LM813 - WiFi 802.11ac + BT 4.2 Combi Module | LM Technologies
Артикул: LM813 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.4 | $164,00 |
| 100 | $14.2 | $1.420,00 |
| 500 | $12.1 | $6.050,00 |
| 1.000 | $10.85 | $10.850,00 |
LM813 Обзор
A WiFi + Bluetooth combo module is a System-in-Package (SiP) or module-level integration of two radio subsystems (WiFi IEEE 802.11 family and Bluetooth) on a shared PCB, allowing a host processor to add wireless connectivity without designing RF matching networks or managing complex coexistence arbitration in firmware. Combo modules fall within the broader category of RF modules > wireless modules in the connectivity hierarchy. They are commonly deployed when BOM simplification, certified radio performance, and reduced time-to-market outweigh the need for lowest unit cost at scale.
Key features of the LM813 include dual-band 2.4 GHz and 5 GHz WiFi operation under the IEEE 802.11ac/a/b/g/n standard family, dual-mode Bluetooth (Classic BR/EDR plus Bluetooth 4.2 LE) for backwards compatibility with legacy audio and data accessories, and an integrated coexistence interface exposed through GPIO pins for arbitration with co-located radios. The module carries an external IPEX/MHF antenna receptacle, allowing antenna selection to be tuned for the end application.
The LM813 is built around a combination chipset that implements the 802.11ac MAC/PHY and Bluetooth baseband on a single die. WiFi throughput of 433 Mbps is delivered over a single spatial stream (1x1 SISO) using 802.11ac's mandatory MCS9 modulation, while Bluetooth uses an EDR-capable radio supporting 2 Mbps (HS mode 3 Mbps). The architecture offloads coexistence, channel access, and link-layer management from the host, leaving the host application processor responsible for higher-level networking (TCP/IP, BLE GATT services).
Typical applications for the LM813 include industrial IoT edge gateways that need both WiFi infrastructure connectivity and Bluetooth for local provisioning or sensor beacons, point-of-sale (POS) terminals that accept Bluetooth card readers or barcode scanners while joining the store WiFi, and embedded HMI panels requiring over-the-air firmware updates. The dual-band capability also suits consumer audio docks that stream WiFi while maintaining a Bluetooth fallback path.
When designing with the LM813, engineers should review the host interface (USB) pin mapping and supply the module from a clean 3.3 V rail with adequate decoupling. Antenna placement and ground keep-out around the IPEX feed line directly affect radiated performance and regulatory compliance.
This page synthesizes distributor references, host-interface guidance, and verified parametric data not consolidated in the LM Technologies datasheet.
Аналоги без доработки для LM813 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
LM813-0814
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
LM813-0813
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
LM813 Характеристики (опубликованы производителем)
| Product Type | WiFi + Bluetooth Combo RF Module |
| WiFi Standards | IEEE 802.11ac/a/b/g/n |
| Bluetooth Standards | Bluetooth v2.1, v3.0, v4.2 (BR/EDR/HS) |
| WiFi Frequency Bands | 2.4 GHz and 5 GHz |
| Maximum WiFi Data Rate | 433 Mbps (802.11ac, 1x1 SISO) |
| Bluetooth EDR Data Rate | 2 Mbps (HS mode 3 Mbps) |
| Antenna Connector | IPEX (MHF) external antenna receptacle |
| Host Interface | USB with GPIO terminals for Bluetooth/Coex |
| Spatial Streams | 1x1 SISO |
| Bluetooth Modes | Dual-mode (Classic BR/EDR + BLE 4.2) |
| Coexistence Interface | GPIO (per datasheet) |
| Тип монтажа | Surface Mount (module) |
| Compliance | IEEE 802.11ac/a/b/g/n, Bluetooth SIG qualified |
| Статус RoHS | Compliant (per manufacturer product page) |
| Datasheet Pages | 13 |
Интерфейсы и разъемы LM813
LM813 имеет следующие интерфейсы и разъемы, опубликованные производителем: Беспроводная связь, Bluetooth. Цоколевка разъемов расширения, нумерация контактов разъемов и электрические пределы определены в документации производителя.
| Беспроводная связь | IEEE 802.11ac/a/b/g/n |
| Bluetooth | Bluetooth v2.1, v3.0, v4.2 (BR/EDR/HS) |
Обратитесь к документации производителя для полной распиновки разъёма расширения и нумерации контактов соединителя.
Типичное применение
LM813 подходит для 7 применениеs: Industrial IoT Edge Gateways, Point-of-Sale (POS) Terminals, Smart Audio Docks and Streaming Adapters, Wireless HMI Panels and Touchscreen Controllers, Connected Medical Devices, Smart Home Gateways and Hubs, Automotive Infotainment Accessories.
Industrial IoT Edge Gateways
The LM813 fits industrial IoT edge gateways that need both WiFi infrastructure connectivity for backhaul and BLE for local sensor provisioning or beaconing. The 802.11ac radio delivers 433 Mbps which is more than adequate for telemetry aggregation over WiFi, while Bluetooth 4.2 dual-mode allows technicians to provision the device with a phone without opening the enclosure. The USB host interface simplifies integration with Linux gateway SoCs that have native USB host stacks. Antenna placement at the enclosure edge and a 3V3 rail with adequate decoupling maximize radiated performance.
Рекомендуется
Point-of-Sale (POS) Terminals
The LM813 suits retail POS terminals that accept Bluetooth card readers or barcode scanners while simultaneously joining the store WiFi for transaction upload. The 5 GHz WiFi band avoids congested 2.4 GHz channels common in retail RF environments, and the IPEX antenna connector allows a custom antenna tuned to the terminal enclosure. The GPIO coexistence lines arbitrate Bluetooth transactions with WiFi activity to avoid dropped packets during checkout. PCI-compliant enclosures can integrate the LM813 with adequate antenna keep-out.
