LC29D - Dual-Band GNSS Module with RTK/DR | Quectel
N.º da peça: LC29D ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $25.2 | $252,00 |
| 100 | $21.8 | $2.180,00 |
| 500 | $19.4 | $9.700,00 |
| 1.000 | $17.1 | $17.100,00 |
LC29D Visão geral
A GNSS (Global Navigation Satellite System) module is a satellite-receiving electronic component that computes position, velocity and time (PVT) solutions by trilaterating ranging signals from multiple satellite constellations. The technology hierarchy spans: GNSS module -> satellite receiver -> positioning IC -> RF receiver -> wireless semiconductor. Modern multi-band GNSS modules like the LC29D differ from single-band L1-only receivers by simultaneously tracking the L5 band, which provides higher chipping rate, better multipath mitigation, and improved robustness against ionospheric delay, directly translating into centimeter-to-decimeter level accuracy when paired with RTK corrections.
Key features include sub-meter positioning accuracy under open sky, concurrent multi-constellation reception across six satellite systems, integrated 6-axis IMU for sensor-fusion dead-reckoning, and RTK support for centimeter-level corrections. The module supports both LCC and LGA package variants and operates over an extended industrial temperature range, making it suitable for automotive and industrial tracking.
Technically, the LC29D uses Broadcom's BCM47758 dual-band GNSS engine, which can output RTCM 3.x correction data and supports PPP (Precise Point Positioning). The integrated IMU enables dead-reckoning to maintain accurate positioning during GNSS outages in tunnels, urban canyons, and parking structures, while RTK support achieves centimeter-level accuracy when correction streams are available.
Typical applications include vehicle tracking and fleet management, shared mobility (e-scooter, e-bike, ride-share), asset tracking, precision agriculture, and ADAS platforms. The module's RTK capability makes it well-suited for drones, autonomous robotics, and surveying equipment requiring centimeter-level accuracy.
When designing with the LC29D, ensure the host processor can provide RTCM correction data over UART or IP connection for full RTK operation. Route the RF input trace with controlled impedance and place the antenna as far from noise-generating circuitry as possible to maximize CN0. Use the recommended L1+L5 stacked patch or active multi-band antenna.
This page synthesizes verified distributor pricing, parametric same-family LC29D variants, and practical RF layout design notes that go beyond the Quectel datasheet, giving engineers a single, citation-ready reference for product selection.
Alternativas drop-in para LC29D — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
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LC29D
✅ Drop-In✓ Em estoque
$17.1 / unidade
Ver ficha técnica →LC29D
✅ Drop-In✓ Em estoque
$17.1 / unidade
Ver ficha técnica →LC29D
✅ Drop-In✓ Em estoque
$17.1 / unidade
Ver ficha técnica →LC29D
✅ Drop-In✓ Em estoque
$17.1 / unidade
Ver ficha técnica →LC29D
✅ Drop-In✓ Em estoque
$17.1 / unidade
Ver ficha técnica →LC29DCEK
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
LC29D Especificações (publicadas pelo fabricante)
| Product Type | GNSS Module |
| GNSS Bands | Dual-band (L1 + L5) |
| Supported Constellations | GPS, GLONASS, IRNSS, BeiDou, Galileo, QZSS |
| Concurrent Reception | Yes (multi-constellation) |
| Positioning Accuracy | Sub-meter (open sky); centimeter-level with RTCM RTK |
| Chipset | Broadcom BCM47758 |
| Integrated Sensor | 6-axis IMU (accelerometer + gyroscope) |
| Algorithms | RTK + Dead-Reckoning (DR) sensor fusion |
| Correction Protocol | RTCM 3.x |
| Package Type | LCC surface-mount module |
| Dimensions | 12.2 mm x 16.0 mm x 2.4 mm |
| Weight | 0.9 g |
| Interface | UART, I2C (host), RF input for antenna |
Interfaces e Conectores do LC29D
Não há lista de interfaces publicada pelo fabricante disponível para LC29D. Consulte a documentação do fabricante para detalhes de conectores e headers.
Consulte a documentação do fabricante para a pinagem completa do conector de expansão e a numeração dos pinos do conector.
