SI3050-KT - Global Voice DAA | Silicon Labs | Telecom
MPN: SI3050-KT ✗ Tapus ng BuhaySI3050-KT Ulas
A direct access arrangement is the analog interface between a telephone line and a digital voice system. This category of interface IC integrates the functions needed to detect line state, supervise current, exchange voice samples, and support a local handset. A global voice DAA therefore sits between a foreign-exchange-office line and digital telephony circuitry, where it replaces a larger collection of discrete analog, isolation, and supervision components.
The Si3050 uses Silicon Laboratories' patented capacitive isolation technology, allowing high-voltage capacitors to provide isolation without the same bulk and cost as isolation transformers, relays, or optoisolators. The companion Si3011, Si3018, and Si3019 devices support system-side implementations, while the SI3050 handles the line-side interface. Its programmable control and monitoring functions provide designers with a configurable interface for globally compliant voice-telephony equipment.
A key technical benefit is the integration of the PCM highway or SPI control path with a conventional telephone-line interface. The 80 dB dynamic range supports voice-band signal handling, while line-voltage and loop-current monitors report the external line state to system logic. The selectable +6 dBm and +3.2 dBm operating levels provide installation flexibility, and u-law and A-law companding supports widely deployed PCM telephony formats. The parallel handset interface adds direct local-handset connectivity.
Typical applications include voice cards, foreign-exchange-office customer premises equipment, digital telephone adapters, caller-ID systems, voice gateways, analog telephone line interfaces, and embedded telephony platforms. In these systems, the SI3050-KT connects the analog line to a companion Si3011, Si3018, or Si3019 system-side device and translates line activity and voice signals into a digital interface.
Designers should pay particular attention to the external isolation, protection, and line-interface network because the SI3050-KT does not replace application-specific overvoltage protection. PCB placement should preserve the isolation region between the telephone line and logic domains, and the 4.40 mm TSSOP footprint requires careful lead spacing during assembly. Verify the exact companion-device configuration, country-specific line compliance, and isolation-component values against the manufacturer datasheet.
This product page consolidates verified package, interface, monitoring, companding, and lifecycle information with application guidance and drop-in cross-reference analysis. It also separates confirmed specifications from parameters that require manufacturer-document verification, helping engineers evaluate the SI3050-KT without mistaking distributor metadata for a complete electrical characterization.
Mga alternatibo na pwedeng ilagay na SI3050-KT — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
SI3050-D-FT
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
SI3050-KT Mga Spesipikasyon
| Product Type | Programmable global voice direct access arrangement (DAA) |
| Packhaging | 20-pin TSSOP, 4.40 mm width |
| Bilang ng Pin | 20 pins |
| Uri ng Pagpapasok | Surface mount |
| Digital Interface | PCM highway and SPI control interfaces |
| Interface to Line | GCI interface |
| Dynamic Range | 80 dB |
| Voice Companding | u-law and A-law |
| Transmit and Receive Levels | +6 dBm or +3.2 dBm |
| Line Monitoring | TX/RX line-voltage monitor |
| Current Monitoring | Loop-current monitor |
| Local Handset Support | Parallel handset interface |
| Isolation Technology | Patented capacitive isolation technology |
| Packaging | Tube |
| Lead-Free Status | Contains lead |
| Tindminan RoHS | RoHS non-compliant |
Gabay sa Pin Configuration ng SI3050-KT 20-pin tssop, 4.40 mm width
Pin configuration para sa SI3050-KT (20-pin tssop, 4.40 mm width package). Ang pagnunumero ng pin, mga function, at connection diagram ay tinukoy sa datasheet ng manufacturer. Sumangguni dito para sa eksaktong footprint at mga alituntunin sa soldering.
Wala ng detalyadong pinout data na magagamit para sa SI3050-KT.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
SI3050-KT ay nararapat para sa 6 aplikasyons: Foreign Exchange Office Customer Premises Equipment, Digital Telephone Adapter, Analog Voice Interface Card, Caller ID and Line Supervision System, Voice Gateway Line Card, Embedded Telephony Platform.
Foreign Exchange Office Customer Premises Equipment
The SI3050-KT fits the line side of a foreign-exchange-office design because it combines an analog telephone-line interface, programmable control, an 80 dB dynamic range, and support for Si3011, Si3018, or Si3019 system-side devices. Its PCM highway or SPI path can carry voice samples and supervision information to the digital processing section. Capacitive isolation separates the line domain without requiring a conventional isolation transformer, relay, or optoisolator. Country-specific line behavior, protection networks, and component values still require verification against the current regional requirements.
