{"id":7052,"date":"2026-06-23T02:56:04","date_gmt":"2026-06-23T02:56:04","guid":{"rendered":"https:\/\/materialparts.com\/sky85747-11\/"},"modified":"2026-06-23T02:56:04","modified_gmt":"2026-06-23T02:56:04","slug":"sky85747-11","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/sky85747-11\/","title":{"rendered":"SKY85747-11"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

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.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Frequency Range<\/td>\n5.15 GHz to 5.925 GHz<\/td>\n<\/tr>\n
Transmit Gain<\/td>\n34.5 dB<\/td>\n<\/tr>\n
Receive Gain (LNA active)<\/td>\n16 dB<\/td>\n<\/tr>\n
Output Power (802.11ax MCS11)<\/td>\n+18.5 dBm \/ -43 dB DEVM<\/td>\n<\/tr>\n
Noise Figure<\/td>\n2.4 dB (max)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n4.2 V to 5.5 V (PA), 3.3-5 V (LNA)<\/td>\n<\/tr>\n
IIP3 (LNA active)<\/td>\n+7 to +11 dBm<\/td>\n<\/tr>\n
Power Detector Slope<\/td>\n20-24 mV\/dB<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Fully matched input and output for easy PCB integration<\/li>\n
  • Integrated logarithmic power detector and directional coupler for DPD<\/li>\n
  • Highly sensitive, jammer-tolerant LNA with bypass mode<\/li>\n
  • Compact 24-pin 3 x 5 mm LGA package reduces front-end board space by over 50%<\/li>\n
  • Supports Wi-Fi 6 (802.11ax) with high MCS rates and OFDMA<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • 802.11ax Wi-Fi 6 routers and access points<\/li>\n
    • WLAN-enabled wireless video streaming systems<\/li>\n
    • Enterprise and residential mesh networking<\/li>\n
    • Gaming routers and high-throughput wireless bridges<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      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 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[159],"class_list":["post-7052","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-qorvo"],"acf":{"brief_explanation":"5GHz Wi-Fi 6 FEM, +18.5dBm MCS11, 34.5dB Tx gain, 16dB Rx gain, LGA-24 (3x5mm)","date_code":"","package_case":"LGA-24 (3.0 x 5.0 x 1.2 mm)","in_stock":4567,"datasheet":"https:\/\/www.skyworksinc.com\/-\/media\/SkyWorks\/Documents\/Products\/2701-2800\/SKY85747-11_203929N.pdf","price":"$1.98 @ 1ku","product_introduction":"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%.","working_principle":"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_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>GND<\/td>Ground<\/td>RF ground<\/td><\/tr>
      2<\/td>TX_IN<\/td>RF Input<\/td>Transmit RF input (50\u03a9 matched)<\/td><\/tr>
      3<\/td>GND<\/td>Ground<\/td>RF ground<\/td><\/tr>
      4-5<\/td>N\/U<\/td>-<\/td>Not used (connect to GND)<\/td><\/tr>
      6<\/td>DET<\/td>Output<\/td>Logarithmic power detector output<\/td><\/tr>
      7<\/td>GND<\/td>Ground<\/td>RF ground<\/td><\/tr>
      8<\/td>CPLR<\/td>Output<\/td>DPD coupler output<\/td><\/tr>
      9<\/td>GND<\/td>Ground<\/td>RF ground<\/td><\/tr>
      10<\/td>PA_EN<\/td>Input<\/td>TX enable (active high)<\/td><\/tr>
      11<\/td>GND<\/td>Ground<\/td>RF ground<\/td><\/tr>
      12<\/td>ANT<\/td>RF I\/O<\/td>Antenna port (50\u03a9 matched)<\/td><\/tr>
      13<\/td>LNA_EN<\/td>Input<\/td>RX enable (active high)<\/td><\/tr>
      14<\/td>RX_OUT<\/td>RF Output<\/td>Switch RX output<\/td><\/tr>
      15<\/td>GND<\/td>Ground<\/td>RF ground<\/td><\/tr>
      16<\/td>LNA_IN<\/td>RF Input<\/td>LNA input<\/td><\/tr>
      17<\/td>LNA_OUT<\/td>RF Output<\/td>LNA output<\/td><\/tr>
      18<\/td>GND<\/td>Ground<\/td>RF ground<\/td><\/tr>
      19<\/td>VDD<\/td>Power<\/td>LNA supply voltage<\/td><\/tr>
      20-22<\/td>GND<\/td>Ground<\/td>RF ground<\/td><\/tr>
      22<\/td>VCC3<\/td>Power<\/td>PA third stage supply<\/td><\/tr>
      23<\/td>VCC2<\/td>Power<\/td>PA second stage supply<\/td><\/tr>
      24<\/td>VCC1<\/td>Power<\/td>PA first stage supply<\/td><\/tr><\/table>","application_scenarios":"
      • 802.11ax (Wi-Fi 6) enterprise and residential routers and access points<\/li>
      • WLAN-enabled wireless video streaming and surveillance systems<\/li>
      • Mesh networking nodes requiring high linear output power and sensitive receivers<\/li>
      • Gaming routers and high-throughput wireless bridges with DPD support<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Skyworks<\/td>SKY85736-11<\/td>LGA-24<\/td>802.11ac predecessor, lower power<\/td><\/tr>
        Qorvo<\/td>QPF4528<\/td>LGA-24<\/td>5GHz Wi-Fi 6 FEM, similar spec<\/td><\/tr>
        Microchip<\/td>MaXLinear MXL54122<\/td>LGA-16<\/td>5GHz FEM, 802.11ax<\/td><\/tr>
        Qorvo<\/td>QPF4506<\/td>LGA-24<\/td>5GHz 802.11ax FEM<\/td><\/tr>
        Skyworks<\/td>SKY85748-11<\/td>LGA-24<\/td>Higher power 802.11ax variant<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7052","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=7052"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7052\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7052"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7052"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}