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NXP Semiconductors TDA19978AHV/15C183
- Part No.:
- TDA19978AHV/15C183
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 144-LQFP Exposed Pad
- Datasheet:
-
TDA19978AHV/15C183.pdf
- Description:
- IC INTFACE SPECIALIZED 144HLQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,133
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Product details
Overview
TDA19978AHV/15C183 from NXP Semiconductors is a quad HDMI 1.4a-compliant receiver IC with embedded EDID memory, auto-adaptive equalizer (supporting up to 25 m cable length at 2.05 GS/s), OTP-stored HDCP 1.4 keys, and dual-supply operation (1.8 V core / 3.3 V I/O). It processes HDMI video/audio streams into RGB or YCbCr digital outputs for high-end TV, AV receivers, and HDMI splitters.
For engineers reviewing the TDA19978AHV/15C183 datasheet, TDA19978AHV/15C183 pinout, TDA19978AHV/15C183 application, or TDA19978AHV/15C183 equivalent, key selection considerations include HDMI 1.4a compliance, quad-input support at up to 205 MHz TMDS clock, 10-/12-bit Deep Color capability, I²C-configurable output timing (tsu(Q)/th(Q)), and HLQFP144 package compatibility with thermal management requirements.
Technical Context
The TDA19978AHV/15C183 integrates four independent HDMI receivers with per-link auto-adaptive equalization and HDCP 1.4 repeater functionality. Its internal audio PLL generates system clocks (128/256/512 × fs) to drive external DACs like the UDA1334BTS without integrated PLLs.
Video processing includes programmable RGB↔YCbCr conversion, selectable 4:4:4 or 4:2:2 ITU-R BT.601/BT.656 output formats, and downsampling-by-two filters on Cb/Cr channels. All configuration and status monitoring occur via a 5 V-tolerant, 400 kbit/s I²C-bus interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| HDMI Compliance | HDMI 1.4a, DVI 1.0, CEA-861-D, HDCP 1.4 - ensures interoperability with certified source/sink devices and content protection enforcement. |
| Max TMDS Clock | 205 MHz - supports full 1080p60, WUXGA (1920×1200p60 reduced blanking), and UXGA (1600×1200p60) video formats. |
| Input Channels | Four independent HDMI inputs - enables multi-source switching in AVRs, projectors, and HDMI matrix splitters without external muxing. |
| Color Depth | 8/10/12-bit per color - enables Deep Color mode for enhanced gamut representation in high-end displays and mastering systems. |
| Power Supplies | 1.8 V (core/VDDC), 3.3 V (HDMI I/O/VDDH, input/VDDI, output/VDDO) - requires dual-rail PCB design with tight regulation (±5% tolerance). |
| EDID Memory | 253 shared bytes + 3 dedicated bytes per input - allows unique EDID configuration per HDMI port for source-specific handshake behavior. |
| Equalizer Range | Supports 0.5 mm (24 AWG) cables up to 25 m at 2.05 GS/s - eliminates need for external redrivers in mid-range consumer AV equipment. |
Pinout & Package
Package: HLQFP144 (plastic thermal enhanced low profile quad flat package; 20 × 20 × 1.4 mm body with exposed die pad; SOT612-3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RXxA+, RXxA− RXxB+, RXxB− RXxC+, RXxC− RXxD+, RXxD− |
HDMI differential input pairs (A–D) | Four independent TMDS channel A/B/C/D differential inputs per HDMI link; require 100 Ω termination and controlled impedance routing. |
| VCLK, ACLK, SYSCLK | Digital clock outputs | VCLK (max 165 MHz) for video timing; ACLK (max 25 MHz) for audio; SYSCLK (128/256/512 × fs) for external DAC synchronization. |
| VP[29:0], DE, HS/HREF, VS/VREF, CS/FREF | Parallel video output bus | 29-bit LV-TTL video data bus with sync signals supporting RGB 4:4:4 or YCbCr 4:2:2 semi-planar formats per ITU-R BT.601/BT.656. |
| SDA, SCL, HSDAA, HSCLA, etc. | I²C and DDC interfaces | 5 V-tolerant I²C slave interface (up to 400 kbit/s); separate DDC-bus inputs per HDMI port for EDID readout during hot-plug detection. |
| XTALIN/MCLK, XTALOUT | Crystal oscillator interface | Supports embedded oscillator or external crystal (e.g., 27 MHz) for precise clock generation; critical for HDCP and audio PLL stability. |
Key Features
| Feature | Design Value |
|---|---|
