SI3215-FT - 90 VPK Programmable SLIC/Codec | Silicon Labs
MPN: SI3215-FT ✓ Hoạt độngSI3215-FT Tóm tắt
A ProSLIC is a highly integrated telephone-interface IC used to connect a voice codec and digital line-control system to an analog subscriber line. Its programmable architecture replaces several discrete functions associated with BORSCHT line supervision, ring generation, battery feed, DTMF generation, and codec operation. This integration reduces external circuitry while allowing line behavior to be adjusted through device software rather than fixed external component networks.
Key features include internal balanced ringing to 90 VPK, dynamically controlled battery voltage, DTMF generation, and software-programmable country-specific signaling. According to the manufacturer datasheet, the Si3215 family supports requirements associated with Japan and China. The integrated DC-DC converter controller continuously minimizes power by producing the battery voltage required for the current operating state from a single positive supply, reducing the need for a large external battery supply.
The SI3215 is intended for single-channel CPE designs where analog telephone access must coexist with a digital voice processor. Its digital interfaces and programmable control allow the host system to manage line state, ring cadence, tone generation, and codec operations. A complete implementation must account for linefeed components, protection paths, ringing-network constraints, thermal margins, and host-specific register configuration.
Typical applications include analog VoIP terminals, customer-premises telephony equipment, digital telephone adapters, voice-over-LAN endpoints, embedded telephony gateways, and legacy telephone-interface designs requiring programmable BORSCHT behavior. The 38-pin TSSOP package is also appropriate where a surface-mount single-channel solution is required but a higher pin-count QFN variant is not necessary.
Designers should use the pin-description and typical application circuits in the manufacturer datasheet when assigning PCB nets and selecting the external line interface network. Validate ringing voltage, loop current, dc feed, thermal performance, and protection behavior in the final telephone equipment because these parameters depend on the line length, country-specific requirements, and external passive network.
This page organizes the principal Si3215 capabilities into an application-focused guide, adds practical implementation considerations, and separates documented functions from parameters that must be confirmed in the complete manufacturer datasheet before a new board is released.
Bộ thay thế dễ dàng lắp đặt cho SI3215-FT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
SI3215-C-FT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
SI3215-BT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →SI3215-FT Thông số kỹ thuật
| Product Type | Programmable CMOS SLIC/codec (ProSLIC) |
| Channel Count | 1 channel |
| Maximum Internal Ringing Voltage | 90 VPK |
| Ringing Load at 4 kft | 5 REN |
| Ringing Load at 8 kft | 3 REN |
| Ring Type | Software-configurable internal balanced ringing |
| Battery Supply | Integrated battery supply with dynamic voltage output |
| DC-DC Converter | Integrated controller with continuous power minimization |
| Telephone Functions | All BORSCHT functions |
| Tone Generation | DTMF generation |
| Signaling Support | Expanded support for Japan and China country requirements |
| Process Technology | CMOS |
| Supply Type | Low-voltage CMOS device |
| Hộp | 38-pin TSSOP |
| Kiểu lắp đặt | Surface mount |
| Primary Application | Customer premise equipment (CPE) |
Hướng dẫn cấu hình chân SI3215-FT 38-pin tssop
Cấu hình chân cho SI3215-FT (38-pin tssop gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho SI3215-FT.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
SI3215-FT phù hợp cho 6 Áp dụngs: Analog VoIP Terminals, Customer Premise Telephony Equipment, Digital Telephone Adapters, Voice-Over-LAN Endpoints, Embedded Telephony Gateways, Programmable Telephone Interfaces.
Analog VoIP Terminals
The SI3215-FT fits a single-line analog VoIP telephone by combining the ProSLIC line interface and voice codec in one device. Its internal balanced ringing generator supports up to 90 VPK and 5 REN at 4 kft, while software-programmable BORSCHT behavior allows ring cadence and line supervision to follow product requirements. The 38-pin TSSOP provides a surface-mount implementation, and the dynamic battery supply reduces the need for a large external battery source. Design the external protection and linefeed network to match the intended line length and regional ringing limits.
Được đề xuất
Customer Premise Telephony Equipment
The SI3215-FT targets customer-premise equipment requiring a programmable analog line interface. Its BORSCHT functions, DTMF generation, ringing generation, and integrated codec reduce the number of dedicated line-interface components needed in a telephone endpoint. Software configuration supports adaptation to different signaling requirements, including the Japan and China capabilities identified for the Si3215 family. The device should be paired with a host processor and an external line network designed for the required loop current, dc feed, surge protection, and isolation.
