SI3232-KQ - Dual-Channel Programmable SLIC | Silicon Labs
MPN: SI3232-KQ ✓ نشطSI3232-KQ نظرة عامة
A SLIC is an integrated telephone-interface device that combines programmable analog voice-channel functions with digital control. It belongs to the interface IC hierarchy, connecting a voice codec or system controller to an analog telephone line. The SI3232-KQ targets CPE designs requiring two channels, centralized register configuration, and a compact low-voltage CMOS implementation.
The device provides dual-channel SLIC functionality, a 3.3 V single-supply operating requirement, and a standard SPI control interface. These features make it suitable for voice gateways, digital subscriber line equipment, analog telephone adapters, and other multi-channel voice systems. Programmability allows the controller to configure channel behavior through the serial interface instead of requiring separate fixed-function logic for each line.
Its architecture separates low-voltage channel processing from high-voltage linefeed functions. According to the supplied Silicon Laboratories datasheet, the SI3232 performs all programmable SLIC functions, whereas the Si3200 performs all high-voltage functions. This division limits high-voltage handling to the dedicated linefeed IC while allowing the SI3232-KQ to operate from 3.3 V CMOS supply rails.
Typical applications include two-channel analog telephone interfaces, customer premise equipment, voice-over-packet gateways, and telecom access products that require software-controlled SLIC operation. A system implementation must also account for the external Si3200, external line protection, and the separation between low-voltage logic and high-voltage telephone-line functions.
The principal design consideration is system partitioning. The SI3232-KQ should not be treated as a complete standalone line interface: it requires the Si3200 for high-voltage functions, suitable bypass components, careful SPI control, and application-specific protection. Verified pin-level connection and absolute timing limits should be checked against the manufacturer datasheet before layout release.
This page consolidates the verified SI3232-KQ product facts, identifies the Si3200 companion device, and separates documented characteristics from parameters that require datasheet confirmation. It also highlights sourcing and replacement constraints that are not resolved by generic SLIC cross-reference results.
بدائل مباشرة لـ SI3232-KQ — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
لا تتوفر بدائل متوافقة تمامًا لهذا المنتج.
اطلب بدائلSI3232-KQ المواصفات
| Product Type | Dual-channel programmable CMOS SLIC |
| Number of Channels | 2 channels |
| جهد التغذية | 3.3 V |
| Supply Architecture | Single supply |
| Process Technology | Low-voltage CMOS |
| Digital Control Interface | Standard SPI bus |
| Programmability | Fully software-programmable SLIC functions |
| High-Voltage Function Location | External Si3200 linefeed interface IC |
| العلبة | 64-pin TQFP |
| عدد الأطراف | 64 pins |
| نوع التركيب | Surface mount |
| Application Category | Customer premise equipment (CPE) |
| Telephone Interface Type | Analog telephone interface |
| High-Voltage Functions | Not performed by SI3232 |
| Regulatory Support | LSSGR, ITU, and ETSI specifications |
دليل تكوين أطراف SI3232-KQ 64-pin tqfp
تكوين الأطراف لـ SI3232-KQ (حزمة 64-pin tqfp). يتم تعريف ترقيم الأطراف والوظائف ومخططات التوصيل في ورقة البيانات الفنية من الشركة المصنعة. راجعها للحصول على البصمة الدقيقة وإرشادات اللحام.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ SI3232-KQ.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
SI3232-KQ مناسب لـ 6 التطبيقs: Dual-Channel Analog Telephone Interface, Customer Premise Equipment, Voice Gateway and VoIP Terminal Interface, Digital Subscriber Line Access Equipment, Analog Telephone Adapter, Programmable Telecom Test Interface.
Dual-Channel Analog Telephone Interface
The SI3232-KQ fits a two-channel analog telephone interface because it combines two programmable SLIC channels with a common 3.3 V supply and SPI control path. A system controller can configure the device through the standard serial interface while the companion Si3200 handles high-voltage linefeed functions. This partitioning reduces the high-voltage burden on the SI3232-KQ and keeps the low-voltage control section compatible with customer premise equipment. The application still requires verified protection, grounding, and line-interface components around the Si3200.
موصى به
Customer Premise Equipment
The SI3232-KQ is suitable for customer premise equipment because it provides a fully software-programmable dual-channel SLIC in a single 64-pin TQFP device. Its 3.3 V single-supply operation fits controller-based CPE architectures, and SPI permits centralized configuration of both analog channels. The device should be implemented with the Si3200 for high-voltage functions, together with the external protection and filtering required by the target telephone line. Firmware support for the SI3232 register model must also be confirmed before design freeze.