| HDCP 1.4 repeater capability | Enables secure daisy-chaining of downstream sinks while maintaining content protection integrity across multiple hops. |
| Auto-adaptive equalizer per HDMI link | Compensates for signal loss across varying cable lengths and types without manual tuning or external components. |
| I²C-adjustable video port timing (tsu(Q)/th(Q)) | Allows fine-grained alignment of video data capture relative to clock edges-critical for reliable interface timing margin in FPGA/ASIC receivers. |
| Internal pattern generator | Supports factory test and debug without external video sources-reduces validation time during board bring-up and production testing. |
| Multi-format audio output | Delivers up to eight-channel S/PDIF or I²S (192 kHz) plus HBR (768 kHz) and DSD/DST streams-enables single-chip audio routing in premium AV receivers. |
Applications
| Home Theater AVR | HDMI Splitter / Matrix |
|---|---|
Use Scenario: Audio/video receiver aggregating HDMI sources (Blu-ray, game console, streaming box) and distributing synchronized video/audio to display and speaker systems. IC Role / Device Role / Timing Role: HDMI receiver front-end handling HDCP authentication, format detection, and parallel RGB/YCbCr output for downstream video processing and audio extraction. Use Value: Quad-input architecture eliminates need for external HDMI switches; embedded EDID and auto-equalization simplify integration with long cable runs and mixed-source ecosystems. |
Use Scenario: Distribution of one or more HDMI sources to multiple displays (e.g., digital signage, control rooms) with format preservation and HDCP passthrough. IC Role / Device Role / Timing Role: Central HDMI sink that terminates HDCP, reads EDID from each display, and regenerates clean HDMI streams with minimal latency and jitter. Use Value: Built-in repeater capability and per-port EDID memory enable plug-and-play compatibility with heterogeneous displays; no firmware updates required for new monitor models. |
| High-End LCD/Plasma TV | Professional Video Digitizer |
Use Scenario: Primary HDMI receiver in premium flat-panel TVs supporting 1080p60, Deep Color, and 3D formats (Frame Packing, Top-and-Bottom). IC Role / Device Role / Timing Role: Format-agnostic video digitizer converting HDMI streams to internal RGB/YCbCr pixel data with programmable color space conversion and blanking measurement. Use Value: Accurate sync timing measurements and improved PC/TV format recognition ensure stable lock on non-standard resolutions (e.g., UXGA, WUXGA) without user intervention. |
Use Scenario: High-fidelity video acquisition system capturing HDMI signals for broadcast monitoring, medical imaging, or industrial inspection. IC Role / Device Role / Timing Role: Precision video digitizer providing LV-TTL parallel output with configurable tsu(Q)/th(Q) timing and 10-/12-bit depth for accurate pixel-level analysis. Use Value: Downsampled 4:2:2 YCbCr output reduces bandwidth for storage/transmission; internal pattern generator enables calibration traceability without external test equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si2242-A-EVB | Single-input HDMI 1.4 receiver; no embedded EDID or HDCP key storage; requires external microcontroller for HDCP management. | Limited to single-source systems; lacks quad-input flexibility and auto-equalization range (max 15 m). | Select when cost-sensitive designs require basic HDMI 1.4 reception without repeater or multi-port complexity. |
| ADV7611BSWZ | Quad-input HDMI 1.4 receiver with integrated CEC and superior audio packet extraction; supports HDMI 2.0 timing but not HDCP 2.x. | Better suited for systems requiring CEC control and advanced audio metadata parsing; higher power consumption (1.4 W active). | Choose for CEC-enabled AVRs or when deeper audio stream analysis (e.g., Dolby Atmos metadata) is required beyond TDA19978AHV/15C183's HBR/DSD capabilities. |
Compared with Si2242-A-EVB and ADV7611BSWZ, the TDA19978AHV/15C183 uniquely balances quad-input HDMI 1.4a reception, on-chip HDCP 1.4 key storage, and auto-adaptive equalization for 25 m cables-making it optimal for mid-to-high-tier AVRs and splitters where security, cable reach, and multi-source aggregation are co-priorities.
