SKY85712-21 Datasheet – 5 GHz WLAN Front-End Module

SKY85712-21 Datasheet, Pinout, Circuit, Equivalent, Schematic, Price learn more.

Part number : SKY85712-21

Functions : This is a 5 GHz WLAN Front-End Module.

Package : Small QFN (16-pin, 3 x 3 mm) package

Manufacturer : Skyworks Solutions

SKY85712-21 datasheet

General Information

The SKY85712-21 is a highly integrated, 5 GHz front-end module (FEM) incorporating a 5 GHz single-pole, double-throw (SPDT) transmit/receive (T/R) switch, a 5 GHz low-noise amplifier (LNA) with bypass, and a 5 GHz power amplifier (PA) intended for mobile/portable 802.11ac applications and systems. The LNA and PA disable functions ensure low leakage current in off mode. An integrated power detector is included to provide closed-loop power control within the system.

Pinout ( Pin arrangement )

SKY85712-21 pinout



1. Integrated high-performance 5 GHz PA, LNA with bypass, and T/R switch
2. Fully-matched input and output
3. Integrated power detector and directional coupler
4. Transmit gain: 27 dB
5. Receive gain: 12 dB
6. Output power: +19 dBm @ 1.8% EVM, HT80, MCS9, 5 V/4.2 V
7. Output power: +20 dBm @ 3% EVM, HT40, MCS7, 5 V/4.2 V


1. 802.11ac networking and personal computing systems
2. PC cards, PCMCIA cards, mini-cards, and half mini-cards
3. WLAN-enabled wireless video systems

Block Diagram
SKY85712-21 block diagram


SKY85712-21 Datasheet PDF File


AW8736 Datasheet – Sixth generation Class K Audio Amplifier

AW8736 Datasheet PDF learn more.

Part number : AW8736

Functions : This is a kind of semiconductor, Sixth generation Class K Audio Amplifier.

Package information : Small 2mm×2mm FC-16package


Image :

AW8736 datasheet

The textsin the PDF file :

AW8736 is designed to enhance smart mobile phone sound quality,which is a new high efficiency, ultra-low distortion, constant large volume, sixth generation class K audio amplifiers. Using a new generation of charge pump technology:K -Chargepump structure, efficiency as high as 92%, power amplifier’s overall efficiency reaches 75%, greatly prolong the mobile phone usage time. 0.02% ultra-low distortion and unique no-crack-noise (NCN) technology brings high quality music enjoyment.

AW8736 integrated K-Chargepump booster circuit, the output power cannot drop along with lithium battery voltage lower down. Within lithium battery voltage range(3.3 V – 4.35V), output power is constant, providing high quality music enjoyment. AW8736 has 0.8 W, 1 W and 1.2 W three output power level, recommended using rated power of 0.7W and above speakers, which greatly improve the volume, and effectively protect speakers. [ … ]


AW8736 pinout


1. New generation charge pump technology : K-Chargepump,efficiency reaches as high as 92%
2. Power amplifier overall efficiency 75%,greatly prolong mobile phone usage time
3. Ultra-low distortion:0.02%
4. Within Lithium battery voltage range, output power is maintained constant
5. Output Power level:0.8W、1W、1.2W
6. Second generation No-crack-noise (NCN) technology
7. Super TDD-Noise suppression
8. Ultra-low EMI
9. One wire pulse control


AW8736 Circuit


AW8736 PDF File