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NXP Semiconductors TDA18273HN/C1,518
- Part No.:
- TDA18273HN/C1,518
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Processing
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
TDA18273HN/C1,518.pdf
- Description:
- IC VIDEO SILICON TUNER 40HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:330
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Product details
Overview
TDA18273HN/C1,518 from NXP Semiconductors is a hybrid silicon tuner IC designed for terrestrial and cable TV front-ends, supporting both analog and digital standards including DVB-T2 and DVB-C2. It delivers a low-IF (LIF) output (3–5 MHz center frequency) with 1.7/6/7/8/10 MHz selectable channel bandwidths, operates from a single 3.3 V supply, and integrates full IF selectivity-eliminating external SAW filters.
For engineers reviewing the TDA18273HN/C1,518 datasheet, TDA18273HN/C1,518 pinout, TDA18273HN/C1,518 application, or TDA18273HN/C1,518 equivalent, this device is critical for high-immunity, alignment-free TV tuner designs requiring fast tuning, integrated AGC synchronization (VSYNC), and crystal oscillator buffering at 16 MHz.
Technical Context
The TDA18273HN/C1,518 implements a fractional-N (FRAC-N) PLL with LC-VCO and integrated loop filter for precise RF synthesis across 42–870 MHz. Its architecture includes dual-band RF input switching (VHF/UHF), band-split filtering, and IR mixer-based image rejection exceeding 57.5 dB.
It features self-synchronizing AGC with five independent control paths (AGC1–AGC5), integrated power level detector (PLD), and temperature-compensated LNA gain control. The IF stage uses on-chip H3H5/wireless filters and supports LIF output to external demodulators via differential IFP/IFN pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 42–870 MHz - Covers full terrestrial and cable TV spectrum without external band-switching circuitry. |
| Tuner Noise Figure | Typ. 4.0 dB - Ensures high sensitivity in weak-signal reception environments. |
| Phase Jitter (250 Hz–4 MHz) | Typ. 0.4° - Meets stringent timing stability requirements for DVB-T2/C2 demodulation. |
| Image Rejection | Min. 57.5 dB - Suppresses adjacent-channel interference without external image-reject filters. |
| LIF Center Frequency | 3–5 MHz - Configurable low-IF output compatible with standard analog/digital demodulator inputs. |
| Channel Bandwidths | 1.7 / 6 / 7 / 8 / 10 MHz - Supports global analog NTSC/PAL/SECAM and digital DVB-T/T2/C/C2 channel plans. |
| Supply Voltage | 3.3 V ±10% - Single-rail operation simplifies power design and reduces BOM count. |
| ESD Rating (HBM) | ±2 kV - Robust handling during assembly and field operation in consumer electronics environments. |
Pinout & Package
Package: HVQFN40 (SOT618-1), 6 × 6 × 0.85 mm, thermally enhanced, no leads, 40-terminal quad flat package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RFIN | RF Input | Differential RF input port accepting 42–870 MHz signals; internally matched to 75 Ω. |
| IFP / IFN | Differential IF Output | Low-IF differential output (3–5 MHz center) driving external demodulator with 100 Ω impedance. |
| SCL / SDA | I²C Bus Interface | 3.3 V-compatible bidirectional control interface for configuration and status readback. |
| VTUNE | VCO Tuning Voltage | Analog voltage input controlling LC-VCO frequency; internal DAC eliminates external tuning components. |
| VSYNC | Vertical Sync Detector Output | Open-drain signal synchronized to video frame timing; enables self-AGC mode without external sync source. |
| XTALP / XTALN | Cry stal Oscillator Input | Differential crystal connection for 16 MHz reference; supports single-crystal architecture via internal buffer. |
| IRQ | Interrupt Request | Active-low interrupt signaling lock status, AGC saturation, or PLD threshold crossing. |
| CP | Charge Pump Output | PLL charge pump node; requires external loop filter for FRAC-N VCO stabilization. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated IF selectivity | On-die H3H5/wireless filters replace external SAW components, reducing board area and calibration effort. |
| Self-AGC synchronization (VSYNC) | Eliminates need for external vertical sync signal; enables autonomous gain adaptation per video frame. |
| Crystal oscillator output buffer (16 MHz) | Drives external clock distribution network directly-no additional buffer IC required in single-crystal systems. |
| Worldwide multistandard support | Hardware-configurable for DVB-T/T2/C/C2, ATSC, ISDB-T, and analog PAL/NTSC/SECAM without firmware change. |
| Strong spurious immunity | Integrated CB trap and surge protection suppress citizen band interference and ESD-induced glitches. |
| Alignment-free operation | Factory-trimmed VCO and AGC loops remove production line tuning steps, lowering manufacturing cost. |
Applications
| Digital Terrestrial TV Set-Top Box | Analog/Cable Hybrid Headend |
|---|---|
Use Scenario: Consumer STB receiving DVB-T2 and legacy analog broadcasts in mixed-signal environments. IC Role / Device Role / Timing Role: RF front-end tuner converting UHF/VHF signals to low-IF for downstream demodulation and decoding. Use Value: Enables single-board support for legacy and next-gen broadcast standards with <5 ms tuning time and no external SAW filters. |
Use Scenario: Cable operator headend equipment aggregating analog and digital channels before QAM modulation. IC Role / Device Role / Timing Role: High-linearity tuner providing stable LIF output to multi-channel ADCs with minimal intermodulation distortion. Use Value: Achieves CTB > −60 dBc and CSO > −55 dBc under dense channel loading, ensuring clean upstream signal integrity. |
| Professional Broadcast Monitor | DTV Integrated Digital TV |
