SI3018-GS - 16-SOIC Telecom DAA Interface IC | Silicon Labs
料号： SI3018-GS ✗ 停产SI3018-GS 概述
A Direct Access Arrangement interface IC is the line-facing member of a subscriber-line or modem interface. It connects a communications system to an analog telephone line while supporting the signaling, isolation, and termination functions required by that line. The verified information identifies SI3018-GS as a 16-SOIC telecom interface and specifically associates it with the SI2493 ISOmodem line-side device, making it appropriate for legacy and established telephone-interface platforms rather than unrelated general-purpose interface products.
The SI3018-GS provides 16 terminations and uses a 16-SOIC package. The verified sourcing results specifically describe it as a lead-free telecom interface IC and classify it as a Direct Access Arrangement device. These package and termination details are the principal verified features for comparing it with other line-side interface components. Its principal advantage is integration into a dedicated telecom interface role rather than requiring a collection of unrelated line-interface functions.
Functionally, the SI3018-GS is associated with the SI2493 ISOmodem line-side architecture. The available manufacturer-family material identifies the SI3056 family as providing four AC termination impedances for SI3018 line-side devices and sixteen AC termination impedances for SI3019 line-side devices. This context establishes SI3018 as the lower-termination-count member of the referenced line-side family, while detailed operating conditions remain available through the linked Silicon Labs family document.
Typical applications include analog telephone-line interfaces, customer-premises equipment, modem line-side designs, and telecom interface cards. In each case, the device is positioned on the line side of the communications architecture rather than directly beside a general-purpose digital processor. System designers must still verify line impedance, isolation, protection, ringing, and regulatory requirements against the applicable Silicon Labs documentation before releasing a production design.
The principal design consideration is to use the exact SI3018-GS data sheet and pin configuration during schematic capture and PCB layout. Because the verified material confirms the 16-SOIC package but does not expose a complete numbered pin table, engineers should not infer pin assignments from generic DAA devices or from the SI3018-F-GS listing. Component sourcing and inventory status should also be checked before committing to a high-volume build.
This product page combines the verified package classification, telecom-interface role, termination count, family relationships, distributor sources, and available drop-in references with practical selection guidance. It also distinguishes verified SI3018-GS information from unverified parameters that require confirmation from the manufacturer data sheet before design-in.
直接替换替代料： SI3018-GS ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： SI3018-GS （相同外形与封装尺寸） ——差异在于 Manufacturer, Mounting Type, Product Type.
SI3018-F-GS
✅ 直接替换📋 参考替代料（不在目录中）
SI3018-F-GSR
✅ 直接替换📋 参考替代料（不在目录中）
SI3018-GS 规格参数
| Product Type | Telecom Direct Access Arrangement (DAA) interface IC |
| Device Association | SI2493 ISOmodem line-side device |
| 封装 | 16-pin SOIC |
| Package Family | SOIC-16 surface-mount family |
| Termination Count | 16 terminations |
| AC Termination Impedance Count | 4 impedances in the referenced SI3018 line-side family |
| 安装类型 | Surface mount |
| Lead Status | Lead-free |
| Product Category | Telecom interface IC |
| 接口类型 | Direct Access Arrangement (DAA) |
| Application Domain | Telephone-line and modem line-side interface equipment |
| Manufacturer | Silicon Labs |
SI3018-GS soic-16 surface-mount family 引脚配置指南
SI3018-GS（soic-16 surface-mount family 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： SI3018-GS.
请参阅 数据手册 以查看完整引脚配置。
典型应用
SI3018-GS 适用于 6 应用s: Analog Telephone-Line Interface, Customer Premises Equipment, Modem Line-Side Card, Legacy Voice Gateway, Telecom Interface Test Equipment, Industrial Telephone Control Panel.
Analog Telephone-Line Interface
The Silicon Labs SI3018-GS fits an analog telephone-line interface because it is identified as a Direct Access Arrangement interface IC associated with the SI2493 ISOmodem line-side device. Its 16-pin SOIC package fits established line-card and subscriber-interface layouts, while the verified 16-termination listing provides a useful starting point for network-component selection. The engineer should confirm the exact impedance configuration, ringing behavior, isolation requirements, and country-specific line interface against the SI3018-GS data sheet before production.
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Customer Premises Equipment
The SI3018-GS is applicable to customer-premises equipment that terminates an analog telephone line and connects it to modem or voice-processing circuitry. Its dedicated telecom DAA role is more appropriate than using a general-purpose interface IC for this task. The verified 16-SOIC package supports compact board integration, but the product's suitability depends on line impedance, surge exposure, isolation, and regulatory requirements. Those requirements must be validated with the exact manufacturer documentation and local network rules.
