{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TDA7303","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TDA7303","canonicalUrl":"https://icboms.com/stmicroelectronics/TDA7303","factsUrl":"https://icboms.com/api/mcp/products/TDA7303","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics TDA7303 Audio Tone Processor, I²C Interface, 2-Channel, 6V-10V Supply, -40°C to 85°C, AEC-Q100, 28-SOIC (0.295\", 7.50mm Width), Tube.","salesMarkdown":"## What the AEC-Q100 grade means for your audio chain The TDA7303 is an I²C-controlled audio tone processor from STMicroelectronics, qualified to AEC-Q100 Grade 3 (-40°C to +85°C). The 1.25 dB step size on the tone control gives you fine-grained EQ adjustment without audible zipper noise on step changes. It runs on a 6V to 10V supply rail, which is the sweet spot for automotive head-unit power supplies derived from the 12V battery bus. The 2-channel configuration handles left-right stereo processing — bass, treble, and volume — through a single I²C bus, keeping the wiring harness simple. ## Package and board-fit for the 28-SOIC wide body Housed in a 28-SOIC wide-body package (7.50 mm body width), the TDA7303 is hand-solderable with a fine-tip iron and a steady hand — no hot-air rework station required. It ships in a Tube, so you get 28-30 parts per tube depending on the supplier's packing standard. The surface-mount footprint is standard for 28-SO wide — same land pattern as the TDA7719 and TDA7419, so if you're migrating between these parts the PCB layout stays the same. Just watch the supply voltage: the TDA7303 needs 6V-10V, while the TDA7419 runs on 8V nominal.","metaTitle":"STMicroelectronics TDA7303 Audio Tone Processor, I²C","metaDescription":"ST TDA7303 audio tone processor in 28-SOIC. I²C controlled, 2-channel, 6V-10V supply, -40°C to 85°C. AEC-Q100 automotive qualified. Active, RoHS3.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tube","Function":"Audio Tone Processor","Interface":"I²C","Applications":"Automotive Audio, Consumer Audio","Mounting Type":"Surface Mount","Package / Case":"28-SOIC (0.295\\\", 7.50mm Width)","Specifications":"1.25dB","lifecycle_stage":"eol_hot","Voltage - Supply":"6V ~ 10V","Number of Channels":"2","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"28-SO"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.88","priceTiers":[{"qty":1,"price":"$2.88000","currency":"USD"},{"qty":10,"price":"$2.58300","currency":"USD"},{"qty":25,"price":"$2.43680","currency":"USD"},{"qty":100,"price":"$2.07630","currency":"USD"},{"qty":250,"price":"$1.94956","currency":"USD"},{"qty":500,"price":"$1.70586","currency":"USD"},{"qty":1000,"price":"$1.60930","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/70c4fe23ad099e1287e5b9c2349114c3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TDA7303/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to TDA7303 — TDA7719?","answer":"The TDA7719 is the closest peer: it is also AEC-Q100 qualified, I²C controlled, and comes in the same 28-SOIC package. The key difference is channel count — TDA7303 has 2 channels (stereo tone processing), while TDA7719 has 3 channels (left, right, and subwoofer or center). If your design needs only stereo, the TDA7303 is the direct fit; if you need a third channel for a dedicated subwoofer output, the TDA7719 is the migration path without a PCB change."},{"question":"What compliance documentation does STMicroelectronics provide for TDA7303?","answer":"STMicroelectronics provides a RoHS certificate of compliance and material declaration upon request. No UL or IEC certification is listed for this part — it is a standard commercial/automotive IC, not a safety-critical component requiring agency listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TDA7303","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TDA7303 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}