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Analog Devices Inc. HMC306MS10ETR
- Part No.:
- HMC306MS10ETR
- Manufacturer:
- Analog Devices Inc.
- Category:
- Attenuators
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
HMC306MS10ETR.pdf
- Description:
- RF ATTENUATOR 0.5-15.5DB 10TFSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,761
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Product details
Overview
HMC306MS10ETR from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC 5-bit digital RF attenuator in MSOP-10 package, operating from 0.7 to 3.8 GHz with 0.5 dB LSB resolution, 15.5 dB max attenuation, ±0.2 dB typical bit error, and +52 dBm IIP3 at Vdd = 5 V. It serves as a precision signal-level control element in RF front-ends for wireless infrastructure.
For engineers reviewing the HMC306MS10ETR datasheet, HMC306MS10ETR pinout, HMC306MS10ETR application, or HMC306MS10ETR equivalent, this page delivers verified electrical specs, validated package mapping, confirmed control interface behavior, and real-world deployment context for UMTS/3G, WiMAX, and microwave radio systems.
Technical Context
The HMC306MS10ETR implements a broadband 5-bit switched-attenuator architecture using GaAs MMIC process, with individual positive-control voltage inputs (V1–V5) toggled between 0 V and Vdd (+3 to +5 V) to select discrete attenuation states. Each bit corresponds to 0.5, 1, 2, 4, and 8 dB steps.
It requires only a single Vdd bias supplied via an external 5 kΩ resistor (Pin 6 or Pin 10), DC-blocking capacitors on RF1 and RF2 ports, and direct grounding of all ground pins to PCB RF ground plane. Operating temperature range is −40 °C to +85 °C with MSL1 moisture sensitivity rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 0.7 – 3.8 GHz: Full 5-bit operation across cellular, ISM, WLAN, and microwave bands without re-tuning. |
| Attenuation Range & Resolution | 0.5 – 15.5 dB in 0.5 dB LSB steps: Enables fine-grained RF power leveling for closed-loop AGC and calibration routines. |
| Insertion Loss | 1.3 – 2.7 dB (freq.-dependent): Low baseline loss preserves system noise figure and gain budget in cascaded stages. |
| IIP3 | +52 dBm @ Vdd = 5 V: Supports high-linearity operation in multi-tone environments like base station transceivers. |
| Bit Accuracy | ±0.2 dB typical absolute bit error: Ensures predictable attenuation state matching across temperature and supply variation. |
| Switching Speed | tON/tOFF = 600 ns: Compatible with fast-settling digital control loops and burst-mode transmission schemes. |
| Control Interface | 5-pin positive logic (0 V / Vdd): Simplifies integration with FPGA/CPLD GPIOs or dedicated attenuator controllers without level-shifting. |
Pinout & Package
Package: RoHS-compliant MSOP-10 (3.0 × 3.0 × 0.85 mm, 15 mm² footprint), matte Sn lead finish, MSL1 rated, with all ground leads (Pins 1, 2, 3, 4, 9) requiring soldering to PCB RF ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RF1 | RF Input | Primary RF signal entry port; requires DC-blocking capacitor (100–300 pF) for AC coupling. |
| V1 | 8 dB Bit Control | Positive logic input: High = enable 8 dB attenuation contribution; low = bypass. |
| V2 | 4 dB Bit Control | Positive logic input: High = enable 4 dB attenuation contribution; low = bypass. |
| V3 | 2 dB Bit Control | Positive logic input: High = enable 2 dB attenuation contribution; low = bypass. |
| V4 | 1 dB Bit Control | Positive logic input: High = enable 1 dB attenuation contribution; low = bypass. |
| V5 | 0.5 dB Bit Control | Positive logic input: High = enable 0.5 dB attenuation contribution; low = bypass. |
| Vdd | Bias Supply Input | +3 to +5 V DC applied via external 5 kΩ resistor to Pin 6 or Pin 10; powers internal circuitry. |
| RF2 | RF Output | Attenuated RF signal output port; requires DC-blocking capacitor (100–300 pF). |
| GND (Pins 1,2,3,4,9) | RF & Digital Ground | All five ground pins must be soldered directly to low-inductance PCB ground plane for optimal RF performance. |
Key Features
| Feature | Design Value |
|---|---|
| 0.5 dB LSB resolution | Enables precise RF power adjustment down to 0.5 dB increments for factory calibration and dynamic range optimization. |
| Single-supply +3 to +5 V operation | Eliminates need for negative or dual supplies; compatible with standard logic rails and simplifies power sequencing. |
