SI2404-D-FS 56kbps ISOmodem IC | Skyworks | 16-SOIC
MPN: SI2404-D-FS ✓ Hoạt độngSI2404-D-FS Tóm tắt
An ISOmodem is a modem controller integrated circuit designed for data communication over telephone, analog, or other limited-bandwidth connections. It combines modulation, data handling, call-control signaling, and line-interface functions into a compact device. A system-side ISOmodem normally works with a line-side counterpart, allowing the two devices to divide the functions required for a complete analog data modem connection.
The SI2404-D-FS supports the principal V-series and Bell modem formats identified in the manufacturer documentation, including V.21, V.22, V.23, V.29, Bell 103, and Bell 212A. Related family documentation also identifies V.44, V.42, V.42bis, MNP2-5, automatic rate negotiation, Fast Connect, and Type I and Type II caller-ID decoding. These capabilities make the family applicable to legacy data equipment, embedded communication modules, fax systems, and industrial interfaces requiring standards-compatible modem signaling.
As a 2.4 kbps system-side modem IC, the SI2404-D-FS emphasizes compact implementation and compatibility with established modem protocols. Its 16-pin SOIC package provides a small surface-mount footprint, while the protocol mix allows operation with older terminals, fax machines, remote-management equipment, and telephone-network interfaces. The maximum 56,000 bps family capability depends on the selected line-side companion and does not mean that every operating mode of the SI2404-D-FS itself runs at that rate.
Typical implementations include embedded analog modems, fax-modem modules, industrial remote terminals, point-of-sale equipment, telecommunications test equipment, and legacy data-collection systems. In each application, the correct line-side IC, isolation boundary, analog termination, and network interface must be selected together because the SI2404-D-FS represents the system-side portion of the modem chipset.
When laying out the PCB, place the SI2404-D-FS close to the companion modem and analog-network interface components. Follow the manufacturer pin-description table for supply, ground, clock, control, and analog connections, and preserve the specified decoupling arrangement. Component population and timing values should be selected from the SI2404 family documentation rather than estimated from unrelated modem designs.
This page combines protocol identification, package and rate details, drop-in comparison guidance, and practical integration notes to accelerate component selection. Review the complete SI2404 family datasheet and your system-level modem requirements before releasing a production design.
Bộ thay thế dễ dàng lắp đặt cho SI2404-D-FS — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với SI2404-D-FS (cùng hình factor và footprint) — khác nhau ở Package, Product Type.
SI2404-D-FSR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
SI2401-FSR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →SI2404-D-FS Thông số kỹ thuật
| Product Type | System-side ISOmodem data communications IC |
| Manufacturer | Skyworks Solutions |
| Base Data Rate | 2,400 bps |
| Maximum Family Data Rate | 56,000 bps with the appropriate line-side companion device |
| Supported Modem Formats | V.21, V.22, V.23, V.29, Bell 103, Bell 212A |
| Related Family Modem Formats | ITU-T and Bell formats, V.44, V.42, V.42bis, MNP2-5 |
| Rate Negotiation | Automatic rate negotiation |
| Fast Connect | Supported by the SI2404/34/15/04 family documentation |
| Caller ID | Type I and Type II decode |
| Hộp | 16-pin SOIC |
| Kiểu lắp đặt | Surface mount |
| Product Category | Network controller and processor IC / ISOModem |
Hướng dẫn cấu hình chân SI2404-D-FS 16-pin soic
Cấu hình chân cho SI2404-D-FS (16-pin soic 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 SI2404-D-FS.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
SI2404-D-FS phù hợp cho 6 Áp dụngs: Legacy Analog Data Modems, Industrial Remote Terminals, Fax and Multifunction Terminals, Point-of-Sale Communications, Telecommunications Test Equipment, Legacy Data Collection Systems.
Legacy Analog Data Modems
The SI2404-D-FS fits system-side modem designs that require established V.21, V.22, V.23, V.29, Bell 103, or Bell 212A operation. Its 2,400 bps base rate and 16-pin SOIC package support compact implementations built around the SI2404 chipset. The system can use the related family capabilities of automatic rate negotiation, Fast Connect, and caller-ID decoding when required, although the selected line-side companion determines the highest available operating rate.
