Skyworks Solutions

SI3015-KS - 2.4 kbps V.90 Modem IC | Skyworks Solutions

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16-pin SOIC Package
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SI3015-KS Übersicht

The Skyworks Solutions SI3015-KS is a 2.4 kbps V.90 modem integrated circuit in a 16-pin SOIC package. The verified distributor listing identifies the device as a modem IC with V.90 operation, while available documentation describes the SI3015 family as a V.22BIS ISOMODEM chipset with error correction. These positions place SI3015-KS in the interface-IC hierarchy for legacy data communication and telephone-line modem designs. Its package supports conventional surface-mount PCB assembly while preserving access to the analog and digital interfaces required by a host controller.

A modem integrated circuit is a mixed-signal interface component that converts digital data into line-signal waveforms and reconstructs digital data from received signals. Within the broader category of interface ICs, this function bridges a host processor or data terminal with a communications channel. The V.90 designation identifies the modem standard associated with the listed 2.4 kbps operating class, while V.22BIS documentation provides additional family-level context. Error-correction capability is particularly relevant when a design must recover reliably from line noise or signal impairments.

The SI3015-KS combines an integrated modem function with a compact 16-SOIC footprint. Its primary verified features are the 2.4 kbps modem rate, V.90 listing, 16-pin SOIC package, surface-mount construction, and error-correction support as stated in the indexed datasheet description. The package is suited to industrial and telecommunications equipment that retains V.22bis or V.90-era interfaces. Because this is a legacy interface product, system compatibility, electrical limits, clocking, and interface timing should be confirmed against the original manufacturer documentation before a new PCB is released.

The SI3015-KS belongs to a signal path where analog line-side behavior and digital host-side behavior meet. Designers commonly place it in terminal equipment, data-card hardware, remote-control systems, and embedded telephone-data products. Its 2.4 kbps speed is much slower than modern broadband links, but it remains useful for low-bandwidth, legacy, or cost-constrained systems whose counterpart equipment still supports the same modem standard and physical interface.

A key procurement consideration is lifecycle status. The verified Mouser result states that SI3015-KS is “Not recommended for new designs” and directs users to the Si3018 datasheet. Consequently, the SI3015-KS is most appropriate for repair, continuation, or compatibility work rather than unrestricted greenfield adoption. Existing production programs should verify lifecycle status, availability, and any notice of change before committing a long-term BOM.

This page consolidates verified distributor descriptions, lifecycle guidance, application context, and sourcing information for SI3015-KS. It distinguishes the 16-SOIC V.90 2.4 kbps listing from related SI3015 documentation while avoiding unsupported electrical claims. Engineers should use the datasheet and line-interface circuitry for final timing, pin, protection, and component-selection decisions.

Drop-in-Alternativen für SI3015-KS – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.

Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:

SI3015-KSR

✅ Drop-In
📦 16-pin SOIC
SI3015-KSR is an order-code variant of SI3015-KS with matching SI3015 device identity and 16-SOIC format; the supplied result does not quantify electrical differences

📋 Referenzalternative (nicht im Katalog)

SI3015-KS Technische Daten

Product Type Modem IC
Modem Data Rate 2.4 kbps
Listed Modem Standard V.90
Documented Family Standard V.22BIS
Error Correction Supported
Gehäuse 16-pin SOIC
Package Designation 16-SOIC
Montageart Surface Mount
Manufacturer Skyworks Solutions
Historical Manufacturer Silicon Laboratories
Lifecycle Recommendation Not recommended for new designs
Recommended New-Design Reference Si3018 datasheet
Product Classification Telecom Interface IC
Interface Family ISOMODEM chipset

SI3015-KS Pin-Konfiguration

SOIC-16 Package Pinout Diagram SOIC-16 16-pin, 3.9x9.9mm, P1.27mm, JEDEC MS-012. 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 SOIC-16
Pin 1 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 2 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 3 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 4 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 5 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 6 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 7 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 8 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 9 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 10 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 11 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 12 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 13 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 14 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 15 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.
Pin 16 [DATA_NEEDED: pin name] — Pin assignment must be verified against the manufacturer datasheet.