Inirekomenda
Digital Telephone Adapter
The SI3050-KT is appropriate for a digital telephone adapter that must accept an analog line and present controlled voice data to digital circuitry. Its programmable TX/RX level options of +6 dBm or +3.2 dBm support installation-level adjustment, while the line-voltage and loop-current monitors allow supervisory software to distinguish line events. The 80 dB dynamic range is suitable for the voice-band role, and the 20-pin TSSOP package reduces board-space requirements compared with a larger discrete interface implementation.
Inirekomenda
Analog Voice Interface Card
For an analog voice interface card, the SI3050-KT consolidates telephone-line sensing, loop-current supervision, voice-path control, companding, and digital transport into one programmable DAA. Its GCI capability and selectable +6 dBm or +3.2 dBm operating levels support multiport voice-card design, while the parallel handset interface can support a local parallel-handset path. Designers must preserve the high-voltage isolation boundary and add application-specific overvoltage protection outside the IC.
Inirekomenda
Caller ID and Line Supervision System
The SI3050-KT supports caller-ID and line-supervision equipment through its combination of line-voltage monitoring, loop-current monitoring, and a programmable digital control interface. The SI3050 can report external line conditions to an Si3011, Si3018, or Si3019 companion while simultaneously handling the voice path. Its u-law and A-law companding options align with conventional PCM telephony formats. Exact signal timing, detection thresholds, and regional line requirements are not present in the supplied data and must be checked in the manufacturer datasheet.
Inirekomenda
Voice Gateway Line Card
A voice gateway line card benefits from the SI3050-KT because it integrates an analog line interface, programmable level control, monitoring, companding, and digital connectivity. The device can pair with the Si3011, Si3018, or Si3019 family to concentrate voice traffic over a shared digital interface. Capacitive isolation helps keep telephone-line energy away from sensitive logic while avoiding the size of a traditional isolation transformer. Engineers should validate thermal performance, isolation capacitors, protection devices, and clocking for the complete line-card implementation.
Inirekomenda
Embedded Telephony Platform
The SI3050-KT can serve embedded telephony platforms that require a compact, programmable line-side interface alongside digital signal processing. Its 20-pin TSSOP package supports compact assembly, and the parallel handset interface provides a useful path for local-handset control. The documented 80 dB dynamic range, loop-current monitor, and line-voltage monitor provide the core functions needed to manage an analog line. Before adoption, confirm the device's current lifecycle status, supply requirements, absolute maximum ratings, and country-specific compliance.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for SI3050-KT — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | SI3050-D-FT |
|---|---|---|
| Brand | Silicon Labs | Silicon Labs |
| Package | 20-TSSOP, 4.40 mm width | 20-TSSOP - same package class |
| Product Type | Programmable global voice DAA | System-side DAA |
| Pin Count | 20 pins | 20 pins |
Pangunahing mga Pagkakaiba
- Integrated global voice DAA functionality (kumpara saSI3050-D-FT)
- Capacitive isolation without conventional isolation components (kumpara saSI3050-D-FT)
- Programmable line and level supervision (kumpara saSI3050-D-FT)
Talaan ng Disenyo
Preserve the telephone-line isolation boundary throughout the PCB stack-up and component placement. Keep the SI3050-KT line-side and logic-side networks segregated, place approved isolation capacitors at the intended interface, and maintain the clearances required by the final telephone-network and safety design. Copper, slots, connectors, and test equipment can unintentionally defeat isolation if they bridge the boundary.
Do not assume that the SI3050-KT's digital-side supply arrangement also satisfies the telephone-line interface requirements. Determine the required line-side bias network, protection devices, surge paths, and supply tolerances from the manufacturer application schematic and applicable regional rules. Confirm all component voltage ratings and ensure that fault energy is diverted by the external protection network rather than the DAA.
Treat SI3050-D-FT as a candidate rather than an automatic replacement until its complete pinout, registers, electrical limits, clocking, isolation network, and line-interface behavior are compared with SI3050-KT. The verified search confirms a common 20-pin TSSOP format but does not establish unconditional pin-to-pin compatibility. A package match alone cannot validate a legacy telephone interface.
Follow the manufacturer placement and external-network recommendations for the 20-pin TSSOP footprint and the Si3011/18/19 companion arrangement. Keep high-voltage line nodes physically separated from low-level digital signals, minimize loop area around sensitive nodes, and use a ground and isolation strategy that remains effective at the installed system level. Validate the assembly against the actual tube orientation and pin-1 marking.
Impormasyon ng Pagsunod sa Kautusan
Verified distributor metadata states that the SI3050-KT is RoHS non-compliant and contains lead. REACH, halogen-free, and conflict-minerals information was not supplied.
