SI2404-D-GT - 2.4 kbit/s Global DAA Modem | Skyworks
部品番号: SI2404-D-GT ✓ 生産中SI2404-D-GT 概要
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.
ドロップイン代替品: SI2404-D-GT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: SI2404-D-GT （同一形状・フットプリント） — 相違点: Package Type, Product Type.
SI2404-D-FT
✅ ドロップイン価格はお問い合わせください
データシートを見る →SI2404-D-FTR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
SI2404-C-GT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
SI2404-C-FT
✅ ドロップイン価格はお問い合わせください
SI2404-D-GT 仕様
| 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 |
| ピン数 | 24 pins |
| 実装タイプ | Surface mount |
| RoHS ステータス | Compliant |
| ライフサイクル状態 | Active |
SI2404-D-GT 24-pin tssop ピン配置ガイド
SI2404-D-GT (24-pin tssop パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: SI2404-D-GT.
詳細は データシート をご参照ください。
主な用途
SI2404-D-GT の用途: 6 件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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: SI2404-D-GT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- Integrated modem and global DAA in one device （vs SI2404-D-FT)
- Six identified protocol options （vs SI2404-C-GT)
- Compact 24-pin surface-mount implementation （vs SI2404-D-FTR)
設計ノート
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.
コンプライアンス情報
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.