موصى به
Voice Gateway and VoIP Terminal Interface
A voice gateway can use the SI3232-KQ when it must expose two analog telephone lines to a digital voice processor. The standard SPI interface gives the host controller a configurable path for channel setup, while the dual-channel architecture reduces the number of separate low-voltage SLIC packages. The verified 3.3 V operating requirement supports integration with modern CMOS logic. Because this is a line-facing application, engineers should not omit the Si3200, surge protection, isolation strategy, or regulatory review of the completed telephone interface.
موصى به
Digital Subscriber Line Access Equipment
The SI3232-KQ can support programmable analog voice-channel functions within DSL access equipment that also contains high-speed digital line processing. Its two-channel SLIC organization allows one low-voltage IC to serve two voice paths, while SPI lets a system controller reuse the same configuration mechanism. The SI3232 remains complementary to the Si3200 because only the latter performs high-voltage functions. Board-level telephone protection, isolation, and regulatory compliance must therefore be designed around the complete SLIC-plus-linefeed arrangement.
موصى به
Analog Telephone Adapter
The SI3232-KQ is applicable to a two-port analog telephone adapter when the product needs software-programmable SLIC behavior rather than a fixed-function interface. Its single 3.3 V supply and SPI control simplify integration with a digital baseband or network processor, and the 64-pin TQFP package provides a defined surface-mount implementation. The adapter must still include the Si3200 for high-voltage operation, along with suitable line protection and ringing/speech-path components. Exact pin use and timing limits must be verified from the manufacturer datasheet.
موصى به
Programmable Telecom Test Interface
The SI3232-KQ can be used in telecom test equipment that needs two configurable analog SLIC channels under host control. SPI programming allows test software to vary supported channel parameters, while the fixed dual-channel structure simplifies repeatable multi-port test setups. The SI3232-KQ operates from 3.3 V, but production equipment still needs the Si3200 and appropriate external line networks to reproduce high-voltage telephone conditions. Calibration, protection, and test-safety isolation should be reviewed independently of the IC's programmable SLIC capability.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ SI3232-KQ — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج |
|---|---|
| Brand | Silicon Laboratories |
| Package | 64-pin TQFP |
| Product Type | Programmable CMOS SLIC |
| Channel Count | 2 channels |
| Supply Voltage | 3.3 V single supply |
| Digital Control Interface | Standard SPI bus |
| High-Voltage Functions | Performed by external Si3200 |
| Process Technology | Low-voltage CMOS |
| Programmability | Fully software-programmable |
| Application Category | Customer premise equipment |
أبرز الفروقات
- Two programmable analog channels in one device (مقابلSi3200)
- Single 3.3 V low-voltage CMOS supply (مقابلSi3200)
- Standard SPI digital configuration path (مقابلSi3200)
ملاحظات التصميم
The SI3232-KQ operates from a single 3.3 V supply, but the complete telephone interface also contains the external Si3200 and its high-voltage circuitry. Follow the manufacturer power-decoupling connections and provide local bypass close to the SI3232 supply pins. Keep the 3.3 V low-voltage return and high-voltage linefeed return strategy consistent with the reference design to avoid coupling line transients into the SPI-controlled SLIC section.
Separate the low-voltage SI3232-KQ section from the Si3200 high-voltage linefeed area and route telephone-line currents away from SPI signals and supply traces. The verified material does not provide exact keepout or creepage dimensions, so use the manufacturer application circuit, recommended layout, and applicable telephone-network isolation requirements rather than relying on generic spacing assumptions. Confirm the 64-pin TQFP land pattern directly against the package drawing.
Do not treat the Si3200 as a substitute for the SI3232-KQ: the Si3200 performs the high-voltage functions, while the SI3232 performs programmable SLIC functions. Similarly, generic cross-reference results do not prove pin compatibility. Before a replacement is approved, compare the 64-pin TQFP pinout, 3.3 V limits, SPI timing and register map, channel behavior, and the exact ordering suffix used by the production BOM.
معلومات الامتثال
The supplied SI3232-KQ datasheet states compliance with relevant LSSGR, ITU, and ETSI specifications for programmable SLIC functions, but no explicit RoHS, REACH, halogen-free, or conflict-minerals declarations were included. AEC-Q100 is not applicable to this telecom-interface IC based on the provided category information.
