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QCA9880-BR4A
QCA9880-BR4A
| Part Number | QCA9880-BR4A |
|---|---|
| Manufacturer | Qualcomm / Atheros |
| Category | Integrated Circuits (ICs) > RF & Wireless > Wi-Fi Chips / Transceivers |
| Description | High-Performance 3×3 MIMO 802.11ac/a/n 5GHz Wireless LAN System-on-Chip (SoC), PCIe 1.1 Interface, Integrated MAC/BB/Radio Transceiver, DRQFN / QFN Package. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The QCA9880-BR4A is a highly integrated single-chip WLAN SoC from Qualcomm Atheros for enterprise, commercial and premium residential 802.11ac Wi-Fi routers & access points. Operating exclusively on the 5GHz band, it supports 3×3 MIMO with PHY speeds up to 1.3Gbps. Integrating 5GHz RF transceiver, baseband and MAC controller with PCIe 1.1 interface inside compact DRQFN housing. Equipped with TxBF, DFS and LDPC to deliver stable coverage, low latency and consistent throughput for bandwidth-intensive network hardware.
Core Advantages
Ultra-Fast 1.3Gbps 3×3 802.11ac Performance
Supports 3 spatial streams and 80MHz channel bandwidth on 5GHz band, reaching up to 1.3Gbps to support gigabit wireless transmission, 4K streaming and high-density concurrent user access.
Advanced Radio & Signal Processing
Equipped with implicit & explicit Beamforming, LDPC and STPC technology. Extends wireless coverage distance and improves connection stability under weak signal environments.
PCIe 1.1 High-Speed Host Interface
Single-lane PCI Express 1.1 bus provides low-latency high-bandwidth connection, easy to integrate with main processors for carrier-grade router and access point hardware.
High Integration Saves PCB Space
All-in-one MAC, baseband and 5GHz RF circuitry housed in 115-pin DRQFN package. Reduces peripheral component count, simplifies PCB layout and lowers thermal management pressure.
Key Specifications
| Brand | Qualcomm / Atheros |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free / Green |
| EDA/CAD | Symbol, Footprint & 3D Model Available |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | DRQFN / QFN |
| Mounting Type | Surface Mount (SMD / SMT) |
| Surface Marking / Silkscreen | QCA9880-BR4A Marking |
| Supported Wi-Fi Standards | IEEE 802.11ac, 802.11a, 802.11n |
| Frequency Band | 5 GHz (5150 MHz ~ 5825 MHz) |
| Channel Bandwidth | 20 MHz / 40 MHz / 80 MHz |
| MIMO Configuration | 3×3 MIMO (3 Transmit, 3 Receive, 3 Spatial Streams) |
| Modulation Scheme | BPSK, QPSK, 16-QAM, 64-QAM, 256-QAM |
| Max Data Transfer Rate | Up to 1.3 Gbps (at 80 MHz channel width, 256-QAM) |
| Host Interface | PCI Express (PCIe) 1.1 x1 |
| Supply Voltage | 3.0 V ~ 3.6 V, Typical 3.3 V |
| Advanced Features | TxBF, LDPC, STBC, DFS, MRC, TPC |
| Operating Temperature Range | 0°C ~ +60°C Commercial Grade; Extended -40°C ~ +70°C available on module solutions |
| Package Format | Tape & Reel / Tray |
Typical Applications
- Enterprise-grade dual-band / tri-band 802.11ac wireless access points (APs)
- High-end carrier residential gateways, Wi-Fi mesh nodes, and broadband routers
- Industrial wireless bridges, outdoor long-range point-to-point/point-to-multipoint links
- PCIe mini card / M.2 wireless modules for embedded single-board computers
- High-density commercial Wi-Fi hotspots and stadium wireless infrastructure
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: Does QCA9880-BR4A support both 2.4GHz and 5GHz?
A: No, it is a single 5GHz band 802.11ac chip. It needs to pair with separate 2.4GHz IC (e.g.QCA9558/QCA8882) for dual-band devices.
Q2: What host interface does QCA9880-BR4A adopt?
A: Single-lane PCIe 1.1 interface, low latency and high throughput for router/AP main processor connection.
Q3: What open-source driver can be used?
A: Supported by ath10k Linux driver, compatible with OpenWrt, Lede and mainstream embedded router firmware.
Q4: What is the maximum physical rate?
A: Up to 1.3Gbps, 3×3 MIMO, 80MHz bandwidth & 256-QAM under 802.11ac mode.
Q5: What are alternative & compatible chips?
A: Drop-in & performance reference: QCA9882 (3×3 5GHz, similar performance); QCA9862 (2×2 5GHz, cost-down option). Not pin-to-pin compatible, PCB redesign required.
Q6: What’s the difference between QCA9880 and QCA9882?
A: Both are 5GHz 802.11ac; QCA9880-BR4A: 115pin DRQFN; QCA9882 has different package variant. They share similar software driver but cannot directly replace without hardware adjustment.
Q7: Can QCA9880-BR4A work as USB Wi-Fi adapter?
A: No. Native interface is PCIe only. Many online “USB QCA9880” listings refer to finished modules, not bare IC specification.
Q8: What typical applications for this chip?
A: Enterprise Wi-Fi AP, high-end home routers, industrial wireless gateway, 5GHz dedicated wireless transmission equipment.
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