{"id":6304,"date":"2026-06-12T11:25:05","date_gmt":"2026-06-12T11:25:05","guid":{"rendered":"https:\/\/materialparts.com\/sa58631tk\/"},"modified":"2026-06-12T11:25:05","modified_gmt":"2026-06-12T11:25:05","slug":"sa58631tk","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/sa58631tk\/","title":{"rendered":"SA58631TK"},"content":{"rendered":"

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

The SA58631TK from NXP Semiconductors is a 1W BTL audio amplifier with integrated DC volume control in an HVQFN-16 (3x3mm) package. Operating from 2.5V-5.5V, it features 32-step digital volume control and 0.1% THD+N for clean audio reproduction in portable devices.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Output Power<\/td>\n1W @8\u03a9, 5V, THD=10%<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.5V – 5.5V<\/td>\n<\/tr>\n
Gain<\/td>\n20dB fixed or adjustable<\/td>\n<\/tr>\n
DC Volume Control<\/td>\n32 steps<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n3mA (typ)<\/td>\n<\/tr>\n
\u5173\u673a\u7535\u6d41<\/td>\n100nA<\/td>\n<\/tr>\n
THD+N<\/td>\n0.1% @1kHz, 0.5W<\/td>\n<\/tr>\n
PSRR<\/td>\n60dB<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nHVQFN-16 (3x3mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 1W BTL output for direct speaker drive without coupling capacitors<\/li>\n
  • 32-step DC volume control eliminates external potentiometer<\/li>\n

0.1% THD+N for high-fidelity audio reproduction<\/td>\n
  • 100nA shutdown current for ultra-low standby power<\/li>\n
  • Pop-and-click suppression for clean power transitions<\/li>\n
  • Short-circuit and thermal protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Portable speaker and Bluetooth speaker amplification<\/li>\n
    • Mobile phone hands-free speaker driver<\/li>\n
    • Portable gaming device audio output<\/li>\n
    • GPS navigation voice output amplifier<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SA58631TK from NXP Semiconductors is a 1W BTL audio amplifier with integrated DC volume control in an HVQFN-16 (3x3mm) package. Operating from 2.5V-5.5V, it features 32-step digital volume control and 0.1% THD+N for clean audio reproduction in portable devices. Key Specifications Output Power 1W @8\u03a9, 5V, THD=10% Supply Voltage 2.5V – 5.5V […]<\/p>\n","protected":false},"author":2,"featured_media":6354,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[],"chip_brand":[168],"class_list":["post-6304","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-nxp"],"acf":{"brief_explanation":"1W BTL audio amplifier with 32-step DC volume control, 0.1% THD+N, HVQFN-16 3x3mm","date_code":"","package_case":"HVQFN-16 (3x3x0.85mm)","in_stock":14333,"datasheet":"https:\/\/www.nxp.com\/docs\/en\/data-sheet\/SA58631.pdf","price":"$0.85 @1ku","product_introduction":"The SA58631TK from NXP Semiconductors is a Bridge-Tied Load (BTL) audio amplifier with integrated 32-step DC volume control. Delivering 1W into an 8\u03a9 speaker from a 5V supply, it eliminates the need for an external volume potentiometer by accepting a DC voltage level to set the gain. The 0.1% THD+N at 0.5W ensures clean audio quality, while the 100nA shutdown current preserves battery life in portable applications. The compact HVQFN-16 (3x3mm) package enables integration in space-constrained portable audio designs.","working_principle":"The SA58631TK uses a Bridge-Tied Load (BTL) output configuration where two amplifiers drive the speaker differentially, doubling the voltage swing across the load compared to single-ended designs. This allows 1W output from a 5V supply without large DC-blocking capacitors. The DC volume control works by comparing an external DC voltage on the VOLUME pin with an internal reference ladder, selecting one of 32 gain settings. The input stage includes a differential amplifier that rejects common-mode noise. Pop-and-click suppression circuitry gradually ramps the output common-mode voltage during power-on\/off transitions, preventing audible transients in the speaker.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>VDD<\/td>Power supply (2.5-5.5V)<\/td><\/tr>
      2<\/td>VOLUME<\/td>DC volume control input<\/td><\/tr>
      3-4<\/td>IN+\/IN-<\/td>Differential audio input<\/td><\/tr>
      5<\/td>BYPASS<\/td>Internal reference bypass<\/td><\/tr>
      6<\/td>SVDD<\/td>Speaker amplifier supply<\/td><\/tr>
      7-8<\/td>OUT+\/OUT-<\/td>BTL speaker output<\/td><\/tr>
      9<\/td>SGND<\/td>Signal ground<\/td><\/tr>
      10<\/td>PGND<\/td>Power ground<\/td><\/tr>
      11<\/td>\/SD<\/td>Shutdown control (active low)<\/td><\/tr>
      12-16<\/td>NC\/RES<\/td>No connect \/ Reserved<\/td><\/tr><\/table>","application_scenarios":"
      • Portable Bluetooth speaker and wireless audio amplification<\/li>
      • Mobile phone hands-free speakerphone output<\/li>
      • Portable gaming console audio driver<\/li>
      • GPS and navigation device voice output<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Pout<\/th>THD+N<\/th>Volume<\/th><\/tr>
        SA58632TK<\/td>NXP<\/td>1W<\/td>0.1%<\/td>I2C<\/td><\/tr>
        TS4990<\/td>ST<\/td>1.2W<\/td>0.2%<\/td>None<\/td><\/tr>
        LM4871<\/td>TI<\/td>1W<\/td>0.5%<\/td>None<\/td><\/tr>
        PAM8302A<\/td>Diodes Inc<\/td>1.5W<\/td>0.2%<\/td>None<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6304","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=6304"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6304\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/6354"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6304"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6304"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}