SI3200-FS Dual-Channel SLIC Linefeed IC | Skyworks
MPN： SI3200-FS ✗ 停產SI3200-FS 概覽
A SLIC, or Subscriber Line Interface Circuit, is an analog interface integrated circuit that connects a telephone line to a digital voice codec or channel processor. It forms part of the wider telecom interface hierarchy: SLIC -> linefeed interface -> customer premise equipment interface -> telecom equipment. The SI3200-FS is designed for low-voltage digital control systems that require a dedicated line-interface function rather than a general-purpose signal amplifier or power-management device.
The SI3200-FS provides two linefeed circuits and supports interface arrangements identified in the product documentation as GCI, PCM, and SPI. It operates from 3.3 V or 5 V, has a quoted supply current of 110 uA, and is specified for an operating temperature range of -40 °C to +85 °C. The listed power dissipation is 941 mW. Its 16-pin SOIC package supports conventional surface-mount assembly and is marked as lead-free in distributor product information.
Typical telecom uses include analog telephone adapters, voice-over-IP terminals, digital loopback equipment, customer access units, and other CPE products that connect a digital voice processor to one or two analog telephone lines. Because the IC handles the linefeed portion of the signal path, the surrounding design must account for line protection, ring-voltage requirements, isolation or surge handling, impedance matching, and proper separation between the telephone line and low-voltage logic.
The SI3200-FS is used where a dual-channel interface, low-voltage digital control, and established 16-pin SOIC implementation are priorities. Designers should confirm the exact linefeed ratings, external component requirements, control timing, and board-level protection against the manufacturer datasheet for the selected source and revision.
For sourcing and design review, this page combines the manufacturer-identified electrical characteristics, package information, telecom-interface application context, comparison points, and practical implementation guidance. Request a Quote on this page for current commercial availability, packaging options, and lead-time confirmation.
直接替換替代品，適用於 SI3200-FS — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
SI3200-G-FS
✅ 直接替換📋 參考替代品（不在目錄中）
SI3200-X-FS
✅ 直接替換📋 參考替代品（不在目錄中）
SI3200-G-GS
✅ 直接替換📋 參考替代品（不在目錄中）
SI3200-G-GSR
✅ 直接替換📋 參考替代品（不在目錄中）
SI3200-FS 規格
| Product Type | Subscriber Line Interface Concept (SLIC) linefeed interface IC |
| Number of Circuits | 2 |
| 介面 | GCI, PCM, SPI |
| 供應電壓 | 3.3 V, 5 V |
| 供應電流 | 110 uA |
| Power Dissipation | 941 mW |
| 工作溫度 | -40 °C to +85 °C |
| 封裝 | 16-pin SOIC |
| 安裝類型 | Surface Mount |
| Lead-Free Status | Lead-free |
| Application Category | Telecom Interface IC |
| Linefeed Architecture | Dual-channel SLIC |
| BORSCHT Functions | Per manufacturer datasheet listing |
| Maximum Line Length | Up to 18 kft per manufacturer listing |
| Internal Balanced Ringing | 65 Vrms per manufacturer listing |
| External Bulk Ringer Support | Supported per manufacturer listing |
| Standby Power | Low standby power per manufacturer listing |
SI3200-FS 16-pin soic 腳位配置指南
SI3200-FS（16-pin soic 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： SI3200-FS.
請參閱 資料表 以查看完整腳位配置。
典型應用
SI3200-FS 適用於 6 應用s: Analog Telephone Adapter, Voice-over-IP Terminal, Customer Access Unit, Digital Loopback Tester, Small Business PBX, Embedded Voice Gateway.
Analog Telephone Adapter
The SI3200-FS fits an analog telephone adapter that converts a digital voice stream into a two-channel analog line interface. Its two linefeed circuits support applications up to 18 kft, while 3.3 V or 5 V operation allows interface with the adapter’s digital control platform. According to the manufacturer datasheet listing, the device performs the required BORSCHT functions and includes low standby power. The implementation must add the approved line protection network and validate ringing voltage, DC feed, impedance, and off-hook behavior against the target network.
推薦
Voice-over-IP Terminal
The SI3200-FS provides the two-channel analog telephone-line side of a Voice-over-IP terminal while digital audio and control remain on the codec side. Its GCI, PCM, and SPI interface options allow the linefeed IC to be paired with different voice processors, and the quoted 110 uA supply current supports low-power portable and desktop designs. The board should provide controlled digital grounding, robust line surge protection, and the external components required by the selected ringing and DC-feed implementation.