Typische Anwendungen

SI3015-KS ist geeignet für 7 Anwendungs: Legacy Telephone-Line Terminal Equipment, Industrial Remote Terminal, Data-Card Retrofit and Repair, Embedded Telemetry Gateway, Legacy Network Extender, Vintage Communication Controller, Point-of-Sale Terminal.

🌐

Legacy Telephone-Line Terminal Equipment

The SI3015-KS fits legacy telephone-line terminals that require a low-speed modem interface rather than broadband connectivity. Its verified 2.4 kbps listed rate and V.22BIS family description support point-to-point data communication over a narrowband line, while the indexed error-correction feature helps recover transmitted data after line impairments. The 16-SOIC package fits conventional surface-mount assembly, but the exact line-interface circuitry and timing should follow the original datasheet and reference schematic.

🏭

Industrial Remote Terminal

SI3015-KS is appropriate for an industrial remote terminal that communicates over a legacy telephone or modem network and still depends on the established SI3015 interface. Its 2.4 kbps class is sufficient for supervisory data, configuration exchange, and status reporting rather than high-volume transfers. The 16-SOIC package avoids a through-hole footprint, but engineers should confirm isolation, surge protection, grounding, and environmental requirements for the installation environment.

🔧

Data-Card Retrofit and Repair

The SI3015-KS supports repair and continuation of legacy data-card hardware built around the SI3015 interface family. Its verified package is 16-SOIC, enabling a like-for-like board-level replacement strategy when the original circuit, signal levels, and software protocol remain unchanged. Because Mouser marks the device not recommended for new designs, use it where field compatibility is more important than a current product roadmap, and verify every mechanical and electrical match before procurement.

📡

Embedded Telemetry Gateway

SI3015-KS can serve as the legacy modem element in an embedded telemetry gateway that must send control or monitoring information over a narrowband line. The 2.4 kbps listed modem rate is practical for low-frequency telemetry, and error correction improves the reliability of data received over impaired links. The 16-SOIC package supports automated board assembly, while the host processor and communications isolation must be selected separately according to system architecture.

🖥️

Legacy Network Extender

A network extender that bridges older terminal equipment to a modem-based line can use SI3015-KS when interoperability with the established modem chipset is required. The V.22BIS family documentation and error-correction capability distinguish it from a generic UART transceiver and make it relevant to line-signaling designs. The verified 16-SOIC package supports compact implementation, although line-side protection and connector circuitry are not specified in the supplied data.

🗄️

Vintage Communication Controller

SI3015-KS is suitable for a vintage communication controller that still expects the original modem chipset electrical and software behavior. The indexed error correction supports dependable recovery on a degraded line, and the listed 2.4 kbps rate aligns with low-bandwidth command or maintenance channels. Because the product is not recommended for new designs, the strongest use case is sustaining installed equipment or replicating an established design rather than creating a new platform.

🏬

Point-of-Sale Terminal

The SI3015-KS can support a legacy point-of-sale terminal that transmits transaction data through an older modem path. Its 2.4 kbps class is suitable for concise payloads and its error-correction feature can assist with line quality. The 16-SOIC package allows integration into a compact surface-mount design. However, current payment systems normally favor supported connectivity, so this application is best treated as an established-system continuation rather than a default choice for new retail equipment.

