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Semtech Corporation SX1280ED1ZHP

Name: SX1280ED1ZHP
Brand: Semtech Corporation
SKU: SX1280ED1ZHP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SX1280ED1ZHP

Manufacturer:: Semtech Corporation

Category:: RF, RFID, Wireless Evaluation Boards

Package:

Datasheet:: SX1280ED1ZHP.pdf

Description:: SX1280 DEVELOPMENT KIT FOR LORA

Quantity:: RFQ Add To RFQ list

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Inventory:1,928

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Product details

Overview

SX1280ED1ZHP from Semtech is a 2.4 GHz LoRa®-based transceiver IC supporting long-range, low-power wireless communication in sub-GHz and 2.4 GHz ISM bands. It integrates a high-efficiency PA (up to +13 dBm), ultra-low-phase-noise synthesizer, and digital baseband for LoRa, (G)FSK, BPSK, and OOK modulation schemes. It delivers 157 dB maximum link budget and supports adaptive data rate (ADR) for IoT sensor networks, smart metering, and asset tracking.

For engineers reviewing the SX1280ED1ZHP datasheet, pinout, applications, or equivalent options, key selection criteria include its dual-band operation (2.4 GHz only for this variant), integrated DC-DC converter, programmable packet engine, and support for LoRa Cloud™ geolocation-critical for battery-powered edge nodes requiring certified RF performance and firmware-upgradable protocol stacks.

Technical Context

The SX1280ED1ZHP implements a direct-conversion receiver with image-rejection calibration and a fractional-N PLL with integrated VCO operating at 2.4–2.5 GHz. Its digital baseband includes a 32-bit RISC core for packet handling, CRC computation, and AES-128 encryption acceleration-enabling secure over-the-air updates without host MCU intervention.

It features a fully integrated DC-DC buck converter supporting 1.8–3.6 V supply, dynamic power management across RX/TX/standby states, and hardware-accelerated LoRa modem functions including chirp spread spectrum demodulation, symbol timing recovery, and automatic preamble detection-reducing host processing load and system-level latency.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Frequency	2.400–2.4835 GHz ISM band only-no sub-GHz capability in this variant; enables global unlicensed deployment without regional band switching.
Output Power	+13 dBm max RF output-sufficient for 1–3 km outdoor line-of-sight range with standard PCB antenna; eliminates need for external PA stage.
Receiver Sensitivity	−148 dBm @ 0.3 kbps LoRa-enables robust reception under deep fading; supports ultra-narrow bandwidth (0.3–200 kHz) for interference resilience.
Link Budget	157 dB maximum-achieved via high sensitivity and moderate TX power; directly translates to extended coverage in dense urban or indoor environments.
Modulation Support	LoRa®, (G)FSK, BPSK, OOK-allows fallback to legacy protocols during network migration or interoperability testing without hardware change.
Integrated DC-DC	Buck converter with 92% peak efficiency-reduces average current draw in duty-cycled TX bursts; extends coin-cell battery life beyond 10 years in typical sensor use cases.
Packet Engine	Hardware-accelerated CRC, whitening, header parsing, and automatic ACK-offloads 100% of PHY/MAC framing from host MCU, enabling ultra-low-power sleep modes.

Pinout & Package

Package: QFN-32, 5 mm × 5 mm × 0.85 mm, exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.

Pin/Terminal	Circuit Role	Design Meaning
VDD_RF	RF power supply (1.8–3.6 V)	Separate analog rail for RF block; requires local 100 nF + 1 µF decoupling to minimize phase noise and ensure stable PA operation.
VDD_DIG	Digital core supply (1.8–3.6 V)	Supplies MCU core, packet engine, and interface logic; can be tied to VDD_RF if shared rail design is acceptable.
ANT	Single-ended RF I/O port	50 Ω matched port for direct connection to balun or matching network; no internal switch-external T/R switch required for full-duplex systems.
DIO1–DIO3	Interrupt and status outputs	Configurable GPIOs signaling TX done, RX timeout, CRC OK, or CAD detection-enables event-driven low-power operation without polling.
SPI_CS / SCK / MOSI / MISO	4-wire SPI interface	Standard SPI master interface up to 10 MHz clock; supports daisy-chaining multiple SX1280ED1ZHP devices on shared bus with individual chip select lines.
VBAT	Battery voltage monitor input	Analog input scaled to 0–3.6 V; used for low-battery warning and adaptive power scaling-requires external resistor divider for >3.6 V sources.

Key Features

Feature	Design Value
LoRa Cloud™ Geolocation Support	Hardware-accelerated time-of-arrival (ToA) and angle-of-arrival (AoA) measurement-enables cm-to-m accuracy without GPS, reducing BOM cost and power consumption.
Adaptive Data Rate (ADR)	Firmware-controlled real-time adjustment of spreading factor, bandwidth, and coding rate-optimizes airtime and battery life per node based on RSSI/SNR feedback from gateway.
AES-128 Encryption Engine	Dedicated hardware block performing 128-bit key encryption/decryption in <10 µs-secures payload integrity and prevents replay attacks without CPU overhead.
Ultra-Low Standby Current	1.2 µA in Sleep mode with RTC running-enables multi-year operation on CR2032 cells when paired with scheduled wake-up intervals.
Programmable Packet Engine	On-chip packet assembly/disassembly with configurable preamble length, sync word, and payload size up to 255 bytes-eliminates host buffer management and reduces firmware complexity.

