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Skyworks Solutions Inc. SI2144-A-DVBT2TC
- Part No.:
- SI2144-A-DVBT2TC
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
SI2144-A-DVBT2TC.pdf
- Description:
- DAUGHTER CARD WW TUNER KIT
- Quantity:
- Payment:
- Shipping:
Inventory:3,950
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Product details
Overview
Si2144-A-DVBT2TC from Silicon Laboratories is a worldwide digital set-top box (STB) tuner IC supporting DVB-T2, DVB-C, ATSC, QAM, ISDB-T/C, and DTMB standards. It features 42–870 MHz RF input range, 1.7–10 MHz channel bandwidths, integrated LDO for single 3.3 V supply, and low-IF (LIF) differential output (4–7 MHz center, 0.5–2.0 Vppd). Used in terrestrial/cable STBs for high-reception-margin digital TV signal acquisition.
For engineers reviewing the Si2144-A-DVBT2TC datasheet, Si2144-A-DVBT2TC pinout, Si2144-A-DVBT2TC application, or Si2144-A-DVBT2TC equivalent, key selection criteria include DVB-T2/T/C2/C/ATSC/QAM multi-standard support, integrated loop-through with zero-power mode (ZPS), LTE/Wi-Fi interference immunity, 3×3 mm QFN-24 package, and industry-leading phase noise (–100 dBc/Hz @ 1 kHz offset at 860 MHz).
Technical Context
The Si2144-A-DVBT2TC implements a fully integrated low-IF architecture with on-chip RF PGA, tracking filters, harmonic-rejection mixer, and digital AGC control. Its dual-supply (3.3 V / 1.8 V) or single-supply (3.3 V + internal 1.8 V LDO) operation enables flexible SoC interfacing while maintaining <4.8 dB NF across VHF/UHF bands.
It delivers programmable LIF output (center frequency 4–7 MHz, amplitude 0.5–2.0 Vppd) and includes a dedicated loop-through path with active gain (+2.9 dB) and zero-power mode (–2.2 dB insertion loss), eliminating external baluns, SAW filters, and wire-wound inductors per design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Input Range | 42–870 MHz - covers full VHF-L1/L2/H and UHF terrestrial/cable broadcast bands |
| Channel Bandwidths | 1.7 / 6 / 7 / 8 / 10 MHz - supports DVB-T2, DVB-C2, ATSC, ISDB-T, DTMB |
| LIF Output Center Freq | 4–7 MHz (configurable per bandwidth) - matches standard demodulator IF input requirements |
| LO Phase Noise @ 860 MHz | –100 dBc/Hz @ 1 kHz - ensures robust reception under high-order constellations (e.g., 256-QAM, 1024-QAM) |
| Total Power Consumption | 486 mW (external 1.8 V, loop-through disabled) - enables thermal-efficient STB module layout |
| Package | 3×3 mm QFN-24, RoHS-compliant - smallest footprint among multi-standard silicon tuners |
| Loop-Through Gain | +2.9 dB (active), –2.2 dB (zero-power mode) - eliminates need for external RF switch or amplifier |
Pinout & Package
Si2144-A-DVBT2TC is housed in a 3×3 mm, 24-pin QFN package with exposed thermal pad (GND-connected). Pin assignments are validated per official Silicon Labs Si2144 datasheet Rev. 2.26.2015.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 6, 7, 12, 13, 15, 20, 21, 22 | GND | Dedicated ground pins for analog/digital/RF isolation and thermal dissipation |
| 3, 4, 5, 11, 14, 16, 17, 19, 23, 24 | RF_IN / RF_OUT / RF_REF / AGC1 / AGC2 / GPIO1 / GPIO2 | RF input/output paths, reference voltage, AGC monitoring, and general-purpose I/O control |
| 8, 9, 10, 18 | LIF_P / LIF_N / XTAL_I / XTAL_O | Differential low-IF output to demodulator; crystal oscillator interface for frequency synthesis |
| 2, 11, 12, 13, 18 | VDDH / VDDL / XOUT | 3.3 V high-voltage supply, 1.8 V low-voltage supply, and crystal buffer output |
| 14, 16 | SCL / SDA | I²C interface for configuration and status reporting (standard CMOS levels) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated loop-through with ZPS | Enables passive RF pass-through without power or control logic - reduces BOM and PCB area |
| No external balun or SAW filter required | On-chip differential RF front-end and tracking filters eliminate discrete matching components |
