SI3015-BS - 3.3V ISOmodem DAA | Silicon Laboratories
N.º da peça: SI3015-BS ✗ Fim de vidaSI3015-BS Visão geral
An ISOmodem is a modem chipset designed for direct access arrangements used by analog telephone equipment. In the signal chain, it belongs to the modem IC category, provides the telephone-line interface, and supports primary or secondary AC97 codec operation. This places the SI3015-BS between a host audio or data interface and the public switched telephone network, reducing the need for a separate external line interface circuit.
The principal verified features include AC97 2.1 compliance, support for FCC, CTR21, JATE, and other PTT requirements, 84 dB dynamic range across the transmit and receive paths, a 5 V power supply option, and greater than 3000 V isolation. The 16-SOIC package measures 0.154 inch, or 3.90 mm, in width and is supplied in a tube for the SI3015-BS ordering code.
Technically, the SI3015-BS combines modem functionality with a global line-side DAA rather than relying on a discrete telephone interface arrangement. Its 2.4 kbps V.90 format targets legacy data communications rather than broadband modem applications. The listed 3.3 V operating option supports lower-voltage host equipment, while 5 V operation accommodates legacy telecom circuitry. The published 84 dB dynamic range is relevant to voice and low-speed data quality, and the greater than 3000 V isolation rating provides the primary withstand information associated with the line interface.
Typical uses include legacy fax and data terminal equipment, telephone answering devices, remote data terminals, industrial dial-up links, and embedded telephone-line products requiring a direct access arrangement. In these systems, the SI3015-BS can interface with an AC97 codec or compatible host while handling the line-side isolation and telephone-network requirements.
Designers should confirm whether the obsolete lifecycle status and legacy 2.4 kbps data rate match the intended equipment. PCB work also requires review of the external telephone-network components, isolation boundary, analog line interface, and power arrangement because those implementation details are not fully characterized by the available verified excerpts.
This page consolidates verified distributor excerpts, lifecycle information, package details, interface standards, and replacement-screening constraints. It clearly distinguishes documented SI3015-BS characteristics from unavailable electrical values, preventing an obsolete part from being presented with fabricated pin, pricing, or replacement data.
Alternativas drop-in para SI3015-BS — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com SI3015-BS (mesmo formato e footprint) — diferindo em Package, Product Type, Manufacturer, Mounting Type, Interface Category.
SI3015-BSR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
SI3015-KSR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
SI3015-F-FS
✅ Drop-InConsulte o preço
Ver ficha técnica →SI3016-KS
✅ Drop-InConsulte o preço
Ver ficha técnica →SI3016-FS
✅ Drop-InConsulte o preço
Ver ficha técnica →SI3015-BS Especificações
| Product Type | ISOmodem line-side direct access arrangement |
| Supply Voltage Options | 3.3 V and 5 V |
| Data Format | V.90 |
| Baud Rate | 2.4 kbit/s |
| Dynamic Range | 84 dB across TX/RX paths |
| Isolation | Greater than 3000 V |
| Interface Compliance | AC97 2.1 |
| Codec Support | Primary or secondary codec |
| Telephone-Line Compliance | FCC, CTR21, JATE, and other PTT requirements |
| Encapsulamento | 16-SOIC, 0.154 inch (3.90 mm) width |
| Packaging | Tube |
| Tipo de montagem | SMD |
| Status RoHS | Non-Compliant |
| Lead-Free Status | Contains lead |
| Status do ciclo de vida | Obsolete (EOL) |
| Manufacturer | Silicon Laboratories; current distributor listings also identify Skyworks Solutions Inc. |
Guia de Configuração de Pinos do SI3015-BS 16-soic, 0.154 inch (3.90 mm) width
Configuração de pinos para SI3015-BS (pacote 16-soic, 0.154 inch (3.90 mm) width). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para SI3015-BS.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
SI3015-BS é adequado para 6 aplicaçãos: Legacy Fax and Data Terminal Equipment, Telephone Answering Devices, Industrial Dial-Up Monitoring, Embedded Telephone-Line Data Products, Remote Diagnostics and Service Access, Telecom Test and Line-Simulation Equipment.
Legacy Fax and Data Terminal Equipment
The SI3015-BS fits legacy fax and data terminal equipment that still communicates through a 2.4 kbit/s V.90 modem connection and requires the integrated global line-side DAA. According to the verified manufacturer-datasheet excerpts, the device provides 84 dB dynamic range across the transmit and receive paths and supports both 3.3 V and 5 V operation. It can serve as the modem and telephone-line interface in equipment designed around an AC97 codec or compatible host connection. The principal trade-off is lifecycle risk: the part is listed as obsolete, so it is most appropriate for repairing or reproducing proven legacy equipment rather than unqualified new-product development.
Telephone Answering Devices
The SI3015-BS is applicable to telephone answering devices that need a global direct access arrangement rather than a simple analog line interface. According to the verified datasheet excerpts, it supports FCC, CTR21, JATE, and other PTT requirements and provides greater than 3000 V isolation, while its 84 dB transmit and receive dynamic range supports intelligible voice operation. The 16-SOIC format allows the modem and line-side functions to fit into a compact board. Because the SI3015-BS is obsolete, a maintainer should preserve the original schematic and validate every external line-network component rather than assuming that a modern replacement has identical isolation and regulatory behavior.