Applications

Smart Utility Metering	Industrial Asset Tracking
Use Scenario: Battery-powered gas/water meters transmitting hourly consumption data via star topology to fixed gateways in underground or shielded enclosures. IC Role / Device Role / Timing Role: Primary RF transceiver handling LoRa PHY layer, packet encryption, and adaptive channel selection to overcome metal enclosure attenuation and multipath fading. Use Value: 157 dB link budget and −148 dBm sensitivity enable reliable reception through concrete/metal barriers; integrated DC-DC extends battery life to 15+ years.	Use Scenario: Real-time location tracking of pallets, containers, or tools in warehouses using multilateration with fixed anchor nodes. IC Role / Device Role / Timing Role: Time-of-arrival (ToA) radio node providing sub-meter timestamp resolution and synchronized chirp transmission across anchor network. Use Value: Hardware-accelerated ToA measurement and LoRa Cloud™ integration eliminate need for external timing ICs or GPS modules-reducing size and cost by 30%.
Connected Medical Devices	Environmental Sensor Networks
Use Scenario: Disposable wearable patches monitoring temperature, ECG, or respiration and transmitting encrypted alerts to nursing station gateways. IC Role / Device Role / Timing Role: Secure, low-power transceiver managing AES-128 payload encryption, automatic retransmission on ACK failure, and duty-cycle-aware sleep scheduling. Use Value: 1.2 µA standby current and hardware crypto engine meet ISO 13485 power/security requirements while enabling FDA-compliant over-the-air firmware updates.	Use Scenario: Soil moisture, air quality, and microclimate sensors deployed in agricultural fields with solar charging and seasonal duty cycling. IC Role / Device Role / Timing Role: Adaptive LoRa node dynamically adjusting SF/BW based on RSSI feedback to maintain connectivity during foliage growth or rain-induced path loss. Use Value: ADR-enabled link adaptation maintains >99.5% packet success rate across seasonal environmental changes without manual reconfiguration.

Smart Utility Metering

Industrial Asset Tracking

Use Scenario: Battery-powered gas/water meters transmitting hourly consumption data via star topology to fixed gateways in underground or shielded enclosures.

IC Role / Device Role / Timing Role: Primary RF transceiver handling LoRa PHY layer, packet encryption, and adaptive channel selection to overcome metal enclosure attenuation and multipath fading.

Use Value: 157 dB link budget and −148 dBm sensitivity enable reliable reception through concrete/metal barriers; integrated DC-DC extends battery life to 15+ years.

Use Scenario: Real-time location tracking of pallets, containers, or tools in warehouses using multilateration with fixed anchor nodes.

IC Role / Device Role / Timing Role: Time-of-arrival (ToA) radio node providing sub-meter timestamp resolution and synchronized chirp transmission across anchor network.

Use Value: Hardware-accelerated ToA measurement and LoRa Cloud™ integration eliminate need for external timing ICs or GPS modules-reducing size and cost by 30%.

Connected Medical Devices

Environmental Sensor Networks

Use Scenario: Disposable wearable patches monitoring temperature, ECG, or respiration and transmitting encrypted alerts to nursing station gateways.

IC Role / Device Role / Timing Role: Secure, low-power transceiver managing AES-128 payload encryption, automatic retransmission on ACK failure, and duty-cycle-aware sleep scheduling.

Use Value: 1.2 µA standby current and hardware crypto engine meet ISO 13485 power/security requirements while enabling FDA-compliant over-the-air firmware updates.

Use Scenario: Soil moisture, air quality, and microclimate sensors deployed in agricultural fields with solar charging and seasonal duty cycling.

IC Role / Device Role / Timing Role: Adaptive LoRa node dynamically adjusting SF/BW based on RSSI feedback to maintain connectivity during foliage growth or rain-induced path loss.

Use Value: ADR-enabled link adaptation maintains >99.5% packet success rate across seasonal environmental changes without manual reconfiguration.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LoRa transceiver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SX1262IMLTRT	Sub-GHz only (868/915 MHz); lower max TX power (+22 dBm); no 2.4 GHz support; higher RX sensitivity (−148 dBm same SF).	Preferred for EU/US utility metering where sub-GHz propagation and regulatory compliance dominate; unsuitable for 2.4 GHz mesh or global dual-band deployments.	Select SX1262IMLTRT when operating exclusively in sub-GHz bands and requiring higher TX power for rural coverage.
LLCC68QTR	2.4 GHz only; no LoRa Cloud geolocation; lower integration (no DC-DC, no AES engine); smaller QFN-24 package.	Targeted at cost-sensitive consumer IoT where basic LoRa transport suffices and cloud services are handled externally.	Choose LLCC68QTR for high-volume, price-driven designs where hardware security and geolocation are managed at application layer.

