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NXP Semiconductors TDA19978AHV/15,518
- Part No.:
- TDA19978AHV/15,518
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 144-LQFP Exposed Pad
- Datasheet:
-
TDA19978AHV/15,518.pdf
- Description:
- IC INTFACE SPECIALIZED 144HLQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,766
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Product details
Overview
TDA19978AHV/15,518 from NXP Semiconductors is a quad HDMI 1.4a-compliant receiver IC with embedded EDID memory and auto-adaptive equalizers on all four inputs, supporting up to 205 MHz TMDS clock, 1080p60 video resolution, and 12-bit Deep Color processing. It converts encrypted or unencrypted HDMI streams into RGB or YCbCr digital outputs (4:4:4 or 4:2:2) for integration in high-end AV receivers and HDMI splitters.
For engineers reviewing the TDA19978AHV/15,518 datasheet, TDA19978AHV/15,518 pinout, TDA19978AHV/15,518 application, or TDA19978AHV/15,518 equivalent, key selection considerations include HDMI 1.4a compliance, HDCP 1.4 repeater capability, 1.8 V/3.3 V dual-supply operation, LV-TTL output compatibility, and I²C-bus programmability of video timing parameters (tsu(Q)/th(Q)).
Technical Context
The TDA19978AHV/15,518 implements four independent HDMI receiver channels with integrated termination resistance control, adaptive equalization per link, and HDCP 1.4 decryption with OTP-stored keys. Its video processing pipeline supports ITU-R BT.601 and BT.656-aligned YCbCr 4:2:2 semi-planar output formats and RGB 4:4:4 conversion via I²C-configurable color space mapping.
Audio processing includes HBR stream support up to 768 kHz across four S/PDIF or I²S outputs, DSD/DST decoding for SACD, and system clock generation at 128/256/512 × fs - enabling direct interface with audio DACs like the UDA1334BTS without external PLLs.
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 - enables full 1080p60, WUXGA (1920×1200p60 RB), and UXGA (1600×1200p60) PC resolutions |
| Color Depth Support | 8-bit, 10-bit, or 12-bit per channel - selectable via I²C; 12-bit only in 4:4:4 mode for enhanced gamut fidelity |
| Power Supplies | 1.8 V core (VDDC), 3.3 V I/O (VDDH/VDDI/VDDO) - dual-rail CMOS design reduces noise coupling between analog/digital domains |
| Video Output Formats | RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2 semi-planar (BT.601/BT.656) - configurable timing and downsampling filters for flexible SoC interfacing |
| Audio Outputs | Up to 4 S/PDIF or I²S streams (8 channels total), HBR up to 768 kHz - supports Dolby TrueHD and DTS-HD Master Audio demuxing |
| EDID Memory | 253 shared bytes + 3 dedicated bytes per input - allows independent display identification per HDMI port |
Pinout & Package
Package: HLQFP144 - thermally enhanced low-profile quad flat package, 20 mm × 20 mm × 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 receiver channels with auto-adaptive equalization; each pair accepts up to 205 MHz signals |
| VCLK, ACLK, SYSCLK | Video, audio, and system clock outputs | VCLK max 165 MHz (video pixel clock), ACLK max 25 MHz (audio sample clock), SYSCLK max 50 MHz (128/256/512 × fs) |
| VP[29:0], DE, HS/HREF, VS/VREF, CS/FREF | Parallel video output bus and timing signals | 29-bit LV-TTL video data bus with programmable setup/hold timing (tsu(Q)/th(Q)) for SoC synchronization |
| SDA/SCL, HSDAA/HSCLA, etc. | I²C-bus slave interfaces | 5 V tolerant up to 400 kbit/s; used for configuration, EDID access, HDCP management, and color gamut metadata readout |
| XTALIN/MCLK, XTALOUT | Clock oscillator terminals | Supports embedded oscillator or external crystal (e.g., 27 MHz) for precise clock synthesis and jitter reduction |
Key Features
| Feature | Design Value |
|---|---|
| HDCP Repeater Capability | Enables downstream HDCP authentication chaining in AVRs and splitters without requiring external repeater logic |
