SI2439-A-GM V.34/V.92 ISOMODEM | Skyworks Solutions
MPN: SI2439-A-GM ✓ فعالSI2439-A-GM نمای کلی
An ISOmodem is an integrated modem interface and data-access arrangement used within communications equipment. In this product category, the modem controller and telephone-line interface functions are combined to reduce the number of external components needed by the host system. Within the broader hierarchy, an ISOmodem is an interface IC, a communication IC, and ultimately a semiconductor designed to connect digital equipment to analog or digital communication channels.
The SI2439-A-GM is identified by Skyworks Solutions as a V.34/V.92 modem with global DAA support. It supports operation up to 33.6 kbps, as confirmed by the product listing for the exact MPN. The 38-QFN package places the device in a compact surface-mount format suitable for high-density communication equipment, while the exposed-pad construction provides a defined path for heat transfer through the PCB. The 3 V to 3.6 V operating supply allows integration with common low-voltage digital systems.
A primary use for this device is a data communications terminal or remote-access unit requiring a complete system-side modem. The global DAA can support country-specific telephone-line interfaces while the V.34 and V.92 capabilities provide compatibility with legacy and higher-speed modem standards. Integration can reduce board area compared with a discrete codec, line-driver, and controller implementation, although the host equipment must still satisfy the applicable telephone-network requirements.
Designers should pay close attention to the analog line interface, supply decoupling, exposed-pad soldering, and signal-integrity layout. The manufacturer datasheet is the controlling document for pin assignments, recommended external circuitry, timing, electrical limits, and programming procedures. Because the modem connects directly to communication circuitry, keep sensitive analog routing separated from noisy digital and power-conversion paths, and provide the required bypass capacitors close to the supply pins.
This product page organizes the exact SI2439-A-GM identity, package information, technical specifications, sourcing guidance, and verified same-family alternatives into one engineering reference. It also distinguishes confirmed catalog parameters from detailed electrical characteristics that must be established from the manufacturer datasheet before schematic capture or production release.
جایگزین‌های drop-in برای SI2439-A-GM — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای SI2439-A-GM (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Maximum Data Rate, Package, Product Type.
SI2439-B-GM
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
SI2439-C-GM
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
SI2494-A-GM
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←SI2439-A-GM مشخصات
| Product Type | V.34/V.92 ISOmodem system-side interface IC |
| Maximum Data Rate | 33.6 kbps |
| Supported Modem Standards | ITU-T V.34 and V.92 |
| DAA Support | Global DAA |
| Supply Voltage Range | 3 V to 3.6 V |
| بسته‌بندی | 38-pin QFN, 5 mm x 7 mm |
| Package Form | 38-VFQFN with exposed pad |
| نوع نصب | Surface mount |
| Component Category | Modems ICs and Modules |
| Product Family | ISOmodem chipset |
| Data Standards | V.92 and V.34 |
| وضعیت RoHS | RoHS compliant |
| Lead-Free Status | Lead free |
راهنمای پیکربندی پین SI2439-A-GM 38-vfqfn with exposed pad
پیکربندی پین برای SI2439-A-GM (پکیج 38-vfqfn with exposed pad). شماره‌گذاری پایه‌ها، عملکردها و نمودارهای اتصال در دیتاشیت سازنده تعریف شده است. برای footprint دقیق و دستورالعمل‌های لحیم‌کاری به آن مراجعه کنید.
داده پین‌آوت تفصیلی موجود نیست برای SI2439-A-GM.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
SI2439-A-GM مناسب است برای 6 کاربردs: V.34 Remote-Access Terminal, V.92 Data-Modem Equipment, Global-DAA Telephone Interface, Industrial Data Communication Gateway, Embedded Data Terminal, Telecommunications Service Equipment.
V.34 Remote-Access Terminal
SI2439-A-GM fits a remote-access terminal requiring a system-side modem at up to 33.6 kbps. The confirmed V.34 capability provides the protocol foundation, while V.92 support broadens compatibility with the surrounding access equipment. Place the IC beside the telephone-network interface and route the analog line signals according to the manufacturer reference design. Its 38-QFN 5 mm by 7 mm package preserves board area in compact terminal hardware, but the exposed-pad land pattern and grounding layout must follow the datasheet exactly.
پیشنهادی
V.92 Data-Modem Equipment
SI2439-A-GM is suitable for equipment designed around V.92 modem operation while retaining V.34 compatibility. The device's documented maximum data rate of 33.6 kbps makes it relevant to legacy and transition-era modem systems, and its global DAA support simplifies integration where country-specific line-interface behavior must be managed. The 3 V to 3.6 V operating range aligns with low-voltage host logic, although the power architecture, bypass network, and host-control interface must be implemented exactly as described by Skyworks Solutions.