Use Scenario: Field-deployable monitoring unit verifying signal quality across terrestrial/cable networks. IC Role / Device Role / Timing Role: Precision tuner with calibrated PLD and temperature sensor for real-time RF level and thermal diagnostics. Use Value: On-chip temperature sensor and junction temp calculation (via I²C) enable automatic gain compensation over −20 °C to +85 °C ambient. |
Use Scenario: Integrated digital TV chassis requiring compact, low-power tuner with minimal external components. IC Role / Device Role / Timing Role: System-on-module tuner delivering LIF to SoC demodulator with shared 16 MHz crystal and I²C control. Use Value: Reduces component count by integrating oscillators, AGC, IF filters, and power detection-cutting PCB area by >40% vs. discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hybrid TV tuner applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX3542ETJ+T | Higher noise figure (4.8 dB typ), supports only DVB-T/C (not T2/C2), requires external VCO loop filter. | Limited to legacy digital standards; lacks VSYNC and self-AGC capability. | Choose when DVB-T2/C2 compliance is not required and cost-sensitive legacy designs dominate. |
| SI2151-A10-GM | Single-ended RF input, narrower RF range (42–1002 MHz but lower UHF sensitivity), no integrated crystal buffer. | Requires external 16 MHz buffer and separate sync source; less robust against field interference. | Prefer where space-constrained designs accept trade-offs in spurious immunity and integration level. |
Compared with MAX3542ETJ+T and SI2151-A10-GM, the TDA18273HN/C1,518 provides broader multistandard coverage (including DVB-T2/C2), superior phase jitter (0.4° vs. ≥0.8°), and full self-contained AGC synchronization-reducing system-level timing dependencies and external component count.
Availability
TDA18273HN/C1,518 is available at Aetrix Electronics and suitable for digital terrestrial TV set-top boxes, professional broadcast monitors, and integrated digital TV chassis requiring stable component supply, long-lifecycle support, and RoHS-compliant silicon tuners.
Supply support for TDA18273HN/C1,518 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.
The TDA18273HN/C1,518 belongs to NXP's Silicon Tuner product line, engineered specifically for high-performance, multistandard broadcast reception in cost-sensitive, high-volume TV and STB platforms.
FAQ
What is the RF input frequency range supported by the TDA18273HN/C1,518?
The TDA18273HN/C1,518 supports an RF input frequency range of 42 MHz to 870 MHz, covering full VHF and UHF bands for terrestrial and cable TV reception. This range accommodates all major analog (PAL, NTSC, SECAM) and digital (DVB-T/T2, DVB-C/C2, ISDB-T) broadcast standards without external band-switching circuitry.
Does the TDA18273HN/C1,518 require external SAW filters for IF selectivity?
No, the TDA18273HN/C1,518 integrates full IF selectivity using on-chip H3H5/wireless filters, eliminating the need for external SAW filters. This integration reduces bill-of-materials cost, PCB area, and calibration complexity while maintaining channel selectivity across 1.7–10 MHz bandwidths.
What is the function of the VSYNC pin on the TDA18273HN/C1,518?
The VSYNC pin on the TDA18273HN/C1,518 outputs a vertical synchronization signal derived from incoming video frames, enabling self-AGC synchronization mode. This allows the TDA18273HN/C1,518 to autonomously adapt gain per frame without requiring an external sync source, simplifying system timing architecture.
Can the TDA18273HN/C1,518 be used in DVB-T2 compliant systems?
Yes, the TDA18273HN/C1,518 is explicitly designed and documented as ready for DVB-T2 and DVB-C2 applications. Its low phase jitter (0.4° typ), wide channel bandwidth support (up to 10 MHz), and robust image rejection (>57.5 dB) meet the stringent RF performance requirements of second-generation digital broadcast standards.
What package type is used for the TDA18273HN/C1,518?
The TDA18273HN/C1,518 uses the HVQFN40 (SOT618-1) package: a 6 × 6 × 0.85 mm thermally enhanced very thin quad flat no-lead package with 40 terminals. This package supports high-density PCB layouts and efficient thermal dissipation in compact TV and STB designs.
TDA18273HN/C1,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Tuner
- Applications:
- Professional Video
- Standards:
- DVB-T2, DVB-C2
- Control Interface:
- I2C
- Voltage - Supply:
- 3.3V ~ 3.6V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 40-HVQFN (6x6)
TDA18273HN/C1,518 FAQ
1.How can I place an order for TDA18273HN/C1,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA18273HN/C1,518 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 TDA18273HN/C1,518 reliable?
The price and inventory of TDA18273HN/C1,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA18273HN/C1,518 is usually 5 days.
3.What payment methods are accepted for TDA18273HN/C1,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA18273HN/C1,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA18273HN/C1,518?
TDA18273HN/C1,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA18273HN/C1,518 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 TDA18273HN/C1,518?
For technical support, including TDA18273HN/C1,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA18273HN/C1,518 requirements.
6.How does Aetrix verify that TDA18273HN/C1,518 is sourced from the original manufacturer or authorized distributors?
All TDA18273HN/C1,518 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 TDA18273HN/C1,518 meets industry standards.
7.What is the process for return or replacement of TDA18273HN/C1,518?
All TDA18273HN/C1,518 units undergo pre-shipment inspection (PSI). If there is an issue with TDA18273HN/C1,518, 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 TDA18273HN/C1,518 part is unused and in its original packaging.
Return procedure for TDA18273HN/C1,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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