{"product_id":"25-pcs-lm4548vh-national-semi-ic-audio-circuit-qfp48-1","title":"(25 PCS) LM4548VH NATIONAL SEMI IC AUDIO CIRCUIT QFP48","description":"\u003cdiv id=\"inkfrog_crosspromo_top\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"inkfrog_crosspromo_top\"\u003e\u003c\/div\u003e\n\u003clink href=\"\/\/open.inkfrog.com\/templates\/designer\/styles\/user\/124927.css\" rel=\"stylesheet\" type=\"text\/css\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont face=\"Arial\"\u003e\u003cspan style=\"font-size: 14pt;\"\u003eTHIS LISTING IS FOR (25 PCS) OF LM4548VHX  BY NATIONAL SEMI\u003c\/span\u003e\u003c\/font\u003e\u003cdiv\u003e\u003cfont face=\"Arial\"\u003e\u003cspan style=\"font-size: 18.6667px;\"\u003eIC AUDIO CIRCUIT QFP48\u003c\/span\u003e\u003c\/font\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cfont face=\"Arial\"\u003e\u003cspan style=\"font-size: 18.6667px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/div\u003e\n\u003cdiv\u003eAC ’97 Rev 2 Codec with Sample Rate Conversion and\nNational 3D Sound\u003c\/div\u003e\n\u003cdiv\u003eKey Specifications\nn Analog Mixer Dynamic Range 97dB (typ)\nn D\/A Dynamic Range 89dB (typ)\nn A\/D Dynamic Range 90dB (typ)\nFeatures\nn AC’97 Rev2 compliant\nn National’s 3D Sound circuitry\nn High quality Sample Rate Conversion (SRC) from 4kHz\nto 48kHz in 1Hz increments.\nn Multiple Codec Support\nn True Line Level Output with volume control in addition to\nstandard Line Out\nn Advanced power management support\nn Digital 3V and 5V compliant\nApplications\nn Desktop PC Audio Systems\nn Portable PC Systems\nn Mobile PC Systems\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eGeneral Description\nThe LM4548 is an audio codec for PC systems which is fully\nPC98 compliant and performs the analog intensive functions\nof the AC97 Rev2 architecture. Using 18-bit Sigma-Delta\nA\/D’s and D\/A’s, the LM4548 provides 90dB of Dynamic\nRange.\nThe LM4548 was designed specifically to provide a high\nquality audio path and provide all analog functionality in a PC\naudio system. It features full duplex stereo A\/D’s and D\/A’s\nand an analog mixer with 4 stereo and 3 mono inputs, each\nof which has separate gain, attenuation and mute control.\nThe LM4548 also provides the additional True Line-Level\noutput and National’s 3D Sound stereo enhancement.\nThe LM4548 supports variable sample rate conversion as\ndefined in the AC97 Rev2 specification. The sample rate for\nthe A\/D and D\/A can be programmed separately to convert\nany rate between 4kHz - 48kHz with a resolution of 1Hz. The\nAC97 architecture separates the analog and digital functions\nof the PC audio system allowing both for system design flexibility\nand increased performance.\u003c\/div\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\n\n\u003cdiv id=\"inkfrog_crosspromo_bottom\"\u003e\u003c\/div\u003e\u003cdiv id=\"inkfrog_credit\" style=\"margin-bottom:25px;width:100%;text-align:center;\"\u003e\n\u003cdiv class=\"inkfrog_promo\" style=\"margin-top:40px !important; \"\u003e\n\u003ca href=\"https:\/\/signin.ebay.com\/authorize?client_id=inkFrogI-eBayShop-PRD-45d7504c4-548de517\u0026amp;response_type=code\u0026amp;redirect_uri=inkFrog__Inc.-inkFrogI-eBaySh-vlfzfmcd\u0026amp;scope=https:\/\/api.ebay.com\/oauth\/api_scope%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.marketing.readonly%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.marketing%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.inventory.readonly%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.inventory%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.account.readonly%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.account%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.fulfillment.readonly%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.fulfillment%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.analytics.readonly\" style=\"border:0px;\" target=\"_blank\"\u003eListing and template services provided by inkFrog\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ca href=\"https:\/\/signin.ebay.com\/authorize?client_id=inkFrogI-eBayShop-PRD-45d7504c4-548de517\u0026amp;response_type=code\u0026amp;redirect_uri=inkFrog__Inc.-inkFrogI-eBaySh-vlfzfmcd\u0026amp;scope=https:\/\/api.ebay.com\/oauth\/api_scope%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.marketing.readonly%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.marketing%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.inventory.readonly%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.inventory%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.account.readonly%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.account%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.fulfillment.readonly%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.fulfillment%20https:\/\/api.ebay.com\/oauth\/api_scope\/sell.analytics.readonly\" style=\"border:0px;\" target=\"_blank\"\u003e\u003cimg src=\"\/\/open.inkfrog.com\/assets\/img\/logos\/logo_small.png\" style=\"border:0px;max-width:100%\" alt=\"inkFrog\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/hit.inkfrog.com\/t\/hit.gif\" style=\"max-width:100%\"\u003e","brand":"National Semiconductor","offers":[{"title":"Default Title","offer_id":42296862015543,"sku":"322316461910","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0103\/5124\/7415\/files\/10_a7f75028-b32e-40e2-99ac-8af0250dc22c.jpg?v=1783012435","url":"https:\/\/specialtypartsinc.com\/products\/25-pcs-lm4548vh-national-semi-ic-audio-circuit-qfp48-1","provider":"Specialty Parts \u0026 Electronic Components, Inc.","version":"1.0","type":"link"}