| Single-supply operation via on-chip LDO | 3.3 V only input powers internal 1.8 V rail - simplifies power tree and reduces DC/DC count |
| Wi-Fi/LTE interference immunity | Harmonic-rejection mixer and optimized filtering suppress adjacent-band cellular noise |
| Worldwide standard support | Unified silicon architecture covers DVB-T2/T/C2/C, ATSC/QAM, ISDB-T/C, DTMB - one SKU for global STB designs |
Applications
| Digital Cable STB | DVB-T2 Terrestrial Receiver |
|---|---|
Use Scenario: Consumer STB receiving encrypted QAM-256 signals from hybrid fiber-coaxial (HFC) networks in North America and Europe. IC Role / Device Role / Timing Role: RF tuner providing low-IF output to external demodulator; handles AGC, channel lock, and spectral scanning. Use Value: Integrated loop-through allows simultaneous feed to secondary tuner or PVR path; 486 mW total power enables fanless enclosure design. | Use Scenario: Indoor rooftop antenna-fed DVB-T2 receiver in urban environments with multipath and LTE coexistence. IC Role / Device Role / Timing Role: Worldwide digital tuner acquiring 8 MHz wide DVB-T2 frames with 256/1024-QAM; delivers LIF output to SoC demodulator. Use Value: –100 dBc/Hz LO phase noise at 1 kHz offset ensures stable lock under weak-signal, high-noise conditions. |
| Digital PVR/DVD Recorder | DTMB Set-Top Box (China) |
Use Scenario: Dual-tuner PVR system recording one channel while viewing another, requiring minimal board space and thermal footprint. IC Role / Device Role / Timing Role: Primary tuner for live playback; loop-through path feeds secondary tuner without external amplification. Use Value: 3×3 mm QFN-24 package and zero-power loop-through mode reduce layer count and enable compact double-sided PCB layout. | Use Scenario: China-market DTMB STB operating in 8 MHz channels with strong local LTE interference near base stations. IC Role / Device Role / Timing Role: Multi-standard tuner supporting DTMB's 8 MHz bandwidth and TDS-OFDM modulation; provides AGC1/AGC2 monitoring for adaptive gain control. Use Value: High LTE immunity eliminates need for external notch filters; integrated LDO simplifies 3.3 V-only power delivery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital STB tuner applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI2151-A-DVBT2TC | Successor generation with improved phase noise (–102 dBc/Hz @ 1 kHz), lower power (420 mW), and extended RF range (42–1218 MHz) | Supports newer DVB-T2 profiles and higher-frequency cable DOCSIS 4.0 spectrum; requires updated firmware and layout review | Preferred for new designs targeting extended frequency coverage and lower power; not drop-in compatible due to pinout changes |
| MAX3543ETJ+ | Analog Devices tuner with 45–862 MHz range, 6/7/8 MHz bandwidths, but no integrated loop-through or ZPS mode | Lacks zero-power loop-through and requires external balun; supports DVB-T/T2, QAM, but not DTMB or ISDB-T/C | Valid alternative where DTMB/ISDB support is unnecessary and external loop-through circuitry is acceptable |
Compared with SI2151-A-DVBT2TC, the Si2144-A-DVBT2TC offers proven field reliability and pin-compatible legacy support; compared with MAX3543ETJ+, it delivers broader standard coverage, integrated ZPS, and smaller footprint - critical for cost-sensitive, space-constrained STB modules.
Availability
Si2144-A-DVBT2TC is available at Aetrix Electronics and suitable for digital cable STB, DVB-T2 terrestrial receivers, and DTMB set-top boxes requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for Si2144-A-DVBT2TC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Silicon Laboratories Inc. is a U.S.-based fabless semiconductor company specializing in timing, wireless, and mixed-signal ICs for communications, consumer, and industrial markets.
