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SKY85747-11

5GHz Wi-Fi 6 FEM, +18.5dBm MCS11, 34.5dB Tx gain, 16dB Rx gain, LGA-24 (3x5mm)

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Manufacturer Part：

SKY85747-11

Package：

LGA-24 (3.0 x 5.0 x 1.2 mm)

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Description

Product Overview

The SKY85747-11 from Skyworks Solutions is a highly integrated 5 GHz front-end module (FEM) for 802.11ax WLAN applications, incorporating a transmit/receive switch, a high-gain LNA with bypass, and a high-power PA in a compact 24-pin 3 x 5 mm LGA package. It supports +18.5 dBm output power at -43 dB DEVM MCS11 with 34.5 dB transmit gain and 16 dB receive gain, enabling high-performance Wi-Fi 6 router and access point designs.

Key Specifications

Frequency Range 5.15 GHz to 5.925 GHz
Transmit Gain 34.5 dB
Receive Gain (LNA active) 16 dB
Output Power (802.11ax MCS11) +18.5 dBm / -43 dB DEVM
Noise Figure 2.4 dB (max)
Supply Voltage 4.2 V to 5.5 V (PA), 3.3-5 V (LNA)
IIP3 (LNA active) +7 to +11 dBm
Power Detector Slope 20-24 mV/dB
Operating Temperature -40°C to +85°C

Features

  • Fully matched input and output for easy PCB integration
  • Integrated logarithmic power detector and directional coupler for DPD
  • Highly sensitive, jammer-tolerant LNA with bypass mode
  • Compact 24-pin 3 x 5 mm LGA package reduces front-end board space by over 50%
  • Supports Wi-Fi 6 (802.11ax) with high MCS rates and OFDMA

Applications

  • 802.11ax Wi-Fi 6 routers and access points
  • WLAN-enabled wireless video streaming systems
  • Enterprise and residential mesh networking
  • Gaming routers and high-throughput wireless bridges

The SKY85747-11 from Skyworks Solutions is a highly integrated 5 GHz front-end module designed for high-power 802.11ax (Wi-Fi 6) networking applications. The module incorporates a single-pole, double-throw (SPDT) transmit/receive switch, a high-gain low-noise amplifier (LNA) with bypass, and a power amplifier (PA) in a single compact package. The PA delivers +18.5 dBm output power at -43 dB DEVM for MCS11 802.11ax signals with 34.5 dB transmit gain. The LNA provides 16 dB gain with 2.0 dB typical noise figure and jammer tolerance with IIP3 up to +11 dBm. An integrated logarithmic power detector provides closed-loop power control over 20 dB of dynamic range, and a directional coupler supports digital predistortion (DPD). The device is packaged in a 24-pin 3 x 5 mm LGA, reducing front-end board space by more than 50%.

The SKY85747-11 integrates three RF signal path subsystems controlled by two logic pins (PA_EN, LNA_EN). (1) Transmit Path: The PA consists of three gain stages (VCC1, VCC2, VCC3) optimized for high linearity and efficiency at 5 V supply. The integrated log detector monitors output power and provides a proportional DC voltage (20-24 mV/dB slope) for closed-loop APC. The directional coupler (CPLR pin) samples forward power for DPD feedback. (2) Receive Path: The LNA is a low-noise GaAs pHEMT design with 16 dB gain and 2.0 dB NF, featuring a bypass mode that degrades gain by approximately 23 dB for high-signal conditions. The SPDT T/R switch routes the antenna signal to either the PA output or LNA input. (3) Control Logic: PA_EN enables the transmit chain and T/R switch to TX position; LNA_EN enables the receive chain and T/R switch to RX position. Both pins low puts the device in idle mode with minimal leakage current.

Pin Name Type Function
1 GND Ground RF ground
2 TX_IN RF Input Transmit RF input (50Ω matched)
3 GND Ground RF ground
4-5 N/U – Not used (connect to GND)
6 DET Output Logarithmic power detector output
7 GND Ground RF ground
8 CPLR Output DPD coupler output
9 GND Ground RF ground
10 PA_EN Input TX enable (active high)
11 GND Ground RF ground
12 ANT RF I/O Antenna port (50Ω matched)
13 LNA_EN Input RX enable (active high)
14 RX_OUT RF Output Switch RX output
15 GND Ground RF ground
16 LNA_IN RF Input LNA input
17 LNA_OUT RF Output LNA output
18 GND Ground RF ground
19 VDD Power LNA supply voltage
20-22 GND Ground RF ground
22 VCC3 Power PA third stage supply
23 VCC2 Power PA second stage supply
24 VCC1 Power PA first stage supply
  • 802.11ax (Wi-Fi 6) enterprise and residential routers and access points
  • WLAN-enabled wireless video streaming and surveillance systems
  • Mesh networking nodes requiring high linear output power and sensitive receivers
  • Gaming routers and high-throughput wireless bridges with DPD support
Manufacturer Part Number Package Notes
Skyworks SKY85736-11 LGA-24 802.11ac predecessor, lower power
Qorvo QPF4528 LGA-24 5GHz Wi-Fi 6 FEM, similar spec
Microchip MaXLinear MXL54122 LGA-16 5GHz FEM, 802.11ax
Qorvo QPF4506 LGA-24 5GHz 802.11ax FEM
Skyworks SKY85748-11 LGA-24 Higher power 802.11ax variant
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

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Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
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For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

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If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

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Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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  • Air Freight: 7 – 12 working days
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5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

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5. Sourcing for Special Components

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6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

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2. Classified Professional Packaging

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  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

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We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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