Industrial Dial-Up Monitoring
The SI3015-BS can support industrial dial-up monitoring equipment designed around legacy 2.4 kbit/s V.90 services. According to the verified specifications, the integrated line-side DAA reduces the need for a separate telephone-interface circuit, while AC97 2.1 primary or secondary codec operation provides a defined path to a host audio or control interface. Operation from 3.3 V or 5 V also accommodates different legacy equipment architectures. The main engineering constraint is that a 2.4 kbit/s modem is no longer a modern general-purpose telemetry solution, so this choice is justified mainly where a public telephone service, existing protocol, and proven board remain in place.
Embedded Telephone-Line Data Products
The SI3015-BS fits embedded telephone-line products whose system architecture already expects an AC97 modem interface and a global line-side DAA. According to the verified manufacturer-datasheet information, the device provides V.90 data handling at 2.4 kbit/s, 3.3 V and 5 V supply options, and greater than 3000 V isolation. Those characteristics can simplify replication of a proven telephone-data terminal without redesigning the external line interface. However, designers must review the obsolete lifecycle status, lead-containing construction, and unavailable detailed electrical limits. A new embedded platform should prefer a supported chipset and complete regulatory revalidation unless compatibility with an installed board is mandatory.
Remote Diagnostics and Service Access
The SI3015-BS is applicable to remote diagnostics and service-access equipment built around a 2.4 kbit/s modem link. According to the verified data, the integrated direct access arrangement provides the telephone-line interface, while AC97 2.1 compatibility supports connection to a host codec and the 84 dB TX/RX dynamic range provides defined voice-path performance. Its 16-SOIC package and tube ordering format are useful when reproducing existing production equipment. The design trade-off is throughput and lifecycle: the obsolete device targets legacy V.90 service rather than broadband remote access, so it should only be used where service compatibility or existing hardware makes the change impractical.
Telecom Test and Line-Simulation Equipment
The SI3015-BS can be incorporated into telecom test equipment designed to exercise legacy analog telephone-line endpoints. According to the verified excerpts, the integrated DAA, AC97 2.1 interface, global telephone-line compliance, and greater than 3000 V isolation provide the core functions associated with a line-side modem arrangement. The 3.3 V and 5 V operating options enable reuse in older and newer host arrangements, and the 84 dB transmit and receive dynamic range is relevant to voice-channel testing. Because the part is obsolete and detailed pin-level data was not available in the supplied excerpts, engineers must follow the original manufacturer documentation and validate the external protection network before energizing a line-connected fixture.
Dados de referência de engenharia para SI3015-BS — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto |
|---|---|
| Package | 16-SOIC (0.154 inch, 3.90 mm width) |
| Brand | Silicon Laboratories |
| Product Type | ISOmodem line-side DAA |
| Operating Supply Voltage | 3.3 V and 5 V |
| Data Format | V.90 |
| Baud Rate | 2.4 kbit/s |
| Dynamic Range | 84 dB across TX/RX paths |
| Isolation | Greater than 3000 V |
| Interface Compliance | AC97 2.1 |
| Lifecycle Status | Obsolete (EOL) |
Notas de projeto
Use the manufacturer pinout and application schematic rather than a generic 16-SOIC drawing when laying out the SI3015-BS. The verified excerpts identify a 16-SOIC package but do not provide the complete pin table, so assigning signals from package position alone could connect the telephone-line, AC97, supply, or ground functions incorrectly. Preserve the original board artwork or validate every net against the exact manufacturer datasheet before fabrication. The exposed relationship between the line interface and the isolation boundary should also be reviewed because it controls component placement and copper-clearance strategy.
Decouple the SI3015-BS according to the manufacturer reference circuit, accounting for the fact that the available records confirm both 3.3 V and 5 V operating options without publishing exact limits. Place required high-frequency bypass capacitors close to the supply and ground pins, and keep the analog modem and telephone-line sections away from noisy digital return paths. The 2.4 kbit/s V.90 format describes modem data capability rather than power consumption, so supply-current and dissipation values must be obtained from the full datasheet before sizing the rail or estimating junction temperature.
Do not treat SI3015-BSR or SI3015-F-FS as automatic drop-in replacements without a complete engineering comparison. The verified cross-reference material identifies SI3015-BSR as an alternative ordering code and describes SI3015-F-FS as a related complete modem chipset, but it does not prove identical package dimensions, pin assignments, AC97 behavior, isolation, and supply requirements. For an existing SI3015-BS board, compare each pin, timing interface, line-network component, firmware expectation, and certification condition before substitution. This is especially important for the obsolete SI3015-BS because a mechanically similar package does not guarantee functional interchangeability.
Respect the isolation boundary associated with the SI3015-BS telephone-line interface. The verified specification states greater than 3000 V isolation, but it does not provide the creepage, clearance, surge-test configuration, or placement geometry required for a production layout. Follow the complete manufacturer application circuit and applicable product safety requirements for barrier components, copper spacing, protective devices, and grounding. A 16-SOIC footprint also has limited routing space, so attempting to reproduce the line interface from incomplete excerpts can compromise isolation and regulatory performance.
Informações de conformidade
The verified DigChip excerpt identifies the SI3015-BS as RoHS Non-Compliant and Contains Lead. No REACH, halogen-free, conflict-minerals, or AEC-Q100 information was supplied.