Aplicações típicas
LC29D é adequado para 7 aplicaçãos: Vehicle Tracking and Fleet Management, Shared Mobility (E-scooter / E-bike / Ride-share), Precision Agriculture and Autonomous Machinery, Drone and UAV Navigation, Asset Tracking and Container Logistics, ADAS and Autonomous Vehicle Prototyping, Surveying and Mapping Equipment.
Vehicle Tracking and Fleet Management
The LC29D's sub-meter standalone positioning and integrated 6-axis IMU dead-reckoning make it ideal for fleet telematics where vehicles regularly traverse tunnels, parking decks, and urban canyons that block GNSS signals. The dual-band L1+L5 reception rejects multipath from tall buildings, while RTCM 3.x RTK input over UART from a cellular modem enables centimeter-level tracking for high-value cargo. The 0.9 g LCC module drops into 12.2 mm x 16.0 mm PCB cutouts and operates from a 3.3 V host rail, allowing direct integration into OBD-II dongles and dashcam-style trackers.
Recomendado
Shared Mobility (E-scooter / E-bike / Ride-share)
The LC29D's centimeter-level RTK accuracy and IMU dead-reckoning fit micromobility use cases where precise geofencing prevents out-of-service parking and where dropouts in urban canyons would otherwise degrade fleet visibility. Sub-meter fixes reduce sidewalk riding violations, while the BCM47758 dual-band engine rejects the multipath common in dense downtown environments. The 12.2 mm x 16.0 mm form factor mounts inside e-scooter stem controllers and e-bike battery packs without displacing existing components.
Recomendado
Precision Agriculture and Autonomous Machinery
Agricultural GNSS guidance systems demand centimeter-level row-spacing accuracy and continuous positioning through crop canopies. The LC29D's dual-band L1+L5 reception minimizes ionospheric delay over long baselines, while the integrated 6-axis IMU maintains guidance accuracy when GNSS signals are temporarily blocked by foliage or tractor tilt. RTK corrections delivered via NTRIP over cellular give the LC29D the sub-inch pass-to-pass accuracy required for auto-steer tractors and precision spraying.
Recomendado
Drone and UAV Navigation
Drones performing surveying, mapping, and inspection benefit from the LC29D's centimeter-level RTK accuracy for georeferenced orthomosaics and 3D models. The 0.9 g mass and 12.2 mm x 16.0 mm footprint fit commercial multirotor payloads, while the IMU-fused dead-reckoning maintains position hold when the UAV banks sharply and momentarily loses satellite lock. Dual-band L5 reception is essential for PPK (Post-Processed Kinematic) workflows where centimeter-accurate ground control points are generated after flight.
Recomendado
Asset Tracking and Container Logistics
High-value assets, intermodal shipping containers, and construction equipment benefit from the LC29D's sub-meter positioning combined with dead-reckoning through covered yards and warehouses. Quectel's LC29D module combines with a companion LTE Cat M1 modem to report location every few minutes over cellular, and the integrated IMU detects motion events for theft alerts. The 12.2 mm x 16.0 mm LCC module fits inside IP67-rated enclosures on chassis and intermodal container corners.
Recomendado
ADAS and Autonomous Vehicle Prototyping
The LC29D's automotive-grade dead-reckoning variants (B/BA) and dual-band RTK accuracy support ADAS sensor fusion stacks where lane-level positioning is critical. The BCM47758 engine outputs PPS and can be tightly time-synchronized with cameras, radar and lidar. Automotive tier-1 suppliers use the LC29D for V2X geocasting, electronic horizon (eHorizon) ADAS maps, and self-localization of autonomous prototype vehicles.
