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NXP Semiconductors TDA19978AHV/15,557
- Part No.:
- TDA19978AHV/15,557
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 144-LQFP Exposed Pad
- Datasheet:
-
TDA19978AHV/15,557.pdf
- Description:
- IC INTFACE SPECIALIZED 144HLQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,759
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Product details
Overview
TDA19978AHV/15,557 from NXP Semiconductors is a quad HDMI 1.4a-compliant receiver IC with embedded EDID memory, auto-adaptive equalization supporting up to 25 m cable length at 2.05 GSPS, and OTP-stored HDCP 1.4 keys. It processes HDMI streams into RGB or YCbCr 4:4:4/4:2:2 outputs and supports Deep Color (10-/12-bit) up to 205 MHz TMDS clock for HDTV (1920×1080p60) and PC formats (UXGA 1600×1200p60).
For engineers reviewing the TDA19978AHV/15,557 datasheet, TDA19978AHV/15,557 pinout, TDA19978AHV/15,557 application, or TDA19978AHV/15,557 equivalent, key selection considerations include HDMI 1.4a compliance, quad-input channel independence, 1.8 V/3.3 V dual-supply operation, I²C-bus programmability of video timing (tsu(Q)/th(Q)), and support for HBR audio (up to 768 kHz) and SACD/DST streams.
Technical Context
The TDA19978AHV/15,557 integrates four independent HDMI receivers with per-channel termination resistance control, embedded oscillator (or external crystal option), and an audio PLL generating 128/256/512 × fs system clocks. Its video processing path includes format recognition (TV/PC), sync timing measurement, and ITU-R BT.601/BT.656-compliant YCbCr output formatting.
Audio handling includes eight-channel S/PDIF or I²S output capability, HBR stream demultiplexing across four outputs, DSD/DST packet extraction, and channel status decoding for multi-channel reception. All configuration-including color space conversion (RGB↔YCbCr), output bit depth (8/10/12-bit), and downsampling filters-is performed 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 bandwidth for 1080p60 Deep Color and WUXGA (1920×1200p60) reduced-blanking formats |
| Input Channels | Four independent HDMI inputs - enables seamless switching or parallel processing in AVRs, splitters, and multi-source displays |
| Output Formats | RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2 semi-planar (BT.601/BT.656) - provides flexible interface matching to downstream video processors or DACs |
| Power Supplies | 1.8 V core (VDDC), 3.3 V I/O (VDDH/VDDI/VDDO) - enables low-power digital logic while maintaining robust signal integrity on HDMI and video ports |
| Equalizer Support | Auto-adaptive per-link equalization - compensates for high-frequency loss in long cables (tested up to 25 m with 24 AWG) |
| HDCP Key Storage | One-Time Programmable (OTP) memory - prevents key extraction or cloning, meeting HDCP 1.4 repeater security requirements |
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 data lanes per input; each pair accepts 100 Ω terminated HDMI signals up to 205 MHz |
| VCLK, ACLK, SYSCLK | Video, audio, and system clock outputs | VCLK ≤165 MHz, ACLK ≤25 MHz, SYSCLK ≤50 MHz - synchronous clocks for pixel, audio sample, and master timing domains |
| VP[29:0], DE, HS/HREF, VS/VREF, CS/FREF | Parallel video output bus and timing signals | 29-bit LV-TTL video port with programmable setup/hold (tsu(Q)/th(Q)) - supports RGB/YCbCr 8/10/12-bit formats and flexible timing alignment |
| SDA/SCL, HSDAA/HSCLA, etc. | I²C-bus and DDC-bus interfaces | 5 V tolerant, 400 kbit/s - enables host MCU configuration and EDID read/write without level-shifting |
| XTALIN/MCLK, XTALOUT | Clock oscillator terminals | Supports embedded oscillator or external 27 MHz crystal - critical for stable audio PLL and HDCP engine timing |
Key Features
| Feature | Design Value |
|---|---|
| Quad HDMI 1.4a receiver with HDCP 1.4 repeater | Enables secure multi-source routing in AV receivers and HDMI switches without external HDCP management logic |