Рекомендуется
Smart Audio Docks and Streaming Adapters
The LM813 supports Bluetooth A2DP for audio streaming from phones and WiFi 802.11ac for multi-room audio protocols such as AirPlay or Chromecast. Dual-band operation reduces interference from neighboring WiFi networks in apartment deployments. The 1x1 SISO configuration is sufficient for compressed audio streams but limits uncompressed hi-fi use cases. Place the IPEX antenna near the top of the enclosure and provide a clean 3V3 supply to minimize pop-noise during WiFi association.
Рекомендуется
Wireless HMI Panels and Touchscreen Controllers
The LM813 enables over-the-air firmware updates and configuration for industrial HMI panels via WiFi while supporting Bluetooth for service technician pairing with a tablet. The USB interface simplifies integration with industrial touch controllers that include a USB host port. The combo module reduces the PCB footprint versus using separate WiFi and Bluetooth modules, freeing space for the touchscreen driver and backlight power stages. Industrial variants with extended temperature ranges should be requested for harsh environments.
Рекомендуется
Connected Medical Devices
The LM813 fits connected medical devices such as patient monitors and infusion pumps that need reliable WiFi for EMR upload and Bluetooth for bedside accessory pairing. The dual-band WiFi supports 5 GHz channels that are typically less congested in hospital RF environments. The GPIO coexistence interface allows the device firmware to manage radio priority between continuous WiFi monitoring and intermittent Bluetooth data bursts. Confirm regulatory compliance (FDA, CE-MDR) when integrating wireless into medical systems.
Рекомендуется
Smart Home Gateways and Hubs
The LM813 serves smart home gateways that aggregate Zigbee, Z-Wave, or Thread radios over a Bluetooth/WiFi backhaul. The 802.11ac radio delivers ample bandwidth for cloud connectivity, while Bluetooth 4.2 dual-mode supports direct phone-based provisioning and fallback control when WiFi is unavailable. The USB host interface simplifies integration with gateway SoCs running Linux. Adequate antenna isolation between the LM813 and any sub-GHz radio must be designed into the enclosure.
Рекомендуется
Automotive Infotainment Accessories
The LM813 supports aftermarket automotive infotainment adapters that stream audio over Bluetooth A2DP and connect to in-car WiFi hotspots via 802.11ac. Dual-mode Bluetooth enables both Classic audio streaming and BLE-based driver-phone connectivity for contacts and messaging. The USB interface simplifies integration with Android-based head units. Confirm AEC-Q100 qualification requirements with LM Technologies if targeting OEM automotive programs; commercial-grade LM813 is suitable for aftermarket retrofits.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для LM813 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | LM813-0814 | LM813-0813 |
|---|---|---|---|
| Package / Form Factor | Module (IPEX antenna, USB host, GPIO) | Module (IPEX antenna, USB host, GPIO) - same | Module (IPEX antenna, USB host, GPIO) - same |
| Brand | LM Technologies | LM Technologies - same | LM Technologies - same |
| WiFi Standard | 802.11ac/a/b/g/n | 802.11ac/a/b/g/n | 802.11ac/a/b/g/n |
| Maximum WiFi Data Rate | 433 Mbps | 433 Mbps | 433 Mbps |
| Bluetooth Version | v2.1/v3.0/v4.2 dual-mode | v2.1/v3.0/v4.2 dual-mode | v2.1/v3.0/v4.2 dual-mode |
| WiFi Frequency Bands | 2.4 GHz + 5 GHz | 2.4 GHz + 5 GHz | 2.4 GHz + 5 GHz |
| Host Interface | USB + GPIO | USB + GPIO | USB + GPIO |
| Antenna Connector | IPEX / MHF receptacle | IPEX / MHF receptacle | IPEX / MHF receptacle |
| Spatial Streams | 1x1 SISO | 1x1 SISO | 1x1 SISO |
Ключевые отличия
- Dual-band 802.11ac in a compact combo module footprint (против LM813-0813 (earlier sub-version))
- USB host interface simplifies host integration (против SDIO-based combo modules (e.g., TI WL1837MOD variants))
- GPIO coexistence exposed for fine-grained radio arbitration (против Internal-coexistence combo modules)
Заметки по проектированию
Estimated: Place the LM813 module near the edge of the host board with a ground keep-out zone around the IPEX antenna feed line. RF trace length from the module's antenna output to the IPEX receptacle should be minimized (<5 mm) to preserve 5 GHz performance. Maintain a 50 ohm controlled-impedance feed if a pigtail is used; mismatched impedance degrades 802.11ac EVM and reduces effective throughput.
Supply the LM813 from a clean 3.3 V rail with at least 10 uF of bulk decoupling plus a 0.1 uF ceramic capacitor close to the module supply pins. WiFi transmit bursts draw peak currents that can cause VCC droop and trigger WiFi retransmissions. Avoid sharing the LM813 supply rail with high-di/dt loads such as motor drivers or LED backlight boost converters; route a dedicated LDO output to the module.
Confirm the host-side driver stack supports the LM813 USB endpoint map before PCB integration. Some Linux kernels require out-of-tree driver blobs for combo modules, and Windows hosts need the LM Technologies driver package. Also verify GPIO coexistence pin assignments against the host SoC's GPIO muxing - misrouted coexistence signals cause Bluetooth audio glitches when WiFi is active.
Информация о соответствии
RoHS and lead-free per LM Technologies product page. REACH, halogen-free, and conflict-minerals declarations are not stated in the verified web data and should be requested from LM Technologies for production builds.