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Analog Devices Inc. 103706-HMC253QS24
- Part No.:
- 103706-HMC253QS24
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
103706-HMC253QS24.pdf
- Description:
- BOARD EVAL SWITCH SP8T HMC253
- Quantity:
- Payment:
- Shipping:
Inventory:4,463
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Product details
Overview
HMC253QS24 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC SP8T non-reflective RF switch operating from DC to 2.5 GHz, featuring 1.3 dB typical insertion loss at 2 GHz, 26 dB isolation at 2 GHz, and integrated 3:8 TTL decoder requiring only three control lines. It is used in CATV/DBS signal routing, CDMA front-end switching, and cellular/PCS transceiver path selection.
For engineers reviewing the HMC253QS24 datasheet, HMC253QS24 pinout, HMC253QS24 application, or HMC253QS24 equivalent, key selection criteria include its non-reflective architecture, +5 V single-supply operation, 24-lead QSOP package, TTL/CMOS-compatible control interface, and DC–2.5 GHz bandwidth with verified RF performance across temperature.
Technical Context
The HMC253QS24 implements a monolithic GaAs MMIC architecture with on-die passive matching and integrated 3:8 decoder logic, enabling direct TTL/CMOS control without external decoding circuitry. Its non-reflective design maintains 50 Ω impedance in all off-state ports, minimizing system-level VSWR degradation during switching.
It operates over –40 °C to +85 °C with +5.0 V ±10% bias supply, drawing 6 mA typical and 9 mA maximum quiescent current. Switching speed is characterized by 30 ns rise/fall time and 100 ns turn-on/turn-off delay, supporting fast TDD and burst-mode RF applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | DC to 2.5 GHz - supports broadband RF routing from baseband through PCS band without re-tuning. |
| Insertion Loss (2 GHz) | 1.3 dB typical - ensures minimal signal attenuation in active path, preserving receiver sensitivity and transmit EVM. |
| Isolation (2 GHz) | 26 dB minimum - prevents crosstalk between selected and unselected RF paths in multi-band systems. |
| Input IP3 | 40 dBm typical - enables linear operation with two-tone +7 dBm inputs, critical for multi-carrier CDMA/WCDMA. |
| P1dB | 20 dBm minimum - supports +20 dBm CW input without compression, suitable for high-power front-end switching. |
| Control Interface | TTL/CMOS-compatible 3-bit logic (A/B/C) - eliminates level-shifting circuitry and simplifies FPGA/microcontroller interfacing. |
| Supply Voltage | +5.0 V ±10% - compatible with standard digital supply rails; no auxiliary bias required. |
Pinout & Package
The HMC253QS24 is housed in a 24-lead QSOP (Quarter-Size Outline Package) with exposed thermal pad, low-stress molded plastic body, Sn/Pb lead finish, and MSL1 rating. All ground leads must be soldered directly to PCB RF ground per layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Vdd | Bias supply input | +5 V DC power for internal GaAs FETs and decoder logic; requires local 0.01 µF bypass. |
| A, B, C | Digital control inputs | 3-bit TTL/CMOS address lines selecting one of eight RF paths; low-current (≤70 µA) inputs. |
| RFCOM | Common RF port | Single-pole input/output node; DC-blocked via external capacitor per datasheet note. |
| RF1–RF8 | Switched RF outputs | Eight independent RF paths; all off-state ports are non-reflective (50 Ω terminated internally). |
| GND (Leads 1, 2, 3, 4, 5, 6, 19, 20, 21, 22, 23, 24) | RF and digital ground | 12 dedicated ground pins - must be soldered to solid RF ground plane with multiple vias for return path integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Non-reflective SP8T architecture | Internal 50 Ω termination on all off-state RF ports eliminates need for external dummy loads and reduces board space. |
| Integrated 3:8 TTL decoder | Reduces control line count from 8 to 3, simplifying host interface and lowering FPGA I/O resource usage. |
| DC–2.5 GHz bandwidth | Covers AM/FM broadcast, GSM, DCS, PCS, UMTS, and 2.4 GHz ISM bands in a single device. |
| +5 V single-supply operation | Eliminates negative or dual supplies, reducing power management complexity and BOM cost. |
| 24-lead QSOP package | Standard surface-mount footprint with thermal pad; compatible with automated assembly and reflow profiles (peak 235 °C). |
Applications
| CATV/DBS Signal Routing | CDMA Base Station Front-End |
|---|---|
Use Scenario: Selecting between multiple satellite LNB outputs or cable signal sources in multiswitch distribution systems. IC Role / Device Role / Timing Role: SP8T RF switch routing broadband IF signals (950–2150 MHz) with minimal group delay variation. Use Value: 1.8 dB max insertion loss at 2.5 GHz preserves CNR margin; non-reflective design avoids standing waves in daisy-chained splitters. | Use Scenario: Antenna diversity switching and TRX path selection in CDMA macrocell BTS transceivers. IC Role / Device Role / Timing Role: High-isolation RF path selector enabling simultaneous RX monitoring and TX transmission. Use Value: 26 dB min isolation at 2 GHz suppresses TX leakage into RX chain; 100 ns switching supports fast TDD guard intervals. |
| Cellular/PCS Handset Front-End | Multi-Band SDR Transceiver |
Use Scenario: Dynamic antenna tuning and band switching in LTE/5G smartphones supporting Bands 2, 4, 5, 13, and 25. IC Role / Device Role / Timing Role: Low-loss SP8T switch enabling shared antenna architecture across frequency-division duplex bands. Use Value: 1.3 dB typ insertion loss at 2 GHz maximizes PA efficiency and extends battery life; +20 dBm P1dB handles peak LTE UL power. | Use Scenario: Reconfigurable RF front-end in software-defined radios covering 100 MHz–2.5 GHz for defense and test equipment. IC Role / Device Role / Timing Role: Wideband signal path selector controlled via FPGA GPIO, supporting rapid frequency hopping. Use Value: DC-coupled operation allows baseband injection; 40 dBm IP3 ensures clean multi-tone reception without intermodulation distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SP8T RF switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Qorvo QM11036 | Si-based SP8T, 0.1–3.8 GHz, 1.6 dB IL @ 2.5 GHz, requires dual supply (+5 V/+3.3 V), no integrated decoder. | Higher integration not needed; preferred where discrete logic control is already present and wider bandwidth is required. | Choose QM11036 when >3.0 GHz coverage is essential and board space permits external decoder logic. |
| Skyworks SKY13418-485LF | SP8T GaAs pHEMT, 0.01–3.0 GHz, 1.4 dB IL @ 2.5 GHz, +3.3 V supply, no integrated decoder, smaller 20-pin QFN. | Lower supply voltage and smaller footprint; lacks non-reflective architecture and TTL compatibility. | Choose SKY13418-485LF when +3.3 V bias is mandated and off-state reflection can be managed externally. |
Compared with QM11036 and SKY13418-485LF, the HMC253QS24 uniquely combines integrated 3:8 TTL decoding, non-reflective off-state termination, and +5 V single-supply operation in a proven 24-lead QSOP package-making it optimal for legacy and cost-sensitive broadband RF routing where control simplicity and impedance stability are critical.