推薦
Customer Access Unit
A customer access unit can use the SI3200-FS as its dual-channel subscriber-line interface, with each channel connecting toward a copper analog line and the digital side communicating with a channel processor. The part’s -40 °C to +85 °C operating range is suitable for industrial temperature coverage, while the 16-pin SOIC supports automated surface-mount assembly. Designers should confirm line-feed limits, ring cadence, loop current, and protection components against the access-unit specification rather than relying only on the family description.
推薦
Digital Loopback Tester
The SI3200-FS can support a digital loopback or line-interface test fixture because it provides two programmable linefeed channels and supports GCI, PCM, and SPI control. A test system can exercise line-state transitions, DC feed, and ringing behavior through the same interface used in production equipment. The 3.3 V or 5 V supply flexibility simplifies test-fixture design across different control platforms. Use controlled line equivalents and protection networks so the test board does not expose the interface to uncontrolled telephone-line surges.
推薦
Small Business PBX
The SI3200-FS can serve each two-line station interface in a small-business PBX or other multi-extension voice system. Two linefeed circuits per IC allow a compact arrangement of analog extensions while preserving separate digital control for each channel. Its low standby-power characteristic is useful in office equipment expected to remain connected continuously. The system designer must budget board area for protection, ring-signal components, and isolation-related components, and must verify the IC’s exact linefeed ratings for the intended analog line length.
推薦
Embedded Voice Gateway
An embedded voice gateway can pair the SI3200-FS with a network processor when it must expose one or two analog telephone lines alongside packet-based services. The SLIC’s support for PCM and SPI-oriented control allows the analog channel to be managed digitally, while 3.3 V operation can simplify integration with a modern processor platform. The implementation should use a controlled ground and power layout because line transients and ringing circuitry can disturb sensitive digital signals. Validate startup, shutdown, and line-state behavior under the gateway’s full firmware configuration.
推薦
推薦產品摘要
工程參考資料，適用於 SI3200-FS — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | SI3200-G-FS | SI3200-X-FS | SI3200-G-GS | SI3200-G-GSR |
|---|---|---|---|---|---|
| Package | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC |
| Brand | Skyworks Solutions | Silicon Laboratories | Silicon Laboratories | Silicon Laboratories | Silicon Laboratories |
| Product Category | Telecom Interface IC / Subscriber Line Interface Concept | SI3200-family telecom interface IC | SI3200-X-FS SLIC | SI3200-family telecom interface IC | SI3200-family telecom interface IC |
主要差異化特點
- Exact 16-pin SOIC dual-channel SLIC configuration (對比SI3200-G-GSR)
- Wide logical supply compatibility (對比SI3200-G-GSR)
- Documented long-line and ringing capability (對比SI3200-G-GS)
- Multi-protocol control listed for the target suffix (對比SI3200-G-FS)
設計說明
Separate the low-level digital control section from the telephone-line analog section as far as the board outline permits. Keep the SLIC, line-protection components, and ringing-related parts grouped by channel, while routing digital control away from high-energy line nodes. Use a continuous ground reference where appropriate and return line-driver currents through controlled paths so switching and line transients do not inject noise into the voice channel.
Do not treat the package appearance or the SI3200 family name as proof of electrical equivalence. Before replacing SI3200-FS with SI3200-G-FS, SI3200-X-FS, SI3200-G-GS, or SI3200-G-GSR, compare pin names, supply limits, line length, ringing voltage, interface protocol, and control configuration. The comparison listing indicates different maximum supply-voltage descriptions for some suffixes, making a complete datasheet review essential before design reuse.
The SI3200-FS supports 3.3 V or 5 V operation, but the supply network must also serve the external line-interface and ringing circuitry. Use local decoupling close to the IC pins and keep high-current switching paths away from sensitive analog returns. Review the quoted 110 uA supply current and 941 mW power dissipation against the intended operating mode, because the headline values alone do not define every internal condition or external-load contribution.
Telephone-line transients can exceed the normal operating ratings of the linefeed circuit. Use the protection, surge, and ringing network specified by the manufacturer’s reference design, and verify that the selected SI3200-FS configuration supports the required 18 kft application and 65 Vrms balanced ringing. Validate the assembled board for off-hook, on-hook, ring-voltage, DC-feed, and line-state transitions rather than checking only static supply rails.
合規資訊
The distributor product information identifies SI3200-FS as lead-free. RoHS, REACH, halogen-free, and conflict-minerals status are not explicitly established by the available product data.