| ±0.2 dB typical bit error | Reduces calibration overhead in production test by minimizing per-unit attenuation correction tables. |
| Miniature MSOP-10 package | Supports high-density RF layout in space-constrained modules such as small-cell radios and portable test equipment. |
| High linearity (IIP3 up to +52 dBm) | Maintains signal integrity in wideband multi-carrier systems where intermodulation distortion must be minimized. |
Applications
| UMTS/3G Base Station Transceivers | WiMAX Subscriber Unit Front-Ends |
|---|---|
|
Use Scenario: Dynamic transmit power control in macrocell BTS RF chains to comply with air interface power masks and reduce adjacent-channel interference. IC Role / Device Role / Timing Role: Digitally programmable RF attenuator placed between PA driver and final stage to adjust output power in 0.5 dB steps under microcontroller or FPGA control. Use Value: Achieves <1 dB power accuracy across temperature and frequency while supporting fast AGC loop response (<1 µs settling). |
Use Scenario: Receive path gain management in outdoor WiMAX CPE units to prevent LNA saturation during variable signal strength conditions. IC Role / Device Role / Timing Role: Programmable attenuator inserted between antenna switch and LNA input to maintain constant input power level to downstream stages. Use Value: Delivers ±0.2 dB bit accuracy and 15.5 dB range to support robust RSSI-based automatic gain control over 0.7–3.8 GHz band. |
| Microwave Point-to-Point Radios | RF Production Test Equipment |
|
Use Scenario: Calibration-grade attenuation in 6–11 GHz E-band transceivers using harmonic mixing techniques that require stable, repeatable loss settings. IC Role / Device Role / Timing Role: Reference attenuator in IF or LO path for phase and amplitude trimming during factory alignment of microwave modems. Use Value: Provides traceable 0.5 dB steps and <0.3 dB total attenuation error across full temperature range (−40 to +85 °C). |
Use Scenario: Signal level conditioning in automated RF test fixtures for cellular modem validation, requiring rapid, software-controlled attenuation changes. IC Role / Device Role / Timing Role: Digitally addressed attenuator in GPIB/LAN-controlled test head, driven by Python or LabVIEW via GPIO or SPI-to-parallel interface. Use Value: 600 ns switching enables >1 kHz step-rate in production test sequences, reducing test cycle time without sacrificing repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF digital attenuator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC624LP4E | 6-bit, 0.25 dB LSB, 31.75 dB range, 0.1–4.0 GHz, higher insertion loss (2.5–3.5 dB), QFN-24 package. | Better resolution and wider range but larger footprint and lower linearity (IIP3 = +45 dBm). | Select when sub-0.5 dB resolution or >15.5 dB range is required; verify PCB layout compatibility with QFN-24. |
| ADL5240 | 6-bit, 0.5 dB LSB, 31.5 dB range, 0.1–4.0 GHz, integrated serial interface (SPI), 40-lead LFCSP, +47 dBm IIP3. | Includes SPI control and on-chip bias regulation; eliminates external resistor and simplifies digital interface. | Choose for systems needing serial configuration, reduced component count, or tighter board-level integration-accept slightly lower IIP3 than HMC306MS10ETR. |
Compared with HMC624LP4E and ADL5240, the HMC306MS10ETR offers superior linearity (+52 dBm IIP3) and minimal footprint (MSOP-10), making it optimal for high-performance, space-constrained RF designs where 15.5 dB range and 0.5 dB resolution suffice.
Availability
HMC306MS10ETR is available at Aetrix Electronics and suitable for UMTS/3G infrastructure, WiMAX CPE, and microwave radio applications requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for HMC306MS10ETR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices acquired Hittite Microwave in 2014 and maintains its high-frequency RF portfolio, including GaAs MMIC products for defense, communications, and instrumentation markets.
The HMC306MS10ETR belongs to Hittite's legacy broadband digital attenuator family, designed specifically for precision RF power control in wireless infrastructure and test equipment where low insertion loss, high linearity, and compact packaging are critical.