Availability
HMC253QS24 is available at Aetrix Electronics and suitable for CATV/DBS signal distribution, CDMA base station front-ends, and cellular/PCS handset RF front-ends requiring stable component supply and long-term lifecycle support.
Supply support for HMC253QS24 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 is a global semiconductor leader specializing in high-performance analog, mixed-signal, and RF technologies, with deep expertise in microwave and millimeter-wave ICs.
The HMC253QS24 belongs to Analog Devices' legacy Hittite Microwave RF switch product line, engineered for broadband wireless infrastructure, test instrumentation, and satellite communications where wideband, low-loss, and non-reflective switching are essential.
FAQ
What is the operating temperature range for the HMC253QS24?
The HMC253QS24 is specified to operate from –40 °C to +85 °C. This range is validated across all key RF parameters including insertion loss, isolation, and return loss. The device's GaAs MMIC process and QSOP packaging ensure stable performance under industrial and outdoor environmental conditions. Thermal derating is not required within this span, and the HMC253QS24 maintains full specification compliance at both extremes.
Does the HMC253QS24 require external DC blocking capacitors?
Yes, the HMC253QS24 requires external DC blocking capacitors at RFCOM and all RF1–RF8 ports, as explicitly stated in the datasheet notes. These capacitors prevent DC bias from propagating into connected components and maintain proper RF port impedance. Typical values are 100 pF in 0402 package, placed as close as possible to the device pins. Failure to include them may cause unexpected bias shifts or damage to downstream components.
What is the absolute maximum input power rating for the HMC253QS24?
The HMC253QS24 has an absolute maximum input power rating of +20 dBm from 0.05–0.5 GHz and +24 dBm from 0.5–2.5 GHz, measured at the RFCOM port with Vdd = +5 V. Exceeding these levels risks permanent GaAs FET degradation. For continuous operation, the datasheet specifies +20 dBm P1dB as the recommended maximum CW input to avoid compression and distortion in the HMC253QS24.
Is the HMC253QS24 pin-compatible with the HMC253QS24E variant?
Yes, the HMC253QS24 and HMC253QS24E share identical pinout, electrical specifications, and mechanical outline. The only differences are RoHS compliance (100% matte tin plating vs. Sn/Pb), MSL1 reflow profile (260 °C peak vs. 235 °C), and marking format. Both variants mount identically on PCBs and function interchangeably in designs where lead-free assembly is required or permitted.
How does the integrated 3:8 decoder simplify system design with the HMC253QS24?
The integrated 3:8 decoder in the HMC253QS24 reduces required control lines from eight individual enable signals to just three TTL/CMOS-compatible address lines (A, B, C). This eliminates external logic gates or FPGA resources dedicated to decoding, lowers PCB trace count, and removes timing skew concerns between parallel control paths. The decoder directly drives internal GaAs FET switches, ensuring synchronized path selection without added latency in the HMC253QS24.
103706-HMC253QS24 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Bag
- Product Status:
- Obsolete
- Type:
- Switch, SP8T
- Frequency:
- 0Hz ~ 2.5GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC253QS24
103706-HMC253QS24 FAQ
1.How can I place an order for 103706-HMC253QS24 through Aetrix?
Please submit a Request for Quotation (RFQ) for 103706-HMC253QS24 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 103706-HMC253QS24 reliable?
The price and inventory of 103706-HMC253QS24 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 103706-HMC253QS24 is usually 5 days.
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Once your 103706-HMC253QS24 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 103706-HMC253QS24?
For technical support, including 103706-HMC253QS24 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 103706-HMC253QS24 requirements.
6.How does Aetrix verify that 103706-HMC253QS24 is sourced from the original manufacturer or authorized distributors?
All 103706-HMC253QS24 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 103706-HMC253QS24 meets industry standards.
7.What is the process for return or replacement of 103706-HMC253QS24?
All 103706-HMC253QS24 units undergo pre-shipment inspection (PSI). If there is an issue with 103706-HMC253QS24, 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 103706-HMC253QS24 part is unused and in its original packaging.
Return procedure for 103706-HMC253QS24:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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