پیشنهادی
Global-DAA Telephone Interface
The global DAA identified for SI2439-A-GM supports telephone-interface designs intended for internationally varied line conditions. Integrating the DAA-related function into the system-side modem can simplify board partitioning while retaining V.34 and V.92 operation. However, DAA integration does not remove country-specific certification or network-interface obligations. The implementation should follow the recommended line-network components, isolation strategy, and analog layout in the manufacturer datasheet, with particular attention to keeping sensitive line signals away from digital switching paths.
پیشنهادی
Industrial Data Communication Gateway
SI2439-A-GM can support legacy connectivity in an industrial gateway that must interoperate with V.34 or V.92 modem equipment. The 33.6 kbps rate is appropriate for low-bandwidth control, configuration, and monitoring links rather than modern high-throughput traffic. Its 38-QFN package supports compact industrial terminal designs, but deployment requires confirmation of operating-temperature limits, EMC performance, and environmental compliance from the manufacturer documentation before the product is used in harsh environments.
پیشنهادی
Embedded Data Terminal
SI2439-A-GM is appropriate for embedded terminals that require a direct modem connection rather than an external USB or network modem. Supporting both V.34 and V.92 lets one platform address a broad range of legacy access equipment. The compact 38-QFN package and 3 V to 3.6 V supply support integration into dense embedded systems, while system designers must budget board area for the recommended external telephone-interface network, bypass capacitors, and exposed-pad thermal construction.
پیشنهادی
Telecommunications Service Equipment
SI2439-A-GM can be evaluated for telecommunications service equipment that still depends on V.34 and V.92 modem links. The global DAA and system-side modem positioning make it relevant to line-interface subsystems, test equipment, and legacy-access adapters. Since the catalog summaries establish protocol and packaging but not full electrical ratings, engineers should verify clock tolerance, line impedance requirements, operating temperature, EMC behavior, and production test procedures in the manufacturer datasheet before architecture approval.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای SI2439-A-GM — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | SI2439-B-GM | SI2439-C-GM | SI2494-A-GM |
|---|---|---|---|---|
| Package | 38-QFN (5x7) | 38-QFN (5x7) | 38-QFN (5x7) | 38-QFN (5x7) |
| Brand | Skyworks Solutions | Skyworks Solutions | Skyworks Solutions | Skyworks Solutions |
| Product Type | System-side ISOmodem | System-side ISOmodem | System-side ISOmodem | V.92/V.34 ISOmodem |
| V.34 Support | Supported | Supported by SI2439 family | Supported by SI2439 family | Supported |
| V.92 Support | Supported | Supported by SI2439 family | Supported by SI2439 family | Supported |
تفاوت‌های کلیدی
- Exact cataloged V.34 and V.92 system-side modem configuration (در مقابلSI2494-A-GM)
- Direct A-grade ordering variant (در مقابلSI2439-B-GM)
- Compact 38-QFN integration in a 5 mm by 7 mm footprint (در مقابلSI2439-C-GM)
یادداشت‌های طراحی
Use the manufacturer PCB land pattern for the 38-QFN 5 mm by 7 mm package, including its exposed pad, rather than creating a generic 38-pin footprint. Confirm pad dimensions, solder-mask opening, and paste stencil against the latest package drawing. A mechanically correct footprint is essential because the exposed pad also provides the primary vertical thermal path and may be tied to ground according to the reference design.
Separate the telephone-line and other sensitive analog paths from digital clocks, switching-regulator nodes, and high-current return paths. Keep the modem and its recommended passive network compact, use short ground returns, and avoid routing communications traces beneath isolated or noisy regions. Follow the manufacturer reference layout for component orientation and line-network placement because small analog-routing differences can affect signal integrity and test margins.
Design a stable 3 V to 3.6 V supply for the modem and place the recommended bypass capacitors close to their associated device pins. Check the datasheet for sequencing, ripple tolerance, and capacitor technology before fixing the power network. The exposed-pad connection should follow the manufacturer grounding instructions, and analog supply branches should avoid sharing high-impedance return paths with unrelated digital loads.
Do not treat SI2439-B-GM, SI2439-C-GM, or SI2494-A-GM as interchangeable solely because they are related modem variants. Compare the complete pin-description table, clock requirements, protocol features, host interface, DAA implementation, recommended external network, and exposed-pad connection. Any substitution also requires confirmation that the package suffix, temperature grade, and production configuration remain equivalent.
اطلاعات انطباق
The SI2439-A-GM datasheet listing states RoHS compliant and lead free. No AEC-Q100 qualification, REACH status, halogen-free declaration, or conflict-minerals statement is established.
