{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCMD3140IRTER","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"PCMD3140IRTER","canonicalUrl":"https://icboms.com/texas-instruments/PCMD3140IRTER","factsUrl":"https://icboms.com/api/mcp/products/PCMD3140IRTER","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments PCMD3140IRTER four-channel PDM-input to TDM-output audio ADC, 32-bit resolution, 768 kHz sampling, I²C/I²S/TDM interface, 20-WQFN exposed pad, -40 to 125°C.","salesMarkdown":"## PDM microphone hub for multichannel audio capture The PCMD3140IRTER is a four-channel audio ADC that converts PDM (pulse-density modulation) microphone streams into a TDM (time-division multiplexed) output, handling up to 768 kHz sampling per channel with resolution selectable from 16 to 32 bits. It communicates over I²C for control and I²S or TDM for audio data, making it a direct fit for digital microphone arrays in smart speakers, conferencing systems, and far-field voice capture where multiple mics need synchronised capture on a single bus. ## Supply rails and temperature grade Dual-supply operation — 1.7 V to 1.9 V for the digital core and 3 V to 3.6 V for the analog and microphone bias — lets the digital rail run from a low-voltage SoC supply while keeping the analog side at the 3.3 V level PDM mics expect. Rated across -40°C to 125°C ambient, the device suits automotive cabin or industrial enclosures where the board temperature cycles beyond commercial limits. ## Package and integration Housed in a 20-WFQFN with exposed pad (3 mm × 3 mm), the package requires a thermal land on the PCB to pull heat from the die — the pad should be soldered to a copper plane, not left floating, to keep junction temperature within the -40°C to 125°C operating range. Surface-mount assembly with the exposed pad means the reflow profile must follow the JEDEC J-STD-020 moisture sensitivity level for the package; the part ships in Tape & Reel or Cut Tape options.","metaTitle":"TI PCMD3140IRTER Audio ADC, 4-ch PDM-to-TDM, 32-bit","metaDescription":"Texas Instruments PCMD3140IRTER four-channel PDM-input to TDM-output audio ADC. 32-bit resolution, 768 kHz sampling, I²C/I²S/TDM interface, -40 to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Audio","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Data Interface":"I²C, I²S, TDM","Package / Case":"20-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"1.7V ~ 1.9V, 3V ~ 3.6V","Resolution (Bits)":"16 b, 20 b, 24 b, 32 b","Number of Channels":"4","Operating Temperature":"-40°C ~ 125°C (TA)","Voltage Supply Source":"Dual Supply","Supplier Device Package":"20-WQFN (3x3)","Sampling Rate (Per Second)":"7.35k ~ 768k"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.04","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.04000","currency":"USD"},{"qty":10,"price":"$3.63200","currency":"USD"},{"qty":25,"price":"$3.43360","currency":"USD"},{"qty":100,"price":"$2.97590","currency":"USD"},{"qty":250,"price":"$2.82332","currency":"USD"},{"qty":500,"price":"$2.53334","currency":"USD"},{"qty":1000,"price":"$2.13655","currency":"USD"},{"qty":3000,"price":"$1.44673","currency":"USD"},{"qty":6000,"price":"$1.39235","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a78895872f2ed16ed1da2d5a21c7c689.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What audio interfaces does the PCMD3140IRTER support?","answer":"It supports I²C for register control and I²S or TDM for audio data transport, allowing up to four PDM microphone channels to be streamed over a single TDM bus."},{"question":"What is the maximum sampling rate and resolution?","answer":"The device samples from 7.35 kHz up to 768 kHz per channel, with resolution selectable between 16, 20, 24, and 32 bits."},{"question":"Where can I buy the PCMD3140IRTER and how is it quoted?","answer":"The part is sourced to order through independent distribution; availability and pricing are confirmed at the time of RFQ against your required quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/PCMD3140IRTER","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/PCMD3140IRTER when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}