{"id":7466,"date":"2026-06-24T07:10:03","date_gmt":"2026-06-24T07:10:03","guid":{"rendered":"https:\/\/materialparts.com\/tql9047\/"},"modified":"2026-06-24T07:10:03","modified_gmt":"2026-06-24T07:10:03","slug":"tql9047","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tql9047\/","title":{"rendered":"TQL9047"},"content":{"rendered":"

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

The TQL9047 from Qorvo is a 50-4200MHz high-linearity gain block amplifier with integrated shutdown function. Providing 14.5dB gain, +35.5dBm OIP3, and 1.6dB noise figure from a single 5V\/70mA supply, it serves both receiver and transmitter chains in a compact 2x2mm DFN-8 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Frequency Range<\/td>\n50 – 4200 MHz<\/td>\n<\/tr>\n
Gain<\/td>\n14.5 dB (0.7-2.7GHz flat)<\/td>\n<\/tr>\n
Output IP3<\/td>\n+35.5 dBm<\/td>\n<\/tr>\n
Output P1dB<\/td>\n+20.8 dBm<\/td>\n<\/tr>\n
Noise Figure<\/td>\n1.6 dB @ 1.9GHz<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.3V to 5V<\/td>\n<\/tr>\n
Supply Current<\/td>\n70 mA @ 5V<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nDFN-8 (2 x 2 mm)<\/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
  • Wideband 50-4200MHz operation covering cellular and sub-6GHz bands<\/li>\n
  • High OIP3 of +35.5dBm for excellent linearity in demanding systems<\/li>\n
  • Low 1.6dB noise figure suitable for receiver front-end applications<\/li>\n
  • Integrated shutdown control for TDD applications<\/li>\n
  • Internal active bias circuit for stable operation over temperature<\/li>\n
  • 50-ohm internally matched input and output<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Cellular base station transceiver gain blocks<\/li>\n
    • Point-to-point radio IF amplifier chains<\/li>\n
    • TDD\/FDD repeater and DAS systems<\/li>\n
    • Public safety communication equipment<\/li>\n
    • Test instrumentation RF front-ends<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TQL9047 from Qorvo is a 50-4200MHz high-linearity gain block amplifier with integrated shutdown function. Providing 14.5dB gain, +35.5dBm OIP3, and 1.6dB noise figure from a single 5V\/70mA supply, it serves both receiver and transmitter chains in a compact 2x2mm DFN-8 package. Key Specifications Frequency Range 50 – 4200 MHz Gain 14.5 dB […]<\/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-7466","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-qorvo"],"acf":{"brief_explanation":"50-4200MHz gain block amp, 14.5dB gain, +35.5dBm OIP3, 1.6dB NF, DFN-8","date_code":"","package_case":"DFN-8 (2 x 2 x 0.75 mm)","in_stock":2109,"datasheet":"https:\/\/www.qorvo.com\/products\/p\/TQL9047","price":".50 @ 500+","product_introduction":"The TQL9047 from Qorvo is a cascadable, high-linearity gain block amplifier built on a high-performance E-pHEMT process. Operating from 50MHz to 4200MHz, it provides 14.5dB of flat gain across the 700MHz to 2.7GHz range with excellent linearity (+35.5dBm OIP3) and low noise figure (1.6dB at 1.9GHz). The integrated active bias circuit ensures stable operation over temperature and supply variations from 3.3V to 5V, while the shutdown control pin enables TDD (time-division duplex) operation. The amplifier is internally matched to 50 ohms and requires no external RF matching components, simplifying PCB design in the compact 2x2mm DFN-8 package.","working_principle":"The TQL9047 operates as a single-stage E-pHEMT RF amplifier with integrated active bias. (1) The E-pHEMT transistor provides the gain and linearity, with the gate biased by the internal active bias network that maintains constant drain current over temperature and supply variations. (2) The input and output matching networks are integrated on-chip, providing 50-ohm impedance at both ports across the full 50-4200MHz frequency range, eliminating external matching components. (3) The shutdown control pin disables the bias network when pulled low, reducing current consumption to near zero for TDD applications where the amplifier alternates between transmit and receive modes. (4) The internal active bias and DC-blocking capacitors ensure unconditional stability across the operating frequency range.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>RFIN<\/td>RF input (50-ohm matched)<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td><\/tr>
      3<\/td>GND<\/td>Ground<\/td><\/tr>
      4<\/td>VD<\/td>Drain supply (3.3-5V)<\/td><\/tr>
      5<\/td>RFOUT<\/td>RF output (50-ohm matched)<\/td><\/tr>
      6<\/td>GND<\/td>Ground<\/td><\/tr>
      7<\/td>SD<\/td>Shutdown control (active low)<\/td><\/tr>
      8<\/td>GND<\/td>Ground<\/td><\/tr>
      Pad<\/td>GND<\/td>Exposed thermal pad (ground)<\/td><\/tr><\/table>","application_scenarios":"
      • Cellular base station receiver LNA and transmit driver gain stages<\/li>
      • Point-to-point microwave radio IF amplifier chains with TDD operation<\/li>
      • DAS and repeater systems requiring high linearity gain blocks<\/li>
      • Public safety communication equipment RF front-ends<\/li>
      • RF test instrumentation signal conditioning paths<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        TQL9062<\/td>Qorvo<\/td>50-6000MHz, higher OIP3<\/td><\/tr>
        TQP3M9035<\/td>Qorvo<\/td>50-4000MHz, active bias SOT-89<\/td><\/tr>
        QPA9126<\/td>Qorvo<\/td>1-6GHz gain block, DFN 2x2<\/td><\/tr>
        HMC321<\/td>Analog Devices<\/td>DC-6GHz gain block, SMT<\/td><\/tr>
        MAAL-011129<\/td>MACOM<\/td>50-6000MHz gain block, DFN<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7466","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=7466"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7466\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7466"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}