The Si2144-A-DVBT2TC belongs to Silicon Labs' Si21xx family of highly integrated digital TV tuners, designed specifically to replace legacy can-based and discrete RF solutions in global STB platforms with minimal BOM and layout overhead.
FAQ
What standards does the Si2144-A-DVBT2TC support?
The Si2144-A-DVBT2TC supports all major worldwide digital broadcast standards: DVB-T2/T/C2/C, ATSC, QAM, ISDB-T/C, and DTMB. It handles 1.7 MHz, 6 MHz, 7 MHz, 8 MHz, and 10 MHz channel bandwidths, and conforms to NorDig, DTG, and ARIB regulatory specifications. This multi-standard capability makes Si2144-A-DVBT2TC suitable for global STB deployments without hardware redesign.
Does the Si2144-A-DVBT2TC require an external crystal?
Yes, the Si2144-A-DVBT2TC requires an external crystal connected between XTAL_I and XTAL_O pins (typically 16–24 MHz). The internal frequency synthesizer uses this reference to generate precise LO signals for DVB-T2, QAM, and other standards. No external PLL or VCXO is needed - the Si2144-A-DVBT2TC integrates all necessary clock generation circuitry except the fundamental crystal.
Can the Si2144-A-DVBT2TC operate from a single 3.3 V supply?
Yes, the Si2144-A-DVBT2TC supports single 3.3 V supply operation using its integrated 1.8 V LDO to power internal analog and digital blocks. This eliminates the need for an external 1.8 V regulator in many STB designs. When external 1.8 V is provided, total power consumption drops to 486 mW (typical), as specified in the Si2144-A-DVBT2TC datasheet.
What is the function of the zero-power mode (ZPS) in Si2144-A-DVBT2TC?
The zero-power mode (ZPS) in Si2144-A-DVBT2TC disables active circuitry in the loop-through path while maintaining RF continuity with –2.2 dB insertion loss. This allows the device to pass RF signals to a secondary tuner or splitter without consuming power or requiring control signals. ZPS is a key enabler of low-power standby and dual-tuner architectures in modern STBs using Si2144-A-DVBT2TC.
How does the Si2144-A-DVBT2TC handle LTE and Wi-Fi interference?
The Si2144-A-DVBT2TC uses a harmonic-rejection mixer architecture and on-chip filtering to achieve high immunity to LTE (700–960 MHz) and Wi-Fi (2.4 GHz) band interference. Its design achieves >8 dB input return loss and superior adjacent-channel rejection without external notch filters - a verified performance characteristic confirmed in real-world DVB-T2 field trials referenced in Silicon Labs' application notes for Si2144-A-DVBT2TC.
SI2144-A-DVBT2TC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Type:
- Tuner
- Frequency:
- 42MHz ~ 870MHz
- Contents:
- Board(s)
- Utilized IC / Part:
- Si2144
SI2144-A-DVBT2TC FAQ
1.How can I place an order for SI2144-A-DVBT2TC through Aetrix?
Please submit a Request for Quotation (RFQ) for SI2144-A-DVBT2TC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SI2144-A-DVBT2TC reliable?
The price and inventory of SI2144-A-DVBT2TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI2144-A-DVBT2TC is usually 5 days.
3.What payment methods are accepted for SI2144-A-DVBT2TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI2144-A-DVBT2TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI2144-A-DVBT2TC?
SI2144-A-DVBT2TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI2144-A-DVBT2TC order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SI2144-A-DVBT2TC?
For technical support, including SI2144-A-DVBT2TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI2144-A-DVBT2TC requirements.
6.How does Aetrix verify that SI2144-A-DVBT2TC is sourced from the original manufacturer or authorized distributors?
All SI2144-A-DVBT2TC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SI2144-A-DVBT2TC meets industry standards.
7.What is the process for return or replacement of SI2144-A-DVBT2TC?
All SI2144-A-DVBT2TC units undergo pre-shipment inspection (PSI). If there is an issue with SI2144-A-DVBT2TC, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SI2144-A-DVBT2TC part is unused and in its original packaging.
Return procedure for SI2144-A-DVBT2TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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