LC79DAEK - LC79D GNSS Evaluation Board Kit | Quectel
料号： LC79DAEK ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $145 | $145.00 |
| 5 | $138 | $690.00 |
| 10 | $130 | $1,300.00 |
| 25 | $122 | $3,050.00 |
| 50 | $115 | $5,750.00 |
LC79DAEK 概述
A GNSS (Global Navigation Satellite System) module is a radio receiver that simultaneously tracks signals from multiple satellite constellations (GPS, GLONASS, Galileo, BeiDou, QZSS, NAVS) to compute position, velocity and time (PVT). GNSS modules belong to the broader RF receiver category and sit in the hierarchy: GNSS module -> satellite navigation receiver -> RF receiver -> wireless transceiver -> semiconductor. They typically integrate an RF front-end, baseband processor, and a positioning engine that outputs NMEA-0183 or proprietary binary protocols over UART/USB.
Key features of the LC79DAEK include support for GPS L1+L5, GLONASS L1, Galileo E1+E5a, BeiDou B1I+B1C+B2a, QZSS L1+L5 and SBAS, achieving centimeter-level convergence with RTK corrections. The EVB integrates a high-gain LNA, SAW filter for out-of-band rejection, active antenna power supply, and an on-board USB-to-UART bridge for direct PC connection. Operating voltage spans 3.0 V to 5.5 V, and the board exposes standard 2.54 mm headers for all I/O.
Typical applications include autonomous-robot localization, asset-tracking telematics, precision-agriculture GNSS receivers, surveying and mapping devices, and unmanned-aerial-vehicle (UAV) navigation. The dual-band L1+L5 architecture delivers robust multipath rejection in urban canyon environments, which is essential for ADAS and lane-level mapping. Compared to single-band L1-only GNSS modules, the LC79D's L5 reception improves position accuracy from ~2.5 m to ~0.5 m in open-sky conditions.
When designing with the LC79DAEK, ensure the active antenna bias-tee supplies 3.0 V to 5.5 V at the LNA feed, and that the USB-to-UART bridge is configured for 115200 bps 8N1 by default. Place the EVB away from switching power converters and large digital buses to minimize GNSS in-band interference.
直接替换替代料： LC79DAEK ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
LC79DAEK
✅ 直接替换✓ 有现货
$115 / 个
查看数据手册 →LC76EAEKK1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LC86EAEKK1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LC79DAEK 规格参数（制造商发布）
| Product Type | GNSS Evaluation Board Kit (EVB) |
| Target Module | Quectel LC79D |
| GNSS Constellations | GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS |
| GNSS Bands | L1 + L5 dual-band |
| GPS Channels | L1 C/A, L5 |
| Galileo Channels | E1, E5a |
| BeiDou Channels | B1I, B1C, B2a |
| 电源电压 | 3.0 V to 5.5 V |
| 接口 | USB, UART |
| Active Antenna Support | Yes (integrated LNA + SAW filter + bias-tee) |
| Default UART Baud | 115200 bps (8N1) |
| 安装类型 | Surface Mount / Through-Hole Headers |
| 工作温度 | -40 C to +85 C |
| RoHS | Compliant |
| Antenna Connector | RF coaxial (active antenna compatible) |
LC79DAEK 引脚配置
| 引脚 J1 | USB — USB 2.0 Type-B micro-B connector for power and UART bridge |
| 引脚 J2 | UART_HEADER — 2.54 mm header for direct UART access to LC79D module (TX/RX/RTS/CTS) |
| 引脚 J3 | DC_JACK — Barrel jack for external 5 V DC supply |
| 引脚 J4 | ANT — SMA coaxial connector for active or passive GNSS antenna |
| 引脚 SW1 | BOOT — Boot/reset pushbutton for firmware recovery |
| 引脚 LED1 | PWR — Power-on indicator LED |
| 引脚 LED2 | GNSS_1PPS — 1PPS time-pulse indicator LED |
功率与热特性
| 功率输入 | 3.0 V to 5.5 V |
| 工作温度 | -40 C to +85 C |
LC79DAEK 的功率输入和热参数（由制造商发布）。
典型应用
LC79DAEK 适用于 7 应用s: Autonomous Robot and AGV Localization, Precision Agriculture GNSS Receivers, Asset Tracking and Fleet Telematics, Surveying and Mapping Devices, UAV and Drone Navigation, ADAS and Lane-Level Mapping Prototyping, Wearable and Outdoor Recreation Devices.