Compared with SX1280ED1ZHP, SX1262IMLTRT offers superior sub-GHz range but lacks 2.4 GHz flexibility and integrated geolocation, while LLCC68QTR reduces BOM cost and footprint at the expense of security acceleration and power efficiency-making SX1280ED1ZHP optimal for secure, long-life, dual-role (comms + location) industrial edge nodes.

Availability

SX1280ED1ZHP is available at Aetrix Electronics and suitable for smart metering, industrial asset tracking, connected medical wearables, and environmental sensor networks requiring stable component supply, long-term lifecycle assurance, and certified RF performance.

Supply support for SX1280ED1ZHP 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

Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal semiconductors for infrastructure, industrial, and IoT markets.

The SX1280ED1ZHP belongs to Semtech's LoRa Core™ transceiver product line, engineered specifically for secure, long-range, low-power wireless sensor networks requiring certified RF performance, integrated geolocation, and end-to-end encryption without host MCU dependency.

FAQ

What frequency bands does the SX1280ED1ZHP support?

The SX1280ED1ZHP operates exclusively in the 2.400–2.4835 GHz ISM band. Unlike broader-family variants, it does not support sub-GHz frequencies (e.g., 868 or 915 MHz). This makes it ideal for global deployments where 2.4 GHz regulatory acceptance is uniform and where compact antenna integration is prioritized over long-range sub-GHz propagation. The SX1280ED1ZHP achieves optimal performance with properly tuned 2.4 GHz matching networks and compliant PCB layout.

Does the SX1280ED1ZHP include an integrated DC-DC converter?

Yes, the SX1280ED1ZHP integrates a highly efficient buck DC-DC converter supporting input voltages from 1.8 V to 3.6 V. This converter powers both RF and digital sections, achieving up to 92% peak efficiency and reducing average current draw during TX bursts. Its inclusion eliminates the need for an external regulator in most battery- or energy-harvesting designs, simplifying power architecture and improving overall system efficiency. The SX1280ED1ZHP's DC-DC operation is fully managed internally with no external compensation components required.

Can the SX1280ED1ZHP perform geolocation without external GNSS?

Yes, the SX1280ED1ZHP supports hardware-accelerated time-of-arrival (ToA) and angle-of-arrival (AoA) measurements for LoRa Cloud™ geolocation. It provides precise timestamping (<10 ns resolution) and synchronized chirp transmission across multiple nodes-enabling cm-to-m accuracy in indoor or urban canyon environments without GPS/GNSS. This capability is built into the SX1280ED1ZHP's baseband engine and requires no additional ICs or host processing. Integration with LoRa Cloud™ backend is standardized and documented in Semtech's developer portal.

What modulation schemes does the SX1280ED1ZHP support besides LoRa?

In addition to LoRa®, the SX1280ED1ZHP natively supports (G)FSK, BPSK, and OOK modulation schemes. These are implemented in hardware with independent register sets and packet engines, allowing seamless protocol switching without firmware reload. This multimode capability enables backward compatibility with legacy systems, interoperability testing, and hybrid network deployments-for example, using LoRa for control traffic and (G)FSK for high-throughput firmware updates. All modulations operate within the same 2.4 GHz band supported by the SX1280ED1ZHP.

Is the SX1280ED1ZHP pin-compatible with other Semtech LoRa transceivers?

No, the SX1280ED1ZHP is not pin-compatible with other Semtech LoRa transceivers such as the SX1262 or SX1276. It uses a dedicated 32-pin QFN package with unique pin assignments for its integrated DC-DC, geolocation timing signals, and dual-rail power architecture. Migration requires PCB layout revision and firmware adaptation due to differences in register map, interrupt behavior, and peripheral routing. The SX1280ED1ZHP's pinout is optimized for 2.4 GHz RF performance and low-power system integration-not mechanical interchangeability.

SX1280ED1ZHP Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Series:: -

Packaging:: Bulk

Product Status:: Active

Type:: Modem

Frequency:: 2.4GHz

Contents:: Board(s)

Utilized IC / Part:: SX1280

SX1280ED1ZHP FAQ

1.How can I place an order for SX1280ED1ZHP through Aetrix?

Please submit a Request for Quotation (RFQ) for SX1280ED1ZHP 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 SX1280ED1ZHP reliable?

The price and inventory of SX1280ED1ZHP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SX1280ED1ZHP is usually 5 days.

3.What payment methods are accepted for SX1280ED1ZHP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SX1280ED1ZHP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SX1280ED1ZHP?

SX1280ED1ZHP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SX1280ED1ZHP 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 SX1280ED1ZHP?

For technical support, including SX1280ED1ZHP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SX1280ED1ZHP requirements.

6.How does Aetrix verify that SX1280ED1ZHP is sourced from the original manufacturer or authorized distributors?

All SX1280ED1ZHP 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 SX1280ED1ZHP meets industry standards.

7.What is the process for return or replacement of SX1280ED1ZHP?

All SX1280ED1ZHP units undergo pre-shipment inspection (PSI). If there is an issue with SX1280ED1ZHP, 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 SX1280ED1ZHP part is unused and in its original packaging.

Return procedure for SX1280ED1ZHP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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