Được đề xuất
Digital Telephone Adapters
A digital telephone adapter can use the SI3215-FT to bridge digital voice processing and an analog subscriber line. The integrated codec handles voice-path conversion, while the ProSLIC section provides ringing, battery voltage, DTMF, and line-state functions. This consolidation suits compact gateways where analog compatibility must be retained. Host firmware must initialize the device correctly, and the PCB must provide the external dc feed, ringing path, protection devices, and isolation required by the telephone interface specification.
Được đề xuất
Voice-Over-LAN Endpoints
The SI3215-FT is applicable to voice-over-LAN endpoints that must connect legacy analog phones or fax equipment to an IP network. A single ProSLIC provides the analog line termination and codec functions while a network controller handles packetization and call control. Programmable ringing and BORSCHT behavior allow endpoint behavior to be configured by firmware instead of relying on fixed analog networks. Verify line impedance, on-hook and off-hook levels, ring voltage, and regional regulatory requirements for every deployed endpoint configuration.
Được đề xuất
Embedded Telephony Gateways
Embedded gateways that terminate one analog line can use the SI3215-FT to consolidate line-interface and voice-codec functions into a 38-pin TSSOP. The integrated dynamic battery supply derives the required feed voltage from a single positive input, while software-configurable ringing supports programmable ring cadence and load profiles. This can simplify board partitioning in compact gateway products. Nevertheless, the external protection network and PCB isolation remain critical, and the final design must verify thermal performance and continuous line-state operation.
Được đề xuất
Programmable Telephone Interfaces
The SI3215-FT is appropriate for equipment requiring a configurable BORSCHT interface rather than a fixed hardwired line circuit. Software control supports country-specific signaling behaviors, including the Japan and China requirements highlighted in the manufacturer documentation, while DTMF generation and integrated ringing reduce external circuit complexity. The 38-pin TSSOP is useful for compact surface-mount designs, but engineers must complete the pin-assignment and typical-application review in the manufacturer datasheet before layout release.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho SI3215-FT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | SI3215-C-FT | SI3215-BT |
|---|---|---|---|
| Package | 38-TSSOP | 38-TSSOP | 38-TSSOP |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs |
| Product Type | ProSLIC programmable CMOS SLIC/codec | SLIC/codec | ProSLIC SLIC/codec |
| Channel Count | 1 channel | 1 channel | 1 channel |
Bảo phân biệt quan trọng
- Documented single-line integration (vsSI3215-C-FT)
- Complete 90 VPK internal ringing capability (vsSI3215-BT)
- Country-specific programmable signaling (vsSI3215-C-FT)
Ghi chú thiết kế
Use the manufacturer datasheet pin-description table and typical application circuit to assign the line, codec, supply, control, and ground nets before routing. Keep the 38-pin TSSOP footprint compatible with the selected same-package candidate, and preserve the exposed perimeter-board layout recommended for the package. Place decoupling and line-interface components according to the reference circuit rather than estimating their positions from general guidance.
The Si3215 uses a DC-DC converter controller to create the required battery voltage dynamically from a positive input supply. Calculate the converter input and output requirements using the actual line state, load current, and external component values from the manufacturer application circuit. Verify startup, dc feed, and ringing transitions because the converter operating mode changes with programmed linefeed parameters.
Do not treat a shared 38-TSSOP footprint as proof that every SI3215 revision is interchangeable. Compare absolute maximum ratings, recommended operating conditions, register maps, interface behavior, and country-signaling features between SI3215-FT and the candidate revision. Existing host firmware may also require updates when moving between revisions even when the physical PCB remains unchanged.
Protect the line and ringing paths with the surge and overvoltage components specified by the manufacturer. Maintain separation between high-voltage ringing or battery nodes and low-level codec and control circuitry, and follow the reference layout for the external linefeed network. Confirm creepage, clearance, isolation, and regulatory requirements for the intended telephone equipment and deployment region.
Thông tin tuân thủ
The SI3215-FT is a telecommunications interface IC rather than an automotive device, so AEC-Q100 is not applicable. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status require confirmation from current manufacturer or assembly documentation.