FAQ
What is the operating frequency range of the HMC306MS10ETR?
The HMC306MS10ETR operates from 0.7 GHz to 3.8 GHz with full 5-bit functionality across this band. Insertion loss and return loss vary within specified limits per frequency sub-band (e.g., 1.3 dB typ. at 0.7–1.4 GHz, 2.3 dB typ. at 2.7–3.8 GHz), and attenuation accuracy remains within ±0.2 dB typical across the entire range when biased at +5 V.
Does the HMC306MS10ETR require external DC-blocking capacitors?
Yes, the HMC306MS10ETR requires external DC-blocking capacitors on both RF1 and RF2 ports. The datasheet specifies 100–300 pF values selected based on the lowest operating frequency to ensure minimal insertion loss while blocking DC. These are mandatory for proper RF signal coupling and protection of internal circuitry.
What is the control voltage logic scheme used by the HMC306MS10ETR?
The HMC306MS10ETR uses positive-control TTL/CMOS-compatible logic: each of the five control inputs (V1–V5) toggles between 0 V (low, ≤0.2 V) and Vdd (high, Vdd ±0.2 V). No inversion or level-shifting is needed-direct connection to FPGA GPIOs or microcontroller outputs suffices when Vdd is +3 to +5 V.
Is the HMC306MS10ETR pin-compatible with the HMC306MS10?
Yes, the HMC306MS10ETR is pin-compatible with the non-RoHS HMC306MS10. Both share identical MSOP-10 pinout, electrical characteristics, and functional behavior. The "E" suffix denotes RoHS compliance (100% matte Sn lead finish, 260 °C peak reflow), while the base part uses Sn/Pb and has 235 °C reflow limit.
What is the maximum RF input power the HMC306MS10ETR can handle?
The HMC306MS10ETR supports +28 dBm absolute maximum RF input power across 0.7–3.8 GHz. Under normal operation at Vdd = +5 V, the input P1dB is +25 dBm; at Vdd = +3 V, it is +23 dBm. Exceeding these levels risks compression or permanent damage, especially without adequate thermal management.
How does the HMC306MS10ETR achieve its ±0.2 dB bit accuracy?
The HMC306MS10ETR achieves ±0.2 dB typical bit accuracy through monolithic GaAs MMIC design with matched FET arrays and precision on-chip resistor networks. This accuracy is measured relative to insertion loss and holds across temperature (−40 to +85 °C) and supply voltage (+3 to +5 V), enabling reliable use in uncalibrated or minimally calibrated RF systems.
HMC306MS10ETR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Attenuation Value:
- 0.5dB ~ 15.5dB
- Frequency Range:
- 700 MHz ~ 3.8 GHz
- Power (Watts):
- -
- Impedance:
- 50 Ohms
- Grade:
- -
- Qualification:
- -
HMC306MS10ETR FAQ
1.How can I place an order for HMC306MS10ETR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC306MS10ETR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HMC306MS10ETR reliable?
The price and inventory of HMC306MS10ETR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC306MS10ETR is usually 5 days.
3.What payment methods are accepted for HMC306MS10ETR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC306MS10ETR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC306MS10ETR?
HMC306MS10ETR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC306MS10ETR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HMC306MS10ETR?
For technical support, including HMC306MS10ETR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC306MS10ETR requirements.
6.How does Aetrix verify that HMC306MS10ETR is sourced from the original manufacturer or authorized distributors?
All HMC306MS10ETR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HMC306MS10ETR meets industry standards.
7.What is the process for return or replacement of HMC306MS10ETR?
All HMC306MS10ETR units undergo pre-shipment inspection (PSI). If there is an issue with HMC306MS10ETR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HMC306MS10ETR part is unused and in its original packaging.
Return procedure for HMC306MS10ETR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HMC306MS10ETR Tags
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PAT0510S-C-3DB-T10
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PAT0510S-C-10DB-T10
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PAT0510S-C-2DB-T10
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PAT1220-C-10DB-T5
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PAT1220-C-6DB-T5
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PAT1220-C-0DB-T5
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PAT1220-C-3DB-T5
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PAT1220-C-5DB-T5
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PAT1220-C-8DB-T5
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