What is the SI3015-KS modem data rate?
The SI3015-KS is listed by DigiKey as a 2.4 kbps V.90 modem IC in a 16-pin SOIC package. The verified product listing also identifies it as an interface modem from Skyworks Solutions. This rate is appropriate for legacy telephone-line data links rather than broadband or modern high-speed data communication.
What type of component is the Skyworks Solutions SI3015-KS?
The SI3015-KS is a modem interface IC housed in a 16-SOIC surface-mount package. The verified DigiKey listing describes it as a 2.4 kbps V.90 modem, while indexed Silicon Laboratories documentation identifies the SI3015 family as a V.22BIS ISOMODEM chipset with error correction.
Where can I find the SI3015-KS datasheet PDF and pin information?
The available datasheet index points to the Silicon Laboratories SI3015-KS documentation and describes a V.22BIS ISOMODEM chipset with error correction. It also provides pinout and package information for the 16-pin device. Use the indexed PDF link for the source document and verify revision status before releasing a new layout.
Is the SI3015-KS still recommended for new designs?
The SI3015-KS is not recommended for new designs, according to the verified Mouser listing, which directs designers to the Si3018 datasheet. The part remains relevant for repair, continued production, and systems that must interoperate with existing SI3015-based equipment. New designs should assess the recommended Si3018 path.
What is the SI3015-KS package?
The SI3015-KS is supplied in a 16-pin SOIC surface-mount package. DigiKey’s verified listing calls it 16-SOIC, and an additional product result identifies the package as 16SOIC. The correct package SVG key is therefore soic-16, corresponding to a 16-pin surface-mount footprint.
Does the SI3015-KS support error correction?
Yes, the indexed SI3015-KS datasheet description identifies the device as a V.22BIS ISOMODEM chipset with error correction. That family-level feature supports reliable recovery of transmitted data over impaired communications lines. The exact protocol behavior and channel performance should be verified in the original datasheet.
Where can I buy the SI3015-KS online?
The verified DigiKey product page for SI3015-KS lists the part for purchase and states that it ships today, while Mouser also provides an inventory and pricing page. XAIPART pricing is unavailable from the supplied data, so the tier fields use 0.00 placeholders and should not be interpreted as free stock. Contact the listed distributors for current quantities and traceable sourcing.
What is the price of the SI3015-KS?
The supplied distributor results provide product pages but no numeric price, so the SI3015-KS price is not verifiable from the provided data as of 2026-10-23. DigiKey, Mouser, and other listed suppliers offer live inventory and quote channels. Obtain a current quotation before budgeting the part, especially for production quantities.
What is the lead time for the SI3015-KS?
No numeric lead time is stated in the verified SI3015-KS listings as of 2026-10-23. DigiKey says “ships today,” but that statement does not define a guaranteed quantity or a universal lead time. Confirm current stock and lead time with the distributor for the required order quantity and production schedule.
Is the SI3015-KS in stock?
The verified DigiKey result states “Buy now, ships today,” which indicates listing availability at the time of retrieval on 2026-10-23. It does not establish a guaranteed stock quantity, and Mouser separately labels the part not recommended for new designs. Request a current quote and inventory confirmation before ordering.
What can replace the SI3015-KS?
The verified Mouser listing identifies the Si3018 as the recommended reference for a new design, but it does not establish the Si3018 as a pin-for-pin SI3015-KS drop-in replacement. The supplied cross-reference results likewise contain no qualified five-part set. Any substitution must therefore be checked against pinout, protocol, clocking, line interface, supply, and timing.
Is the Si3018 the same as the SI3015-KS?
The Si3018 and SI3015-KS are not established as the same part by the supplied data. Mouser recommends consulting the Si3018 datasheet because SI3015-KS is not recommended for new designs. The Si3018 may provide a newer design path, but pin compatibility and functional equivalence require direct comparison with the original documentation.
What is the best drop-in replacement for the SI3015-KS?
No defensible drop-in replacement can be named from the provided SI3015-KS cross-reference data. The search results contain generic cross-reference tools, the SI3015-KSR tape-and-reel order code, and a Si3018 recommendation, but they do not verify five distinct pin-compatible alternatives with quantified parameters. Use the manufacturer’s successor guidance and perform a full interface review.
SI3015-KS versus Si3018: which is better for a new modem design?
The Si3018 is the better candidate for a new design because the verified Mouser listing explicitly says SI3015-KS is not recommended for new designs and points to the Si3018 datasheet. A direct feature comparison cannot be completed from the supplied data, so verify protocol compatibility, package, electrical limits, line interface, certification, and software support.
When should I choose the SI3015-KS over a newer modem IC?
Choose SI3015-KS when maintaining an existing 16-SOIC design that already uses its V.22BIS or listed V.90 modem behavior and where redesign risk is unacceptable. Do not choose it solely for a new product because Mouser marks it not recommended for new designs. For greenfield work, evaluate the Si3018 or another currently supported modem.
Is the SI3015-KS suitable for telephone-line data communication equipment?
The SI3015-KS is suitable for legacy telephone-line modem equipment because its verified descriptions identify a 2.4 kbps modem, V.22BIS family operation, and error correction. Its 16-SOIC package supports surface-mount assembly. Confirm line-interface electrical characteristics, regional approvals, and end-system interoperability before deployment.
What are the key specifications of SI3015-KS that engineers should know?
The verified SI3015-KS data identifies a modem interface IC with a 2.4 kbps listed rate, V.90 designation, documented V.22BIS family operation, error correction, and a 16-pin SOIC package. Mouser states that it is not recommended for new designs and refers users to the Si3018 datasheet. Other electrical and timing details remain data-needed.
Does the SI3015-KS require line-side protection components?
The supplied data does not specify external protection values, so the exact network protection circuit cannot be prescribed. Because the SI3015-KS is a modem interface IC, an implementation must account for the line-side connection and its applicable interface requirements. Consult the original schematic and datasheet rather than relying on generic protection values.

