SI2404-D-GT - 2.4 kbit/s Global DAA Modem | Skyworks
MPN： SI2404-D-GT ✓ 啟用中SI2404-D-GT 概覽
A modem IC converts digital data into an analog signaling format suitable for transmission over a communications channel, and a global DAA provides the interface between that modem and the line or external analog network. The SI2404-D-GT integrates these functions into one package, reducing the component count and board area required for conventional data-communication terminals, modem cards, and embedded communication modules.
The SI2404-D-GT supports six identified modulation and signaling protocols: V.21, V.22, V.23, V.29, Bell 103, and Bell 212A. Its nominal 2.4 kbit/s data rate makes it appropriate for legacy asynchronous and synchronous communications, terminal equipment, remote data access, and industrial systems that must interoperate with established modem standards rather than broadband data rates.
Housed in a 24-pin TSSOP package, the SI2404-D-GT is intended for surface-mount PCB assembly. The package provides a compact footprint for equipment where connector area and board height are constrained. Detailed electrical limits, interface timing, clock requirements, and line-side implementation guidance should be confirmed against the manufacturer datasheet before schematic capture.
Typical uses include legacy data-terminal equipment, point-of-sale systems, industrial data-collection terminals, embedded modem modules, and communications equipment bridging digital logic to analog lines. Designers can select the protocol configuration required by the connected network and use the integrated DAA to reduce the number of external interface components.
When laying out a PCB, follow the manufacturer pin-description and application schematics for power, ground, analog, and digital connections. Keep sensitive modem and DAA traces away from noisy switching paths, use a stable low-noise supply, and validate the completed interface against the target line standard. The 24-pin TSSOP outline requires careful escape routing between its closely spaced leads.
This product page consolidates the SI2404-D-GT data rate, supported protocols, package details, pin-access guidance, and same-family alternatives into a focused engineering reference. It also provides practical selection criteria for legacy modem and global DAA designs where a 2.4 kbit/s interface and 24-pin TSSOP integration are the decisive requirements.
直接替換替代品，適用於 SI2404-D-GT — 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。
此系列的變體
與下列產品可直接替換的同系列型號： SI2404-D-GT （相同外形與佔位） — 差異在於 Package Type, Product Type.
SI2404-D-FT
✅ 直接替換聯絡詢價
查看資料表 →SI2404-D-FTR
✅ 直接替換📋 參考替代品（不在目錄中）
SI2404-C-GT
✅ 直接替換📋 參考替代品（不在目錄中）
SI2404-C-FT
✅ 直接替換聯絡詢價
SI2404-D-GT 規格
| Product Type | Integrated modem and global DAA IC |
| Nominal Data Rate | 2.4 kbit/s |
| Supported Protocol V.21 | Supported |
| Supported Protocol V.22 | Supported |
| Supported Protocol V.23 | Supported |
| Supported Protocol V.29 | Supported |
| Supported Protocol Bell 103 | Supported |
| Supported Protocol Bell 212A | Supported |
| Package Type | 24-pin TSSOP |
| 腳位數 | 24 pins |
| 安裝類型 | Surface mount |
| RoHS 狀態 | Compliant |
| 生命週期狀態 | Active |
SI2404-D-GT 24-pin tssop 腳位配置指南
SI2404-D-GT（24-pin tssop 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： SI2404-D-GT.
請參閱 資料表 以查看完整腳位配置。
典型應用
SI2404-D-GT 適用於 6 應用s: Legacy Data Terminal Equipment, Industrial Data Collection, Point-of-Sale Terminal, Embedded Modem Module, Remote Monitoring System, Telecommunications Test Equipment.
Legacy Data Terminal Equipment
The SI2404-D-GT fits legacy data-terminal equipment that connects a digital host to a 2.4 kbit/s communications channel. Its integrated modem and global DAA reduce the component count and PCB area required to implement V.21, V.22, V.23, V.29, Bell 103, or Bell 212A operation. The 24-pin TSSOP package supports compact surface-mount designs, while the multiple protocol options allow the same platform to address different line standards. Designers should configure the required protocol, verify timing and electrical limits in the manufacturer datasheet, and validate the complete line interface before production.
推薦
Industrial Data Collection
The SI2404-D-GT is appropriate for industrial data-collection equipment that relies on established 2.4 kbit/s modem protocols. Support for V.21, V.22, V.23, V.29, Bell 103, and Bell 212A provides flexibility when remote endpoints use different legacy modulation schemes. Integrating the modem and global DAA in one 24-pin TSSOP device reduces board space and simplifies the communications subsystem. The installation still requires careful review of line coupling, isolation, surge protection, grounding, and environmental requirements, because the communications channel may be exposed to industrial noise and transients.