| Auto-Adaptive Equalization | Compensates for signal degradation over 25 m of 0.5 mm (24 AWG) cable at 2.05 GS/s, reducing need for external redrivers |
| Embedded OTP HDCP Key Storage | Eliminates external secure memory; keys permanently stored during manufacturing for tamper-resistant content protection |
| Programmable Video Timing | I²C-adjustable tsu(Q) and th(Q) values allow fine-tuning of video port setup/hold margins to match SoC input requirements |
| Multi-Standard Audio Support | Native decoding of IEC 60958/61937, One Bit Audio (SACD), DST (compressed DSD), and HBR streams - simplifies audio subsystem design |
Applications
| Home Theater AVR | HDMI Splitter / Matrix Switch |
|---|---|
Use Scenario: Central audio/video receiver aggregating multiple HDMI sources (Blu-ray, game console, streaming box) and routing to display and amplifier. IC Role / Device Role / Timing Role: HDMI receiver front-end performing HDCP decryption, format recognition, and RGB/YCbCr reformatting before audio/video separation. Use Value: Supports simultaneous 4-input switching with HDCP 1.4 repeater functionality and deep color passthrough - essential for premium home theater certification. |
Use Scenario: Distribution of single HDMI source to multiple displays (e.g., living room + bedroom TVs) with independent EDID management per output. IC Role / Device Role / Timing Role: Quad-input receiver with per-port EDID memory and I²C-controllable video timing, enabling dynamic source selection and sink emulation. Use Value: Eliminates need for external EDID EEPROMs and allows firmware-based port arbitration - reducing BOM count and layout complexity. |
| High-End LCD/Plasma TV | DVD/Blu-ray Recorder |
Use Scenario: Main HDMI receiver in large-screen TVs supporting 1080p60, WUXGA, and 3D formats (Frame Packing, Top-and-Bottom). IC Role / Device Role / Timing Role: Format-aware receiver with sync timing measurement and blanking detection for accurate TV/PC resolution classification and scaling engine handoff. Use Value: Enables reliable auto-detection of interlaced vs progressive, TV vs PC timings, and reduced-blanking modes - critical for seamless UI and video playback. |
Use Scenario: Recording device capturing HDMI content with embedded audio (Dolby TrueHD, DTS-HD) while preserving HDCP-compliant metadata. IC Role / Device Role / Timing Role: HDMI receiver with HBR and DSD/DST packet extraction, feeding decoded audio streams to internal recording codec and video to encoder. Use Value: Direct support for SACD/DST audio packet parsing and HBR demuxing avoids external audio processors - lowering latency and power consumption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si2240-A10-GM | Single-input HDMI 1.4 receiver; no built-in EDID memory; requires external HDCP key storage | Limited to one source; lacks quad-input aggregation and repeater capability | Use where cost-sensitive single-source designs omit HDCP repeater or multi-input routing |
| ADV7611WBCPZ | Quad-input HDMI 1.4 receiver with integrated CEC and 3D support; uses 1.2 V/3.3 V supplies instead of 1.8 V/3.3 V | Includes CEC controller and more advanced 3D format handling; higher power consumption in active mode | Prefer when CEC command routing or extended 3D metadata handling is required beyond TDA19978AHV/15,518's capabilities |
Compared with Si2240-A10-GM and ADV7611WBCPZ, the TDA19978AHV/15,518 uniquely combines quad HDMI 1.4a inputs, OTP-based HDCP 1.4 repeater security, and 1.8 V/3.3 V dual-supply efficiency - making it optimal for space-constrained, multi-source consumer AV equipment requiring robust content protection and minimal external components.
Availability
TDA19978AHV/15,518 is available at Aetrix Electronics and suitable for HDMI splitters, home theater AVRs, and high-end LCD/Plasma TVs requiring stable component supply, long-lifecycle assurance, and traceable sourcing for production programs.
Supply support for TDA19978AHV/15,518 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 electronics.