Availability
TDA19978AHV/15C183 is available at Aetrix Electronics and suitable for home theater AV receivers, HDMI distribution systems, high-end flat-panel TVs, and professional video digitizers requiring stable component supply, long-cable HDMI signal integrity, and HDCP 1.4 repeater functionality.
Supply support for TDA19978AHV/15C183 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 electronics.
The TDA19978AHV/15C183 belongs to NXP's HDMI receiver product line, designed specifically for high-fidelity, multi-source HDMI signal acquisition in premium audiovisual equipment with emphasis on HDCP security, cable reach, and format flexibility.
FAQ
What HDMI standards does the TDA19978AHV/15C183 support?
The TDA19978AHV/15C183 supports HDMI 1.4a, DVI 1.0, CEA-861-D, and HDCP 1.4. It handles all HDTV formats up to 1920 × 1080p at 50/60 Hz, WUXGA (1920 × 1200p at 60 Hz) with reduced blanking, and PC formats up to UXGA (1600 × 1200p at 60 Hz). The TDA19978AHV/15C183 does not support HDMI 2.0 or later standards including HDR or Dynamic Metadata.
Does the TDA19978AHV/15C183 include embedded EDID memory?
Yes, the TDA19978AHV/15C183 includes embedded EDID memory consisting of 253 shared bytes plus three dedicated bytes per HDMI input (A–D). This allows independent EDID configuration for each of the four HDMI ports, enabling source-specific handshake behavior in multi-display or multi-source systems using the TDA19978AHV/15C183.
What is the maximum supported cable length for the TDA19978AHV/15C183?
The TDA19978AHV/15C183's auto-adaptive equalizer supports laboratory-tested cable lengths up to 25 meters using a 0.5 mm (24 AWG) cable at 2.05 gigasamples per second. Performance depends on cable quality and signal integrity; actual usable length in production systems may vary based on EMI, connector quality, and layout practices around the TDA19978AHV/15C183.
How is HDCP implemented in the TDA19978AHV/15C183?
HDCP keys are stored in non-volatile One Time Programmable (OTP) memory inside the TDA19978AHV/15C183, ensuring maximum security against extraction or cloning. The device implements HDCP 1.4 with repeater capability, allowing authenticated content to be retransmitted to downstream sinks while maintaining chain integrity-fully supported in hardware without external key management for the TDA19978AHV/15C183.
What power supply voltages does the TDA19978AHV/15C183 require?
The TDA19978AHV/15C183 requires three distinct supply rails: 1.8 V for core logic (VDDC), 3.3 V for HDMI I/O (VDDH), and 3.3 V for input/output buffers (VDDI/VDDO). Each rail has ±5% tolerance (e.g., VDDH: 3.135 V to 3.465 V). Proper decoupling and sequencing-especially powering VDDC before VDDH-is mandatory per the TDA19978AHV/15C183 datasheet to ensure reliable startup and operation.
TDA19978AHV/15C183 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 144-LQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- HDTV
- Interface:
- HDMI
- Voltage - Supply:
- 1.8V, 3.3V
- Supplier Device Package:
- 144-HLQFP (20x20)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TDA19978AHV/15C183 FAQ
1.How can I place an order for TDA19978AHV/15C183 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA19978AHV/15C183 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 TDA19978AHV/15C183 reliable?
The price and inventory of TDA19978AHV/15C183 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA19978AHV/15C183 is usually 5 days.
3.What payment methods are accepted for TDA19978AHV/15C183?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA19978AHV/15C183 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA19978AHV/15C183?
TDA19978AHV/15C183 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA19978AHV/15C183 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 TDA19978AHV/15C183?
For technical support, including TDA19978AHV/15C183 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA19978AHV/15C183 requirements.
6.How does Aetrix verify that TDA19978AHV/15C183 is sourced from the original manufacturer or authorized distributors?
All TDA19978AHV/15C183 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 TDA19978AHV/15C183 meets industry standards.
7.What is the process for return or replacement of TDA19978AHV/15C183?
All TDA19978AHV/15C183 units undergo pre-shipment inspection (PSI). If there is an issue with TDA19978AHV/15C183, 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 TDA19978AHV/15C183 part is unused and in its original packaging.
Return procedure for TDA19978AHV/15C183:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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