Technische Referenzdaten für SI3015-KS – Vergleich, Designhinweise und Compliance-Informationen.

Auswahlhilfe

Choose the SI3015-KS when repairing or continuing a proven 16-SOIC modem design where compatibility with established V.22BIS-family behavior and error correction is essential. Its verified listing identifies a 2.4 kbps V.90 modem, making it suitable for legacy low-speed telephone-line links rather than modern broadband equipment. For a new design, the Si3018 is the more appropriate starting point because Mouser explicitly marks SI3015-KS as not recommended for new designs. SI3015-KSR is the only qualified same-footprint candidate found in the supplied cross-reference data, but it appears to be an order-code variant rather than a meaningfully different second source. Before ordering either part, verify the complete pinout, supply limits, clocking, line interface, timing, and lifecycle notices against the exact manufacturer documentation.

Vergleich mit Alternativen

Parameter Dieses Produkt SI3015-KSR
Package 16-pin SOIC 16-pin SOIC
Brand Skyworks Solutions Silicon Laboratories
Product Type Modem IC Modem IC
Listed Data Rate 2.4 kbps 2.4 kbps
Listed Modem Standard V.90 V.90
Documented Family Standard V.22BIS V.22BIS
Error Correction Supported Supported
Mounting Type Surface Mount Surface Mount

Wichtigste Unterscheidungsmerkmale

  • Documented error-correction support (vs. SI3015-KSR)
  • Current distributor brand association (vs. SI3015-KSR)
  • Explicit lifecycle guidance (vs. SI3015-KSR)

Designhinweise

Do not treat a similar SI3015 order code as proof of interchangeability. The supplied search results identify SI3015-KSR, but they do not provide a complete pin table, electrical limits, or package drawing. Before substituting, compare every pin, supply requirement, clock connection, line-side signal, host-side interface, and timing parameter against the exact SI3015-KS datasheet revision used by the equipment being serviced.

The supplied verified data does not state the SI3015-KS supply voltage, current consumption, or decoupling requirements. Do not infer them from the modem standard or the 16-SOIC package. Use the original datasheet for recommended input capacitance, voltage tolerance, and power sequencing, and validate the regulator’s headroom and noise performance against the analog and digital sections of the modem circuit.

A modem interface combines sensitive analog signaling with digital control, so the original reference layout should be followed closely. Keep line-side and host-side return paths controlled, place decoupling close to the relevant supply pins, and preserve the manufacturer-recommended grounding topology. The supplied material does not expose trace-spacing or grounding values, so those details must be obtained from the full datasheet and reference schematic rather than guessed.

Mouser explicitly marks SI3015-KS as not recommended for new designs and refers to the Si3018 datasheet. Treat a Si3018 as a potential successor path, not automatically as a drop-in replacement. Verify protocol interoperability, line-interface topology, package dimensions, pin mapping, clock requirements, host interface, regulatory obligations, and legacy software support before transferring a production design.

Compliance-Informationen

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Bleifrei
Unknown
Halogenfrei
Unknown
Konfliktmineralien
Unknown

No verified environmental or substance-compliance statements were supplied. AEC-Q100 is not applicable because SI3015-KS is a modem interface IC rather than an automotive-qualified component.

Ähnliche Suchanfragen

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Verwandte Bauteile & Begriffe

Skyworks Solutions Silicon Laboratories SI3015-KS SI3015-KSR Si3018 modem IC V.90 V.22BIS ISOMODEM chipset error correction 2.4 kbps telephone-line modem interface IC mixed-signal IC 16-pin SOIC SOIC family surface-mount package SMD data terminal equipment legacy data communication RS-232 RS-485 RoHS REACH
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