SI3211-BT - Single-Channel SLIC/Codec | Skyworks Solutions
MPN: SI3211-BT ✗ Son Kullanım ZamanıSI3211-BT Genel Bakış
A subscriber line interface circuit, or SLIC, is the analog-facing section of a telephone line interface. It bridges a PSTN or voice-frequency line with digital voice-processing electronics, while the codec converts linear audio into a digital PCM stream. Together, SLIC and codec functions form a subscriber line interface circuit, which belongs to the broader category of telecom interface integrated circuits and ultimately to the semiconductor hierarchy.
The SI3211-BT combines five-REN ringing, DTMF generation and decoding, Caller ID generation, and comprehensive telephony signaling in one device. Its single-channel architecture suits designs requiring one analog line and one digital voice path. Configuration through the SPI interface allows the equipment controller to manage line states, tone signaling, voice processing, and other subscriber-line functions.
The SI3211 family uses a CMOS implementation and separates line-interface requirements from host digital processing. The SI3211 variant selects an external tracking-battery supply, while the related SI3210 variant includes battery generation. This distinction is important when selecting a device because the external line-battery implementation, component values, and power budget must align with the telephone line being supported.
Typical applications include analog telephone adapters, voice-over-IP terminals, voice gateways, digital subscriber line equipment, fax and multifunction-printer interfaces, and embedded telephony controllers. Its software-configurable ringing and signaling functions can reduce the number of discrete line-interface components while allowing common firmware to serve multiple regions and line conditions.
Design the SI3211-BT around the external line network, protection components, digital host interface, and tracking-battery requirements specified in the manufacturer datasheet. Keep sensitive analog and line-driver traces away from fast SPI and PCM activity, provide the required bypass capacitors close to the supply pins, and validate surge, ringing, and off-hook behavior in the intended telephone network.
This product page combines the SI3211-BT interface, package, environmental, and signaling specifications with practical selection guidance, commercial request instructions, and an explicit review of drop-in replacement availability. It helps engineers distinguish the SI3211 from related family members before committing a telecom line-card design to production.
Drop-in alternatifler için SI3211-BT — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
Bu ürüne yer değiştirme seçenekleri mevcut değil.
Alternatifleri Talep EdinSI3211-BT Özellikler
| Device Type | Single-channel SLIC and voice codec IC |
| Number of Channels | 1 channel |
| Besleme Gerilimi | 3.3 V or 5 V |
| Besleme Akımı | 88 mA |
| Power Consumption | 700 mW |
| İşletim Sıcaklığı | -40°C to +85°C |
| Paket | 38-pin TSSOP, 4.40 mm width |
| Montaj Türü | Surface mount |
| Internal Ringing | Software-configurable up to 90 VPK |
| Ringing Load | 5 REN |
| DTMF Support | Generation and decoding |
| Caller ID | Generation supported |
| Digital Interface | SPI |
| Process Technology | CMOS |
| Battery Function | External tracking-battery selection |
SI3211-BT 38-pin tssop, 4.40 mm width Pin Yapısı Kılavuzu
SI3211-BT (38-pin tssop, 4.40 mm width paket) için pin yapısı. Pin numaralandırma, işlevleri ve bağlantı şemaları üretici veri kitapçığında tanımlanmıştır. Doğru ayak ve soldurma kılavuzları için onu referans alın.
Ayrıntılı pin çıkış verisi mevcut değil: SI3211-BT.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
SI3211-BT için uygundur 6 uygulamas: Voice-over-IP Terminals, Analog Telephone Adapters, Voice Gateway Equipment, Digital Subscriber Line Equipment, Facsimile and Printer Telephony Interfaces, Embedded Telephony Controllers.
Voice-over-IP Terminals
The SI3211-BT fits a single-line voice-over-IP terminal requiring an analog subscriber-line interface beside a network processor. Its integrated voice codec, DTMF generation and decoding, Caller ID generation, and SPI control provide the signaling path needed to connect a telephone line to digital packet processing. According to the manufacturer datasheet, the device supports 3.3 V or 5 V operation, software-configurable ringing up to 90 VPK across 5 REN, and an operating range of -40°C to +85°C. The implementation should use the datasheet’s external line, protection, and tracking-battery networks while separating sensitive analog routing from the host SPI interface.
