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Ryan Malloy a5560470ea Initial commit: HMC472A attenuator module reference materials 
Datasheet extraction, module specs, marketing photos, and
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Format: PDF 1.4 Title: HMC472A (v02.0420) Author: Analog Devices, Inc. Subject: 0.5 dB LSB GaAs MMIC 6-Bit Digital Positive Control Attenuator, DC - 3.8 GHz Creator: Adobe InDesign 14.0 (Windows) Producer: Adobe PDF Library 15.0 Creation Date: D:20200416094000-04'00' Mod Date: D:20200416094124-04'00'

Page 1

ATTENUATORS - DIGITAL - SMT 1 HMC472ALP4 / 472ALP4E v02.0420 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 3.8 GHz For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 781-329-4700 • Order online at www.analog.com Application Support: Phone: 1-800-ANALOG-D Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Functional Diagram Electrical Specifications, TA = +25° C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted) The HMC472ALP4E is ideal for: • 3G Infrastructure & access points • Cellular/3G, LTE & UMB • WiMAX, WiBN & Fixed Wireless • Test Equipment and Sensors • GSM, WCDMA & TD-SCDMA 0.5 dB LSB Steps to 31.5 dB Single Control Line Per Bit TTL/CMOS Compatible Control ± 0.25 dB Typical Step Error Single +5V Supply 24 Lead Ceramic 4x4mm SMT Package: 16mm² The HMC472ALP4E are broadband 6-bit GaAs IC digital attenuators in low cost leadless surface mount packages. This single positive control line per bit digital attenuator incorporates off chip AC ground capacitors for near DC operation, making it suit­ able for a wide variety of RF and IF applications. Covering DC to 3.8 GHz, the insertion loss is less than 2.0 dB typical. The attenuator bit values are 0.5 (LSB), 1, 2, 4, 8, and 16 dB for a total attenuation of 31.5 dB. Attenuation accuracy is excellent at ± 0.25 dB typical step error with an IIP3 of +54 dBm. Six TTL/ CMOS control inputs are used to select each attenua­ tion state. A single Vdd bias of +5V is required.

Electrical Specifications

Parameter Frequency (GHz) Min. Typ. Max. Units
Insertion Loss DC - 1.5 GHz 1.4 1.8 dB
Insertion Loss 1.5 - 3.0 GHz 1.7 2.3 dB
Insertion Loss 3.0 - 3.8 GHz 1.9 3 dB
Attenuation Range DC - 3.8 GHz 31.5 dB
Return Loss (RF1 & RF2, All Atten. States) DC - 3.8 GHz 20 dB
Attenuation Accuracy (All States) DC - 1.0 GHz ± (0.20 + 3% of Atten. Setting) dB
Attenuation Accuracy (0.5 - 3.5 dB States) 1.0 - 2.2 GHz ± (0.25 + 3% of Atten. Setting) dB
Attenuation Accuracy (4.0 - 31.5 dB States) 1.0 - 2.2 GHz ± (0.15 + 4% of Atten. Setting) dB
Attenuation Accuracy (All States) 2.2 - 3.0 GHz ± (0.30 + 3% of Atten. Setting) dB
Attenuation Accuracy (All States) 3.0 - 3.8 GHz ± (0.35 + 5% of Atten. Setting) dB
Input Power for 0.1 dB Compression 0.1 - 3.8 GHz 30 dBm
Input Third Order Intercept Point (REF - 15.5 dB States) 0.1 - 3.8 GHz 54 dBm
Input Third Order Intercept Point (16.0 - 31.5 dB States) 0.1 - 3.8 GHz 49 dBm
Switching: tRISE, tFALL (10/90% RF) DC - 3.8 GHz 40 ns
Switching: tON, tOFF (50% CTL to 10/90% RF) DC - 3.8 GHz 60 ns

Typical Applications

  • 3G Infrastructure & access points
  • Cellular/3G, LTE & UMB
  • WiMAX, WiBN & Fixed Wireless
  • Test Equipment and Sensors
  • GSM, WCDMA & TD-SCDMA

Features

  • 0.5 dB LSB Steps to 31.5 dB
  • Single Control Line Per Bit
  • TTL/CMOS Compatible Control
  • ± 0.25 dB Typical Step Error
  • Single +5V Supply
  • 24 Lead Ceramic 4x4mm SMT Package: 16mm²

Page 2 - Performance Graphs

Insertion Loss vs Frequency

Page 2 - Performance Graphs

Temperature curves shown for:

  • +25°C
  • +85°C
  • -40°C

Normalized Attenuation vs Frequency

Shows attenuation for major states (0.5-16 dB and 31.5 dB)

Return Loss RF1, RF2 vs Frequency

Return loss performance across 0-4 GHz range

Page 3 - Bit Error Analysis

Bit Error vs. Frequency

Performance curves for different attenuation states:

  • 0.5 - 4 dB states
  • 8 - 31.5 dB states

Bit Error vs. Attenuation State

Multiple frequency measurements:

  • 50 MHz
  • 100 MHz, 300 MHz, 350 MHz
  • 200 MHz

Bit Error vs. Frequency without AC Ground Caps

Shows behavior when AC ground capacitors are omitted (for reference)

Page 4 - Control Interface

Worst Case Step Error

Between successive attenuation states across frequency range (0-4 GHz)

Relative Phase vs. Frequency

Phase shift for major attenuation states:

  • 0.5-4 dB
  • 8 dB
  • 16 dB
  • 31.5 dB

Truth Table

V1 (16 dB) V2 (8 dB) V3 (4 dB) V4 (2 dB) V5 (1 dB) V6 (0.5 dB) Attenuation State RF1 - RF2
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

Note: Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected.

Control Voltage

State Bias Condition
Low 0 to +0.8 Vdc @ -5 µA Typ.
High +2.0 to +5.0 Vdc @ 40 µA Typ.

Bias Voltage & Current (Vdd = +5V ± 10%)

Vdd (V) Idd (Typ.) (mA)
+4.5 2.4
+5.0 2.5
+5.5 2.6

Page 5 - Absolute Maximum Ratings

Parameter Value
RF Input Power (DC - 3 GHz) +28 dBm (T = +85 °C)
Control Voltage Range (V1 to V6) -1V to Vdd +1V
Bias Voltage (Vdd) +7V
Channel Temperature 150 °C
Continuous Pdiss (T = 85 °C) 0.56 W (derate 8.6 mW/°C above 85 °C)
Thermal Resistance 116 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A

⚠️ ELECTROSTATIC SENSITIVE DEVICE - OBSERVE HANDLING PRECAUTIONS

Package Information

Part Number Package Body Material Lead Finish MSL Rating Package Marking
HMC472ALP4 Low Stress Injection Molded Plastic Sn/Pb Solder MSL3 [1] H472A XXXX
HMC472ALP4TR Low Stress Injection Molded Plastic Sn/Pb Solder MSL3 [1] H472A XXXX
HMC472ALP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL3 [2] H472A XXXX
HMC472ALP4ETR RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL3 [2] H472A XXXX

[1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C [3] 4-Digit lot number XXXX

Outline Drawing

24-Lead Lead Frame Chip Scale Package [LFCSP] 4 mm × 4 mm Body and 0.85 mm Package Height (CP-24-16)

Package dimensions (mm):

  • Body: 4.00 SQ (3.90-4.10)
  • Height: 0.85 (0.80-0.90)
  • Lead pitch: 0.50 BSC
  • Exposed pad: 2.70 SQ (2.60-2.80)

Page 6 - Pin Descriptions

Pin Number Function Description
1, 3, 5, 12, 14, 16, 17, 18 N/C These pins should be connected to PCB RF ground to maximize performance.
2 Vdd Supply Voltage.
4, 15 RF1, RF2 This pin is DC coupled and matched to 50 Ohm. Blocking capacitors are required. Select value based on lowest frequency of operation.
6 - 11, 13 ACG1 - ACG7 External capacitors to ground are recommended for low and high frequency operation. Select value for lowest frequency of operation. Place capacitor as close to pins as possible. For operation from 700 to 2700 MHz, these pins may be left unconnected.
19 - 24 V1 - V6 See truth table and control voltage table.
GND Exposed Paddle Package bottom has an exposed metal paddle that must also be connected to RF/DC Ground.

Page 7 - Application Circuit

Application Circuit

Note: For operations from 700 to 2700 MHz, pins 6 through 13 may be left unconnected.

Page 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 Analog Devices, upon request.

List of Materials for Evaluation PCB 107010 - HMC472ALP4 [1]

Item Description
J1 - J2 PCB Mount SMA Connector
J3 14 Pin DC Connector
C1 1000 pF Capacitor, 0603 Pkg.
C2, C3 1000 pF Capacitor, 0402 Pkg.
C4 - C7 330 pF Capacitor, 0402 Pkg.
U1 HMC472ALP4E Digital Attenuator
PCB [2] 106977 Evaluation PCB

[1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350