| Embedded auto-adaptive equalizer per input | Eliminates need for external signal conditioning ICs in long-cable applications (e.g., projector installations) |
| EDID memory: 253 shared + 3 bytes/input | Allows unique EDID configuration per HDMI port while minimizing memory overhead for multi-display systems |
| HBR audio support up to 768 kHz | Directly interfaces with high-resolution audio DACs for Dolby TrueHD and DTS-HD Master Audio playback |
| Programmable output bit depth and chroma subsampling | Permits runtime adaptation to downstream video processor capabilities (e.g., 4:2:2 for bandwidth-constrained paths) |
| Internal video/audio pattern generator | Facilitates factory test and debug without external signal sources, reducing production test complexity |
Applications
| Home Theater AVR | HDMI Splitter / Switch |
|---|---|
Use Scenario: Central audio/video hub receiving HDMI feeds from Blu-ray player, game console, and streaming box, then routing video to display and audio to amplifier. IC Role / Device Role / Timing Role: HDMI receiver and HDCP repeater managing four simultaneous encrypted streams with format translation and EDID arbitration. Use Value: Enables single-chip support for multi-source 1080p60 Deep Color and HBR audio, eliminating discrete repeater ICs and reducing BOM count. |
Use Scenario: Distribution of one HDMI source to multiple displays (e.g., digital signage in retail environments) with independent EDID emulation per output. IC Role / Device Role / Timing Role: Quad-input receiver with I²C-configurable video timing and per-port EDID memory, acting as front-end for downstream transmitters. Use Value: Supports dynamic EDID assignment and format adaptation per output path, improving compatibility across heterogeneous display fleets. |
| High-End LCD/Plasma TV | DVD/Blu-ray Recorder |
Use Scenario: Primary HDMI receiver in premium television supporting 1080p60, WUXGA, and 3D Frame Packing/Top-and-Bottom formats. IC Role / Device Role / Timing Role: Video digitizer converting HDMI to internal RGB/YCbCr with precise tsu(Q)/th(Q) timing control for panel interface synchronization. Use Value: Delivers accurate pixel-level timing alignment and Deep Color fidelity required for broadcast-grade image processing pipelines. |
Use Scenario: Recording device capturing HDMI video and multi-channel audio (including SACD/DST) from set-top boxes or gaming consoles. IC Role / Device Role / Timing Role: HDMI receiver extracting embedded audio streams (HBR, DSD, DST) and generating synchronized system clocks for recording SoC. Use Value: Native support for compressed DSD and high-bitrate audio eliminates need for external audio extractors, simplifying recorder architecture. |
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 built-in HDCP key storage (requires external EEPROM); lacks quad-input architecture and HBR audio support | Targeted at cost-sensitive single-source endpoints (e.g., monitors), not multi-input repeaters or AVRs | Select only when quad input, HDCP repeater capability, or HBR audio are not required |
| ADV7611WBCPZ | Quad-input HDMI 1.4 receiver with integrated CEC and analog video inputs; uses external HDCP keys; supports higher power consumption (1.5 W typical vs. 1.13 W at 1080p60) | Broadens system integration with legacy CVBS/component support but increases layout complexity and thermal load | Prefer when mixed analog/digital input support or CEC control is mandatory; otherwise TDA19978AHV/15,557 offers lower power and simpler HDCP provisioning |
Compared with Si2242-A-EVB and ADV7611WBCPZ, the TDA19978AHV/15,557 uniquely combines quad HDMI 1.4a inputs, on-die HDCP 1.4 keys, and HBR audio demux in a thermally optimized HLQFP144 package-making it optimal for space-constrained, security-critical multi-source consumer AV equipment where power efficiency and design simplicity are prioritized.
