{"id":626,"date":"2025-08-12T03:20:57","date_gmt":"2025-08-12T03:20:57","guid":{"rendered":"https:\/\/www.fairply.com\/blog\/?post_type=product&#038;p=626"},"modified":"2025-09-08T09:45:37","modified_gmt":"2025-09-08T01:45:37","slug":"idt821034-quad-pcm-codec-with-programmable-gain","status":"publish","type":"product","link":"https:\/\/www.fairply.com\/blog\/product\/idt821034-quad-pcm-codec-with-programmable-gain\/","title":{"rendered":"IDT821034-QUAD PCM CODEC WITH PROGRAMMABLE GAIN"},"content":{"rendered":"<p><span style=\"color: #0000ff;\">\u5ee0\u724c:IDT (Integrated Device Technology)<\/span><br \/>\n<span style=\"color: #0000ff;\">\u5c01\u88dd\u6a23\u5f0f:PQFP-52<\/span><br \/>\n<span style=\"color: #0000ff;\">\u5305\u88dd:\u76e4<\/span><\/p>\n<p><strong><span style=\"color: #0000ff;\">DESCRIPTION<\/span><\/strong><br \/>\nThe IDT821034 is a single-chip, four channel PCM CODEC with on-chip filters and programmable gain setting. This device provides both\u03bc-Lawand A-Law companding digital-to-analog and analog-to-digitalconversions based on ITU-T G.711 &#8211; G.714 specifications. The digitalfilters in IDT821034 provides the necessary transmit and receive filteringfor voice telephone circuit to interface with time-division multiplexedsystems.<\/p>\n<p>The IDT821034 has a flexible PCM interface with softwareselectable timing modes and independently programmable time slot foreach transmit and receive channel. It also integrates the SLIC signalingfunctions through internal registers. The CODEC and SLIC control\/statusregisters are accessed via the Serial Control Interface.The IDT821034 can be used in digital telecommunication applicationssuch as PBX, Central Office Switch, Digital Telephone and Integrated Voice\/Data Access Unit.<\/p>\n<hr \/>\n<style id=\"wpforms-css-vars-765\">\n\t\t\t\t#wpforms-765 {\n\t\t\t\t--wpforms-container-padding: 0px;\n--wpforms-container-border-width: 1px;\n--wpforms-container-border-radius: 3px;\n--wpforms-background-color: rgba(0, 0, 0, 0);\n--wpforms-field-size-input-height: 43px;\n--wpforms-field-size-input-spacing: 15px;\n--wpforms-field-size-font-size: 16px;\n--wpforms-field-size-line-height: 19px;\n--wpforms-field-size-padding-h: 14px;\n--wpforms-field-size-checkbox-size: 16px;\n--wpforms-field-size-sublabel-spacing: 5px;\n--wpforms-field-size-icon-size: 1;\n--wpforms-label-size-font-size: 16px;\n--wpforms-label-size-line-height: 19px;\n--wpforms-label-size-sublabel-font-size: 14px;\n--wpforms-label-size-sublabel-line-height: 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)();\n\t\t\t<\/script><\/div><!-- .wpforms-field-container --><div class=\"wpforms-submit-container\" ><input type=\"hidden\" name=\"wpforms[id]\" value=\"765\"><input type=\"hidden\" name=\"page_title\" value=\"\"><input type=\"hidden\" name=\"page_url\" value=\"https:\/\/www.fairply.com\/blog\/wp-json\/wp\/v2\/product\/626\"><input type=\"hidden\" name=\"url_referer\" value=\"\"><button type=\"submit\" name=\"wpforms[submit]\" id=\"wpforms-submit-765\" class=\"wpforms-submit\" data-alt-text=\"Sending...\" data-submit-text=\"\u9001\u51fa(Submit)\" aria-live=\"assertive\" value=\"wpforms-submit\">\u9001\u51fa(Submit)<\/button><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.fairply.com\/blog\/wp-content\/plugins\/wpforms-lite\/assets\/images\/submit-spin.svg\" class=\"wpforms-submit-spinner\" style=\"display: none;\" width=\"26\" height=\"26\" alt=\"Loading\"><\/div><\/form><\/div>  <!-- .wpforms-container -->\n","protected":false},"excerpt":{"rendered":"<p><strong><span style=\"color: #0000ff;\">\u4ecb\u7d39<\/span><\/strong><br \/>\nQUAD PCM CODEC WITH PROGRAMMABLE GAIN<\/p>\n<p><strong><span style=\"color: #0000ff;\">FEATURES<\/span><\/strong><\/p>\n<p>\u25cf 4 channel CODEC with on-chip digital filters<br \/>\n\u25cf Software Selectable A-law\/\u03bc-law companding<br \/>\n\u25cf Programmable gain setting<br \/>\n\u25cf Automatic master clock frequency selection: 2.048MHz, 4.096MHz or 8.192MHz<br \/>\n\u25cf Flexible PCM interface with up to 128 programmable time slots, data rate from 512 kbits\/s to 8.192 Mbits\/s<br \/>\n\u25cf 5 SLIC signaling pins per channel<br \/>\n\u25cf Flexible Serial Control Interface to microcontroller<br \/>\n\u25cf Software programmable timing modes<br \/>\n\u25cf TTL and CMOS compatible digital I\/O<br \/>\n\u25cf Meets or exceeds ITU-T G.711 &#8211; G.714 requirements<br \/>\n\u25cf +5 V single power supply<br \/>\n\u25cf Low power consumption: 100mW Typ.Operating temperature range: -40 \u00b0C to +85 \u00b0C<br \/>\n\u25cf Packages available: 52 pin PQFP<\/p>\n","protected":false},"featured_media":617,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[44],"product_cat":[45],"product_tag":[],"class_list":{"0":"post-626","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-44","7":"product_cat-ic","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>IDT821034-QUAD PCM CODEC WITH PROGRAMMABLE GAIN - FAIRPLY ENTERPRISES INC.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fairply.com\/blog\/product\/idt821034-quad-pcm-codec-with-programmable-gain\/\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta 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