Autonomous Robot and AGV Localization
The LC79DAEK evaluation kit hosts the LC79D module whose L1+L5 dual-band reception is critical for indoor-outdoor autonomous mobile robots and AGVs. Sub-meter position accuracy in real time enables waypoint navigation and fleet coordination without RTK base-station infrastructure in open-sky warehouses. The kit's integrated LNA and SAW filter provide 30 dB of out-of-band rejection, suppressing Wi-Fi and Bluetooth interference from onboard radios. USB/UART interfaces allow direct connection to an NVIDIA Jetson or Raspberry Pi compute platform running ROS2 nav stacks, while the active-antenna bias-tee supports an external high-gain patch for indoor ceiling mount placement.
推荐
Precision Agriculture GNSS Receivers
Dual-frequency L1+L5 reception on the LC79DAEK makes it suitable for tractor auto-steer and GNSS-guided spraying systems where centimeter-level row alignment is required. The LC79D module achieves <1 m autonomous accuracy and <2 cm with RTK corrections, satisfying most open-field agriculture guidance workflows. The on-board LNA+SAW chain tolerates EMI from tractor alternators and VFD drives, while the -40 C to +85 C operating range covers summer-cab and winter-outdoor deployments. Power input from a 12 V tractor bus (after 5 V regulation) is compatible with the kit's 3.0 V to 5.5 V supply window.
推荐
Asset Tracking and Fleet Telematics
Fleet operators can prototype multi-constellation asset trackers with the LC79DAEK to evaluate coverage in dense urban and rural environments. The LC79D's concurrent L1+L5 reception improves fix availability inside truck trailers and under heavy tree canopy where L1-only modules lose lock. The on-board USB bridge allows laptop-based firmware evaluation without soldering, accelerating time-to-prototype for OBD-II or hardwired telematic units. The Quectel LC79D supports Geofence, odometer and trajectory-logging features that are typically enabled via AT commands over UART.
推荐
Surveying and Mapping Devices
The LC79DAEK supports RTK and PPP-RTK correction streams, achieving centimeter-level convergence in surveying workflows. The L5 signal provides ionospheric-delay correction that single-band L1 receivers cannot match, which is critical for cadastral and topographic mapping. The kit's UART interface streams NMEA-0183 and RTCM3.3 correction data simultaneously, allowing direct integration with field data collectors running Carlson SurvCE or Trimble Access workflows. Engineers can validate multipath performance in canopy and urban-canyon test scenarios before committing to a custom PCB layout.
推荐
UAV and Drone Navigation
Drone flight controllers can prototype dual-band GNSS receivers with the LC79DAEK before miniaturization. The LC79D module's low power consumption (~250 mW in continuous-tracking mode) preserves drone flight time, while L5 reception improves yaw accuracy under the wing where multipath dominates. The kit's USB-C port enables in-field firmware updates via laptop, and the bias-tee supports an active GNSS antenna on the drone's GPS mast. Multi-constellation tracking ensures reliable lock in equatorial regions where BeiDou and QZSS coverage are dense.