The TDA19978AHV/15,518 belongs to NXP's HDMI receiver product line, designed specifically for high-fidelity, multi-source AV equipment requiring HDCP-compliant signal acquisition, format flexibility, and low-power digital video processing.
FAQ
What HDMI standards does the TDA19978AHV/15,518 support?
The TDA19978AHV/15,518 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 × 1200p60 with reduced blanking), and PC formats up to UXGA (1600 × 1200p60). The TDA19978AHV/15,518 also supports 3D formats including Frame Packing and Top-and-Bottom at 1080p resolution.
Does the TDA19978AHV/15,518 include embedded memory for EDID and HDCP keys?
Yes, the TDA19978AHV/15,518 integrates 253 bytes of shared EDID memory plus three dedicated bytes per HDMI input, and stores HDCP keys in non-volatile One Time Programmable (OTP) memory. This eliminates the need for external EEPROMs or secure memory chips, enhancing system security and reducing BOM count. The TDA19978AHV/15,518 leverages this embedded OTP to enable HDCP 1.4 repeater functionality without external key management.
What video output formats and color depths does the TDA19978AHV/15,518 support?
The TDA19978AHV/15,518 supports RGB 4:4:4, YCbCr 4:4:4, and YCbCr 4:2:2 semi-planar outputs aligned with ITU-R BT.601 and BT.656 standards. Color depth is selectable via I²C: 8-bit and 10-bit in all formats, and 12-bit only in 4:4:4 mode. The TDA19978AHV/15,518 also provides programmable downsampling filters for Cb/Cr in 4:2:2 mode and adjustable video port timing (tsu(Q)/th(Q)).
How does the auto-adaptive equalizer in the TDA19978AHV/15,518 improve signal integrity?
The TDA19978AHV/15,518 features an embedded auto-adaptive equalizer on each of its four HDMI inputs, compensating for high-frequency loss in long cables. Laboratory testing confirms reliable operation with up to 25 m of 0.5 mm (24 AWG) cable at 2.05 gigasamples per second. This capability reduces dependency on external redriver ICs and extends reach in AV distribution systems. The TDA19978AHV/15,518 dynamically adjusts equalization per link based on incoming signal quality.
What audio capabilities does the TDA19978AHV/15,518 provide?
The TDA19978AHV/15,518 supports IEC 60958/61937, One Bit Audio (SACD), DST (compressed DSD), and HBR streams up to 768 kHz across up to four S/PDIF or I²S outputs (eight channels total). It includes a channel status decoder, HBR demuxing for Dolby TrueHD and DTS-HD Master Audio, and system clock outputs (128/256/512 × fs) compatible with audio DACs such as the UDA1334BTS. The TDA19978AHV/15,518 delivers full audio packet extraction without requiring external audio processors.
TDA19978AHV/15,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 144-LQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- HDTV
- Interface:
- HDMI
- Voltage - Supply:
- 1.8V, 3.3V
- Supplier Device Package:
- 144-HLQFP (20x20)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TDA19978AHV/15,518 FAQ
1.How can I place an order for TDA19978AHV/15,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA19978AHV/15,518 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 TDA19978AHV/15,518 reliable?
The price and inventory of TDA19978AHV/15,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA19978AHV/15,518 is usually 5 days.
3.What payment methods are accepted for TDA19978AHV/15,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA19978AHV/15,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA19978AHV/15,518?
TDA19978AHV/15,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA19978AHV/15,518 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 TDA19978AHV/15,518?
For technical support, including TDA19978AHV/15,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA19978AHV/15,518 requirements.
6.How does Aetrix verify that TDA19978AHV/15,518 is sourced from the original manufacturer or authorized distributors?
All TDA19978AHV/15,518 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 TDA19978AHV/15,518 meets industry standards.
7.What is the process for return or replacement of TDA19978AHV/15,518?
All TDA19978AHV/15,518 units undergo pre-shipment inspection (PSI). If there is an issue with TDA19978AHV/15,518, 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 TDA19978AHV/15,518 part is unused and in its original packaging.
Return procedure for TDA19978AHV/15,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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