Analog Telephone Adapters
SI3211-BT is appropriate for an analog telephone adapter that converts one PSTN voice line into digital audio for an embedded communications controller. Its single-channel architecture combines the SLIC and voice codec, reducing the number of separate analog interface devices while retaining DTMF and Caller ID functions. According to the manufacturer datasheet, the circuit supports five-REN internal ringing up to 90 VPK and both 3.3 V and 5 V supplies. Engineers should validate off-hook impedance, line current, ringing cadence, and external tracking-battery behavior against the target telephone network before production release.
Voice Gateway Equipment
The SI3211-BT can provide the subscriber-line endpoint within a voice gateway requiring one legacy analog channel and a digital compression or transcoding processor. Its SPI interface allows a gateway controller to configure line states, DTMF handling, Caller ID generation, and ringing behavior without dedicated tone-generation hardware. According to the manufacturer datasheet, the device is specified for 88 mA supply current, 700 mW power, and operation from -40°C to +85°C. The PCB should preserve separation between the line-facing analog section, ringing circuitry, digital host interface, and power-supply return paths.
Digital Subscriber Line Equipment
SI3211-BT is suitable for legacy DSL or digital line-interface equipment that retains an analog voice path alongside broadband signaling. Its integrated subscriber line interface and voice codec support one channel, while software-configurable ringing up to 90 VPK across five REN simplifies line alerting. According to the manufacturer datasheet, DTMF generation and decoding, Caller ID generation, and comprehensive telephony signaling are included. The 38-pin TSSOP package supports compact surface-mount layouts, but designers must implement the prescribed external protection, line-driver, and tracking-battery networks and verify coexistence with the broadband circuitry.
Facsimile and Printer Telephony Interfaces
The SI3211-BT can serve the analog telephone connection in a facsimile, printer, or multifunction office device that must pass voice-band signals while supporting hook-state and DTMF handling. Combining the SLIC and voice codec in one 38-pin TSSOP device can reduce external circuitry compared with separate line-interface and codec blocks. According to the manufacturer datasheet, the device supports 3.3 V or 5 V operation and software-configurable ringing up to 90 VPK across 5 REN. Firmware must coordinate the host controller with line-hook transitions, tone detection, and external tracking-battery control to maintain stable transmission behavior.
Embedded Telephony Controllers
SI3211-BT fits an embedded telephony controller that connects one analog line to a microcontroller or system-on-chip through SPI. The controller can use the programmable signaling and ringing functions to implement call progress, DTMF transfer, and Caller ID services. According to the manufacturer datasheet, the IC operates from 3.3 V or 5 V, draws 88 mA, and is specified from -40°C to +85°C. Layout guidance should prioritize short analog paths, careful grounding around the line interface, and separation from switching nodes, while firmware must follow the manufacturer’s initialization and line-state procedures.
Mühendislik referans verileri: SI3211-BT — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Tasarım Notları
Place the external line-network and protection components on the analog side of the board and keep their return current paths compact. Route the SI3211-BT line, battery, and sensing connections away from the SPI clock, SPI data, and PCM signals. Follow the reference network and component-placement diagrams in the manufacturer datasheet because the 38-pin TSSOP device combines sensitive analog functions with high-voltage ringing circuitry.
Budget the 3.3 V or 5 V digital supply separately from the external tracking-battery line supply. The SI3211-BT is specified at 88 mA and 700 mW, but total channel dissipation also depends on the selected battery voltage and operating state. Validate source current, startup behavior, and supply tolerances against the worst-case line condition rather than designing only from the nominal supply rating.
Use a solid ground-plane strategy that serves the codec and digital interface without carrying line-driver or ringing return current through sensitive signal areas. Keep the external battery and ringing components near their associated pins, observe the datasheet’s separation guidance, and reserve filtering locations for field adjustment. Confirm that PCB creepage and clearance remain adequate for the maximum ringing voltage specified for the design.
Do not substitute the SI3210 for SI3211-BT solely because both belong to the same family. The SI3210 includes battery generation, while SI3211 selects an external tracking-battery supply; related naming does not establish component, firmware, or register compatibility. Also avoid assuming that any single-channel SLIC is drop-in: ringing voltage, REN capability, pinout, host interface, and line-state behavior must all match before a PCB revision is approved.
Uyumluluk Bilgisi
No explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals declaration for this exact MPN was identified. AEC-Q100 is not applicable to this telecom interface IC.