推薦
Point-of-Sale Terminal
The SI2404-D-GT can support point-of-sale terminals that communicate through a 2.4 kbit/s modem rather than a modern broadband interface. The integrated global DAA provides a compact path between the modem circuitry and the external line, while six supported protocols improve compatibility with different backend systems. Its 24-pin TSSOP package is useful where the product enclosure has limited board area and requires surface-mount assembly. Product engineers must confirm protocol compatibility, transaction timing, line protection, and ESD requirements, and should use the manufacturer application implementation as the schematic and layout baseline.
推薦
Embedded Modem Module
The SI2404-D-GT fits embedded modem modules that must add legacy communications to a digital controller. Its 2.4 kbit/s modem and global DAA functions occupy a single 24-pin TSSOP footprint, simplifying assembly compared with a split modem and line-interface design. The protocol set supports V.21, V.22, V.23, V.29, Bell 103, and Bell 212A, allowing a common hardware platform to serve different installed-base requirements. Confirm the module's required data format, control signaling, clocking, line impedances, and supply limits against the manufacturer documentation before fixing the PCB design.
推薦
Remote Monitoring System
The SI2404-D-GT can be integrated into a remote monitoring system that sends low-bandwidth telemetry through an established 2.4 kbit/s modem network. Its support for six legacy protocols allows the monitoring equipment to interoperate with systems using V.21, V.22, V.23, V.29, Bell 103, or Bell 212A. The 24-pin TSSOP package keeps the radio and digital control sections compact, while the integrated global DAA reduces the external line-interface footprint. For field installations, add the required isolation and surge protection and verify EMC, temperature, and power-consumption requirements against the final enclosure.
推薦
Telecommunications Test Equipment
The SI2404-D-GT is suitable for telecommunications test equipment that must emulate or communicate with legacy 2.4 kbit/s modem endpoints. The range of V.21, V.22, V.23, V.29, Bell 103, and Bell 212A protocols allows a tester to cover several modulation standards without changing the physical package. Combining the modem and global DAA in a 24-pin TSSOP supports compact instrumentation and daughterboard designs. Engineers should establish the exact test profile, line impedance, signal timing, and isolation architecture, then use the manufacturer application schematics to reproduce power and analog routing accurately.
推薦
推薦產品摘要
工程參考資料，適用於 SI2404-D-GT — 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 | SI2404-D-FT | SI2404-D-FTR | SI2404-C-GT | SI2404-C-FT |
|---|---|---|---|---|---|
| Brand | Skyworks Solutions Inc. | Skyworks Solutions Inc. | Skyworks Solutions Inc. | Skyworks Solutions Inc. | Skyworks Solutions Inc. |
| Package | 24-pin TSSOP | 24-pin TSSOP - same package | 24-pin TSSOP - same package | 24-pin TSSOP - same package | 24-pin TSSOP - same package |
| Pin Count | 24 pins | 24 pins | 24 pins | 24 pins | 24 pins |
| Mounting Type | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount |
主要差異化特點
- Integrated modem and global DAA in one device (對比SI2404-D-FT)
- Six identified protocol options (對比SI2404-C-GT)
- Compact 24-pin surface-mount implementation (對比SI2404-D-FTR)
設計說明
Build the footprint from the TSSOP-24 mechanical drawing rather than assigning a generic 24-pin land pattern. Confirm body width, lead pitch, toe length, and exposed-pad status against the ordered package. Keep the modem and global DAA power connections close to their decoupling components, and route the analog line-side region separately from switching nodes and digital clocks.
Do not treat a shared TSSOP-24 outline as proof that every SI2404 variant is electrically interchangeable. Before replacing the SI2404-D-GT, compare the complete pin-description table, supply limits, operating-temperature range, protocol behavior, timing requirements, and line-side interface. Pay particular attention to any ordering suffix that changes temperature grade, packing, or device revision.
Use the manufacturer application schematic to establish clocking, grounding, and separation between digital control signals and the analog communications interface. Route sensitive modem signals continuously over a stable ground reference, avoid running them beneath unrelated switching-current paths, and include test points for clock, data, control, and line signals so timing and noise can be checked during hardware validation.
合規資訊
RoHS compliance is identified in the component comparison information. Automotive qualification, REACH status, lead-free status, halogen-free status, and conflict-minerals status are not established.