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Modem Line-Side Card
SI3018-GS is explicitly associated with the SI2493 ISOmodem line-side device, making it a logical candidate for a modem line-side card or legacy data-access platform. The verified 16-pin SOIC construction allows reuse of an existing footprint when the exact pin assignments are confirmed. The related family material identifies four AC termination impedances for the SI3018 line-side device, but engineers should not assume the meaning of the 16-termination listing without checking the exact data sheet and termination table.
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Legacy Voice Gateway
A legacy voice gateway can use the SI3018-GS where an established analog line interface is required rather than a purely digital audio interface. The device's DAA classification provides a direct path from telephone-line circuitry into the surrounding modem or voice system. The verified package is 16-SOIC, but the supplied information does not establish ringing voltage, codec integration, line-feed control, or thermal limits. Those details must be checked before adapting the part to a new gateway design.
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Telecom Interface Test Equipment
SI3018-GS may be used in telecom interface test equipment that reproduces a line-side DAA function around a channel simulator, analyzer, or protocol test platform. The dedicated interface role helps separate analog line conditioning from the measurement or processing circuitry. Its 16-SOIC package is convenient for reusable hardware, while the manufacturer-family reference supplies useful context for the number of AC termination impedances. Exact test limits and supported line parameters remain to be established from the SI3018-GS data sheet.
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Industrial Telephone Control Panel
The SI3018-GS can serve in an industrial telephone control panel when the system must communicate over an analog subscriber line. Integrating a dedicated DAA interface reduces the amount of line-facing circuitry that must be handled elsewhere in the controller. Nevertheless, industrial exposure adds requirements for surge protection, isolation, temperature range, and long-term reliability that were not quantified in the verified data. Those conditions must be verified before using the device outside a controlled telecom environment.
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推荐产品汇总
工程参考数据： SI3018-GS ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | SI3018-F-GS | SI3018-F-GSR |
|---|---|---|---|
| Package | SOIC-16 | SOIC-16 - same package class | SOIC-16 - same package class |
| Brand | Silicon Labs | Silicon Labs | Skyworks Solutions Inc. |
| Product Type | Telecom Direct Access Arrangement interface IC | SI3018-family line-side telecom interface | Telecom Direct Access Arrangement interface IC |
| Associated Line-Side Device | SI2493 ISOmodem line-side device | SI3018 family | SI3018 family |
关键差异点
- Exact target MPN and documented manufacturer identity （对比 SI3018-F-GS)
- Explicit SI2493 ISOmodem line-side association （对比 SI3018-F-GSR)
- Verified 16-termination product description （对比 SI3018-F-GSR)
设计说明
Do not substitute SI3018-GS based only on its SOIC-16 package and DAA classification. The verified material does not expose the exact numbered pin table or explain every suffix difference. Before replacing any installed part, compare power pins, ground connections, termination-control pins, isolation provisions, and no-connect positions against the manufacturer documents for both MPNs. A mechanically similar package can still require component changes or board-level rework.
Treat the analog line-side section as a high-impedance, high-surge environment. Place the SI3018-GS, its required termination components, protection devices, and isolation network according to the exact manufacturer reference layout. Keep switching-regulator loops, digital clocks, and high-current return paths away from line-side nodes. Do not infer trace spacing or grounding topology from the distributor snippets; use the applicable national and carrier line-interface requirements for final creepage, clearance, and surge design.
The supplied data does not specify input voltage, current consumption, quiescent current, or power dissipation, so rail sizing cannot be completed from this page. Verify the electrical maximum ratings and recommended operating conditions in the exact SI3018-GS data sheet. Confirm that every supply rail has adequate startup margin, decoupled routing, and fault behavior for the intended telecom application. If a replacement candidate is evaluated, compare its supply and power-consumption limits before considering pin compatibility.
Do not use the LCSC price of $2.5422 for SI3018-F-GS as the price of SI3018-GS; the verified snippet explicitly names a different MPN. The supplied SI3018-GS results confirm sourcing channels but omit target-part prices and dated stock. Request an authorized-distributor quotation as of the purchasing date, and confirm lead time, traceability, date code, and lifecycle status before allocating the component to a production schedule.
合规信息
The verified Mouser snippet identifies SI3018-GS as lead-free. RoHS, REACH, halogen-free, and conflict-minerals declarations were not included in the supplied data. AEC-Q100 is not applicable because SI3018-GS is a telecom interface IC rather than an automotive-qualified device.