Recomendado
Surveying and Mapping Equipment
Surveyors and GIS professionals leverage the LC29D's RTK capability to deliver centimeter-accurate points, lines, and polygons without external base stations when NTRIP corrections are available. The dual-band L1+L5 reception minimizes ionospheric errors over long observation sessions, and the integrated IMU allows tilted-pole measurements (IMU-RTK) where pole plumbing is impractical. The module fits inside handheld GNSS rovers and back-pack mapping receivers.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para LC29D — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | LC29D (A) | LC29D (C) | LC29D (B) | LC29D (BA) | LC29DCEK |
|---|---|---|---|---|---|---|
| Brand | Quectel | Quectel | Quectel | Quectel | Quectel | Quectel |
| Package | LCC 12.2x16.0x2.4 mm | LCC 12.2x16.0x2.4 mm - same | LCC 12.2x16.0x2.4 mm - same | LCC 12.2x16.0x2.4 mm - same | LCC 12.2x16.0x2.4 mm - same | Evaluation Kit (EVB) |
| Chipset | Broadcom BCM47758 | Broadcom BCM47758 | Broadcom BCM47758 | Broadcom BCM47758 | Broadcom BCM47758 | Broadcom BCM47758 (on carrier PCB) |
| GNSS Bands | Dual-band L1+L5 | Dual-band L1+L5 | Dual-band L1+L5 | Dual-band L1+L5 | Dual-band L1+L5 | Dual-band L1+L5 |
| Dead-Reckoning | 6-axis IMU + sensor fusion (DR enabled) | UDR via IMU-only (no wheel-tick) | (C) variant firmware - DR profile differs | Automotive DR with external sensor inputs | DR per (B) profile | DR per host firmware |
| RTK Support | Yes (RTCM 3.x) | Yes (RTCM 3.x) | Yes (RTCM 3.x) | Yes (RTCM 3.x) | Yes (RTCM 3.x) | Yes (RTCM 3.x) |
| Constellations | GPS, GLONASS, IRNSS, BeiDou, Galileo, QZSS | Same six constellations | Same six constellations | Same six constellations | Same six constellations | Same six constellations |
| Positioning Accuracy | Sub-meter standalone; cm-level with RTK | Sub-meter standalone; cm-level with RTK | Sub-meter standalone; cm-level with RTK | Sub-meter standalone; cm-level with RTK | Sub-meter standalone; cm-level with RTK | Sub-meter standalone; cm-level with RTK |
Principais diferenciais
- Integrated 6-axis IMU for true dead-reckoning (vs u-blox ZED-F9P)
- Six concurrent constellations on dual-band (vs Single-band GNSS modules)
- Broadcom BCM47758 engine with mature BCM47755 lineage (vs MediaTek-based LC29H)
- Compact 12.2 x 16.0 mm LCC footprint (vs Septentrio mosaic-X5)
Notas de projeto
Route the RF input trace from the LC29D's antenna connector with 50 ohm microstrip or coplanar waveguide over a continuous ground plane; maintain a clearance of at least 3 x trace width to ground and avoid routing across plane splits. The L1+L5 dual-band antenna should be placed on the corner of the host PCB with the LC29D module as close as practical - typically within 5-8 mm - to minimize trace losses that degrade CN0.
Decouple the LC29D VCC pins with a 10 uF bulk plus 100 nF X7R ceramic capacitor placed within 2 mm of the supply pin. Add a ferrite bead or LC filter between the host 3.3 V rail and the module supply to suppress switching-noise injection from companion LTE/Wi-Fi modems, which would otherwise raise the LC29D's noise floor and degrade sub-meter accuracy. Allow for 50-80 mA peak current during cold-start acquisition.
For RTCM RTK corrections, use a dedicated UART or USB channel between the host processor and the LC29D; do not share this bus with NMEA output. RTCM packets are 1 KB-2 KB and should arrive at 1 Hz; missed or late packets directly degrade the centimeter-level fix. Configure the host to flush the UART FIFO at the LC29D's expected baud rate (typically 115200 or 921600 bps).
Avoid placing the LC29D directly above or below switching DC-DC converters, display driver ICs, or high-speed digital buses - harmonics from these can couple into the antenna and GNSS front-end. If layout forces close proximity, place a shielding fence (via-stitched ground wall) around the LC29D RF section. Also ensure the L1+L5 active antenna supplies the correct bias-T voltage documented in the Quectel Hardware Design V1.0 manual.
Although the LC29D's 0.9 g LCC package has modest self-heating, an active multi-band antenna can consume 30-50 mA and warm the GNSS front-end, shifting the TCXO. Mount the antenna physically away from heat sources (battery packs, regulators) and provide copper thermal relief under the module's thermal pad - this reduces cold-start acquisition time and improves RTK fix stability across wide ambient temperature swings.
Informações de conformidade
Quectel modules are RoHS and REACH compliant per manufacturer's declaration as of 2026-10-14. The LC29D is not AEC-Q100 qualified at the module level; automotive deployments should select the (B) variant and validate the host system's compliance. Confirm the latest certificate of conformity with Quectel directly for lot-specific declarations.