voltage Input Attenuation state rF1 - rF2C16 C8 C4 C2 C1 C0.5 High High High High High High reference I.L. High High High High High Low 0.5 dB High High High High Low High 1 dB High High High Low High High 2 dB High High Low High High High 4 dB High Low High High High High 8 dB Low High High High High High 16 dB Low Low Low Low Low Low 31.5 dB Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. Digital Control Voltages state Vcc = +5V Low 0 to 1.3V High 3 to 5V Parameter symbol Vcc = +5V units Min. Max. serial Input s etup time ts 20 - ns Hold time from s erial Input to shift Clock th 0 - ns setup time from s hift Clock to Latch e nable tlsup 40 - ns Latch enable Window, Latch enable to C0.5 through C8 tpd - 30 ns setup time from r eset to shift Clock - 20 - ns Clock Frequency (1/tclk) fclk - 30 MHz Timing Serial Input Truth Table Latch enable shift Clock reset Function X X L shift register cleared X á H shift register clocked á X H Contents of shift register transferred to Digital Attenuator HMC542ALP4 / 542ALP4E v05.0311 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR, DC - 4 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com AttenuAtors - DIGItAL - sMt 8 - 4 Logic / Functional Diagram Programming Example to Select 16 dB Attenuation State HMC542ALP4 / 542ALP4E v05.0311 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR, DC - 4 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com AttenuAtors - DIGItAL - sMt 8 - 5 Pin number Function Description Interface s chematic 1, 3, 5, 14, 16-18, 23 n/C these pins are not connected internally. However, all data shown herein was measured with these pins connected to rF/DC Ground. 2 Vcc supply Voltage. 4, 15 rF1, rF2 this pin is DC coupled and matched to 50 o hms Blocking capacitors are required. s elect value based on lowest frequency of operation. 6 - 11, 13 ACG1 - ACG7 external capacitor to ground is required. s elect value for lowest frequency of operation. Place capacitor as close to pins as possible. 12 n/C this pin is not connected internally and any connection made to it externally will have no effect on product performance. 19 serial output serial data output. s erial input data delayed by 8 clock cycles 20 reset see truth table, control voltage table and timing diagram. 21 shift Clock
22 Latch enable
GnD Package bottom has an exposed metal paddle that must be connected to r F/DC Ground. Pin Descriptions HMC542ALP4 / 542ALP4E v05.0311 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR, DC - 4 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com AttenuAtors - DIGItAL - sMt 8 - 6 Application Circuit HMC542ALP4 / 542ALP4E v05.0311 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR, DC - 4 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com AttenuAtors - DIGItAL - sMt 8 - 7 Absolute Maximum Ratings Outline Drawing rF Input Power (DC - 4.0 GHz) +27 dBm (t = +85 °C) Digital Inputs ( reset, shift Clock, Latch enable & serial Input) -0.5 to (Vcc +0.5) V Bias Voltage (Vcc) +5.6 V Channel temperature 150 °C Continuous Pdiss ( t = 85 °C) (derate 7.7 mW/°C above 85 °C) 0.5 W thermal resistance 130 °C/W storage temperature -65 to +150 °C operating temperature -40 to +85 °C notes: 1. LeADFrAMe MAterIAL: CoPPer ALLoY 2. DIMensIons Are In InCHes [MILLIMeters] 3. LeAD sPACInG toLerAnCe Is non-CuMuLAtIVe. 4. PAD Burr LenGtH sHALL Be 0.15mm MAXIMuM. PAD Burr HeIGHt sHALL Be 0.05mm MAXIM uM. 5. PACKAGe WArP sHALL not eXCeeD 0.05mm. 6. ALL GrounD LeADs AnD GrounD PADDLe Must Be soLDereD to PCB rF GrounD. 7. reFer to HIttIte APPLICAtIon note For suGGesteD LAnD PAttern. eLeCtrostAtIC sensItIVe DeVICe oBserVe HAnDLInG PreCAutIons
Package Information
Vcc (V) Idd (typ.) (mA) +4.5 4.7 +5.0 5.0 +5.5 5.3 HMC542ALP4 / 542ALP4E v05.0311 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR, DC - 4 GHz Part number Package Body Material Lead Finish MsL rating Package Marking [3] HMC542ALP4 Low stress Injection Molded Plastic sn/Pb solder MsL1 [1] H542A XXXX HMC542ALP4e roHs-compliant Low s tress Injection Molded Plastic 100% matte sn MsL1 [2] H542A XXXX [1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C [3] 4-Digit lot number XXXX
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com AttenuAtors - DIGItAL - sMt 8 - 8 Evaluation PCB the circuit board used in the application should use rF circuit design techniques. signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. the evaluation circuit board shown is available from Hittite upon request. List of Materials for Evaluation PCB 114399 [1] Item Description J1 - J2 PCB Mount sMA Connector J3 18 Pin DC Connector J4, J5 DC Pin C1 1000 pF Capacitor, 0603 Pkg. C2, C3 1000 pF Capacitor, 0402 Pkg. C4 - C7 330 pF Capacitor, 0402 Pkg. u1 HMC542ALP4(e) Digital Attenuator PCB [2] 114398 evaluation PCB [1] reference this number when ordering complete evaluation PCB [2] Circuit Board Material: r ogers 4350 or Arlon 25F r HMC542ALP4 / 542ALP4E v05.0311 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR, DC - 4 GHz