Availability
TDA19978AHV/15,557 is available at Aetrix Electronics and suitable for home theater AV receivers, HDMI distribution systems, high-end televisions, and professional video recorders requiring stable component supply, long-lifecycle support, and consistent HDMI 1.4a compliance.
Supply support for TDA19978AHV/15,557 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 markets.
The TDA19978AHV/15,557 belongs to NXP's HDMI receiver product line, designed specifically for high-fidelity, multi-source digital video and audio processing in premium consumer AV equipment with stringent HDCP and timing requirements.
FAQ
What HDMI standards does the TDA19978AHV/15,557 support?
The TDA19978AHV/15,557 fully complies with HDMI 1.4a, DVI 1.0, CEA-861-D, and HDCP 1.4 standards. It supports all HDTV formats up to 1920×1080p60, WUXGA (1920×1200p60) with reduced blanking, and 3D formats including Frame Packing and Top-and-Bottom. The TDA19978AHV/15,557 also implements HDCP 1.4 repeater functionality with OTP-stored keys for secure content redistribution.
Does the TDA19978AHV/15,557 require an external crystal?
No, the TDA19978AHV/15,557 includes an embedded oscillator and can operate without an external crystal. However, an external 27 MHz crystal may be connected via XTALIN/MCLK and XTALOUT pins to improve jitter performance and audio PLL stability-particularly important in high-fidelity audio applications. The TDA19978AHV/15,557 supports both configurations per its datasheet specifications.
How many HDMI inputs does the TDA19978AHV/15,557 support?
The TDA19978AHV/15,557 supports four independent HDMI inputs (labeled A–D), each with dedicated auto-adaptive equalization, termination resistance control, and EDID memory allocation. This quad-input architecture allows simultaneous reception and switching between multiple HDMI sources-essential for AV receivers, HDMI splitters, and multi-input displays. The TDA19978AHV/15,557 processes each input stream separately before multiplexing or routing.
What audio formats does the TDA19978AHV/15,557 decode and output?
The TDA19978AHV/15,557 supports IEC 60958/IEC 61937, One Bit Audio (SACD), DST (compressed DSD), and HBR audio streams. It delivers up to eight channels via four S/PDIF or I²S outputs at sampling rates up to 192 kHz, and HBR streams up to 768 kHz. The TDA19978AHV/15,557 also decodes channel status data and supports Dolby TrueHD and DTS-HD Master Audio via HBR packet handling.
What package type is used for the TDA19978AHV/15,557?
The TDA19978AHV/15,557 is housed in an HLQFP144 package: a plastic thermal-enhanced low-profile quad flat package with 144 leads, 20 mm × 20 mm body size, 1.4 mm height, and an exposed die pad (SOT612-3). This package provides superior thermal dissipation for sustained operation at 1080p60 Deep Color mode (1.63 W typical power dissipation) and supports standard surface-mount assembly processes.
TDA19978AHV/15,557 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 144-LQFP Exposed Pad
- Packaging:
- Tray
- 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/15,557 FAQ
1.How can I place an order for TDA19978AHV/15,557 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA19978AHV/15,557 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/15,557 reliable?
The price and inventory of TDA19978AHV/15,557 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA19978AHV/15,557 is usually 5 days.
3.What payment methods are accepted for TDA19978AHV/15,557?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA19978AHV/15,557 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA19978AHV/15,557?
TDA19978AHV/15,557 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA19978AHV/15,557 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/15,557?
For technical support, including TDA19978AHV/15,557 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA19978AHV/15,557 requirements.
6.How does Aetrix verify that TDA19978AHV/15,557 is sourced from the original manufacturer or authorized distributors?
All TDA19978AHV/15,557 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/15,557 meets industry standards.
7.What is the process for return or replacement of TDA19978AHV/15,557?
All TDA19978AHV/15,557 units undergo pre-shipment inspection (PSI). If there is an issue with TDA19978AHV/15,557, 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/15,557 part is unused and in its original packaging.
Return procedure for TDA19978AHV/15,557:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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