Được đề xuất
Industrial Remote Terminals
Industrial terminals that communicate through older telephone-network services can use the SI2404-D-FS for standardized modem signaling. The device provides 2,400 bps operation across several V-series and Bell formats in a surface-mount 16-pin SOIC. A complete industrial design must add the appropriate line-side companion, analog termination, isolation, surge protection, and product-specific environmental controls. The modem IC supports interoperability but does not provide the complete protection network.
Được đề xuất
Fax and Multifunction Terminals
The SI2404-D-FS is appropriate for legacy fax and multifunction-terminal interfaces that require Bell and ITU modem compatibility. Support for V.21, V.22, V.23, V.29, Bell 103, and Bell 212A gives designers a defined protocol set for older equipment. Its 16-pin SOIC footprint helps reduce board area, while the separate system-side and line-side architecture allows each modem function to be integrated according to the product's line-interface requirements.
Được đề xuất
Point-of-Sale Communications
Point-of-sale terminals that must connect with established terminal equipment can use the SI2404-D-FS for 2,400 bps modem operation. The supported V.21, V.22, V.23, V.29, Bell 103, and Bell 212A formats provide compatibility options for legacy communication infrastructure. The 16-pin SOIC package supports surface-mount assembly, but the complete board still requires the matching line-side device, network coupling components, and a controlled power-supply design.
Được đề xuất
Telecommunications Test Equipment
The SI2404-D-FS can support test equipment that emulates or communicates with established modem standards. Its 2,400 bps operating class and support for both V-series and Bell formats make it suitable for interoperability, line-interface, and signaling investigations. The related family documentation also identifies automatic rate negotiation, Fast Connect, and Type I and Type II caller-ID decoding, which can be valuable in protocol and equipment test scenarios.
Được đề xuất
Legacy Data Collection Systems
Data-collection terminals designed around older telephone-network services can use the SI2404-D-FS as the system-side modem controller. Multiple modem formats and a 2,400 bps base rate support established terminal ecosystems, while the 16-pin SOIC package permits compact retrofit assemblies. Engineers should verify the line-side companion, caller-ID behavior, clock requirements, and analog-network interface against the exact Revision D family documentation before layout release.
Được đề xuất
Dữ liệu tham khảo kỹ thuật cho SI2404-D-FS — 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 | SI2404-D-FSR | SI2401-FSR |
|---|---|---|---|
| Package | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC |
| Brand | Skyworks Solutions | Skyworks Solutions | Skyworks Solutions |
Bảo phân biệt quan trọng
- Direct match to established V-series and Bell modem requirements (vsSI2401-FSR)
- Same-family alternative with the same named rate and package (vsSI2404-D-FSR)
- Broader documented family feature set (vsSI2401-FSR)
- Established system-side positioning for legacy modem equipment (vsSI2404-D-FSR)
Ghi chú thiết kế
Place the SI2404-D-FS close to the selected line-side companion and analog-network interface to minimize sensitive-node routing and reduce susceptibility to noise pickup. Follow the Revision D manufacturer pin-description table for power, ground, clock, control, and analog assignments. Do not derive the PCB footprint only from the 16-pin SOIC name; verify land dimensions, pad length, and pin-1 orientation against the package drawing.
Separate modem clock and sensitive analog connections from switching supplies and high-current peripherals. Use the manufacturer-recommended grounding and decoupling arrangement, and route analog-network and isolation-boundary components according to the reference circuit. Estimated: no board-level impedance or noise budget can be assigned without the line-side device, clock source, isolation method, and physical layout, so validate these parameters on the final assembly.
Do not assume that the 56,000 bps family capability is available unconditionally. The SI2404-D-FS is identified at 2,400 bps, and the highest family rate depends on the selected line-side companion device. A replacement also requires verification of modem formats, clocking, firmware, pin functions, and companion-chipset compatibility rather than package and headline-rate matching alone.
Design the supply rails from the exact operating-voltage and current limits in the manufacturer datasheet, then include margin for the attached line-side modem and analog circuitry. Keep regulator switching nodes and magnetics away from clock and analog nodes, and provide local bypass capacitance at the device supply pins as specified by the family reference design. Supply sequencing must also prevent powered modem stages from back-feeding an unpowered SI2404-D-FS.
Thông tin tuân thủ
No definitive environmental or automotive qualification declaration was identified for the exact SI2404-D-FS ordering code. Confirm RoHS, REACH, AEC-Q100, terminal-finish, and conflict-mineral status with Skyworks before production release.