推荐
ADAS and Lane-Level Mapping Prototyping
Tier-1 automotive suppliers can prototype lane-level mapping receivers using the LC79DAEK's dual-band output. Sub-meter autonomous and lane-level (0.2 m) accurate positioning is essential for ADAS L2+ functions including highway autopilot and predictive cruise control. The kit's USB/UART bridges interface with automotive development platforms such as NXP S32K3 and TI TDA4VM SoCs for sensor-fusion bring-up. L5 reception under tree canopy and in tunnels is significantly more robust than L1-only modules, satisfying Euro NCAP AEB test scenarios.
推荐
Wearable and Outdoor Recreation Devices
Outdoor recreation and fitness wearables can prototype dual-band GNSS with the LC79DAEK for hiking, trail-run and mountain-bike categories. The L5 signal cuts multipath errors in deep canyons and dense forest understory, producing cleaner tracklogs than L1-only modules. The integrated LNA maintains sensitivity with small ceramic patch antennas typically used in wearable form factors. USB power input supports direct bench testing, while UART output feeds BLE-enabled MCU hosts like Nordic nRF52840 for production wearable designs.
推荐
推荐产品汇总
工程参考数据： LC79DAEK ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | LC76EAEKK1 | LC86EAEKK1 |
|---|---|---|---|
| Package | EVB Kit (PCB) | EVB Kit (PCB) - same family | EVB Kit (PCB) - same family |
| Brand | Quectel | Quectel (same brand) | Quectel (same brand) |
| GNSS Bands | L1 + L5 dual-band | L1 only (single-band) | L1 only (single-band) |
| Supported Constellations | GPS+GLONASS+Galileo+BeiDou+QZSS+SBAS | GPS+BeiDou+GLONASS+Galileo+QZSS (subset) | GPS+BeiDou+GLONASS+Galileo+QZSS |
| RTK Support | Yes (L1+L5 RTK) | No (single-band) | No (single-band) |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V (same) | 3.0 V to 5.5 V (same) |
| Integrated LNA + SAW | Yes | Yes (same) | Yes (same) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C (same) | -40 C to +85 C (same) |
| Unit Price (qty 1) | ~145 USD | ~80 USD (lower) | ~95 USD |
关键差异点
- Dual-band L1+L5 GNSS reception on a ready-to-use EVB （对比 LC76EAEKK1 (single-band L1))
- Multi-constellation support across six GNSS systems （对比 LC86EAEKK1 (L1 single-band))
- Integrated LNA + SAW + active-antenna bias-tee on-board （对比 Bare LC79D module without EVB)
设计说明
Place the EVB GNSS antenna connector as far from switching DC-DC converters, USB data lines, and high-speed digital buses (PCIe, DDR, MIPI) as practical. Recommended keep-out of at least 20 mm around the SMA connector preserves antenna pattern and minimizes in-band interference. Use a grounded copper pour around the antenna feed to suppress common-mode currents.
Power the LC79DAEK from a clean linear regulator if possible; ripple from switching pre-regulators couples into the LNA input and degrades CN0. A ferrite bead + 10 uF ceramic on the 5 V input reduces conducted noise. According to the Quectel LC79D specification, total supply ripple must be held below 50 mVpp to preserve full sensitivity.
For active GNSS antennas, ensure the bias-tee supplies 3.0 V to 5.5 V at the antenna feed with at least 50 mA capacity. DC-block the RF path with an inline capacitor (typically 1 nF to 10 nF) if the antenna has its own bias supply. Mismatched bias voltage may damage the antenna LNA or the EVB's on-board SAW filter input stage.
Do not connect USB and external DC jack simultaneously; the on-board power mux will source current from one or the other but dual-power can cause latch-up. When flashing new firmware, hold the BOOT button during USB enumeration to enter DFU mode; otherwise the host may fail to detect the LC79D bootloader.
合规信息
RoHS and REACH compliant per Quectel product page. EVB is not AEC-Q100 qualified; the LC79D module alone is the production part for automotive designs. Halogen-free and conflict-mineral status not explicitly listed in distributor data - set to 'unknown' until Quectel ships a PCN update.
