My Inquiry
My Account
NXP Semiconductors TDA19978AHV/15/C18
- Part No.:
- TDA19978AHV/15/C18
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 144-LQFP Exposed Pad
- Datasheet:
-
TDA19978AHV/15/C18.pdf
- Description:
- IC INTFACE SPECIALIZED 144HLQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,162
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TDA19978AHV/15/C18 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), and OTP-stored HDCP 1.4 keys. It processes HDMI streams into RGB or YCbCr 4:4:4/4:2:2 outputs, supports Deep Color (10-/12-bit), and delivers system clock outputs (128/256/512 × fs) for audio DAC interfacing - deployed in high-end AV receivers and HDMI splitters.
For engineers reviewing the TDA19978AHV/15/C18 datasheet, TDA19978AHV/15/C18 pinout, TDA19978AHV/15/C18 application, or TDA19978AHV/15/C18 equivalent, key selection criteria include HDMI 1.4a compliance, quad-input channel independence, 205 MHz TMDS clock support, I²C-bus programmability, and HLQFP144 package compatibility with thermal management requirements.
Technical Context
The TDA19978AHV/15/C18 implements four independent HDMI receiver channels with per-link auto-adaptive equalization and integrated HDCP 1.4 repeater functionality. Its video processing path supports ITU-R BT.601 and BT.656-compliant YCbCr 4:2:2 semi-planar output, plus RGB 4:4:4, with I²C-adjustable timing parameters (tsu(Q), th(Q)).
Audio processing includes HBR stream demultiplexing (up to 768 kHz), DSD/DST packet extraction, and multi-channel S/PDIF/I²S output (up to eight channels at 192 kHz). Clock generation uses an embedded oscillator or external crystal, with SYSCLK, ACLK, and VCLK outputs derived from a reference PLL architecture.
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 seamless switching or parallel processing of multiple HD sources without external muxing. |
| Color Depth | 8/10/12-bit per component - enables Deep Color mode for enhanced gamut rendering in premium displays and projectors. |
| Power Supplies | 1.8 V core (VDDC), 3.3 V I/O (VDDH, VDDI, VDDO) - dual-rail operation isolates noise-sensitive analog/digital domains. |
| Package | HLQFP144 (20 × 20 × 1.4 mm, exposed die pad) - thermally enhanced for sustained 1.63 W dissipation in Deep Color active mode. |
| I²C Interface | 5 V tolerant, up to 400 kbit/s - allows direct connection to standard microcontroller I²C buses without level-shifting. |
Pinout & Package
Package: HLQFP144 (plastic thermal enhanced low profile quad flat package; 144 leads; body 20 × 20 × 1.4 mm; exposed die pad).
| 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 carries clock/data for one HDMI channel. |
| VCLK, ACLK, SYSCLK | Video, audio, and system clock outputs | VCLK (≤165 MHz) drives video interface; ACLK (≤25 MHz) clocks audio paths; SYSCLK (128/256/512 × fs) simplifies DAC clocking. |
| VP[29:0], DE, HS/HREF, VS/VREF, CS/FREF | Parallel video output bus and timing signals | 29-bit LV-TTL video port supporting RGB/YCbCr 4:4:4 or 4:2:2; synchronous with programmable setup/hold timing. |
| SDA/SCL, HSDAA/HSCLA, etc. | I²C-bus and DDC-bus interfaces | Primary I²C slave interface (5 V tolerant) for configuration; dedicated DDC lines per HDMI input for EDID read/write. |
| XTALIN/MCLK, XTALOUT | Crystal oscillator terminals | Supports embedded oscillator or external 27 MHz crystal; enables precise clock recovery and jitter reduction. |
| PD | Power-down control input | Active-HIGH signal reduces power consumption to ≤1 mW - critical for standby-mode compliance in consumer AV equipment. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-adaptive equalizer per HDMI link | Compensates for cable loss up to 25 m (0.5 mm / 24 AWG), maintaining signal integrity without manual tuning. |
| Embedded OTP memory for HDCP keys | Eliminates external secure storage; prevents key extraction and ensures repeatable, tamper-resistant content protection. |
| EDID memory architecture | 253 shared bytes + 3 dedicated bytes per input - enables unique EDID profiles for each HDMI source port. |
| Programmable output format | RGB 4:4:4, YCbCr 4:4:4, or YCbCr 4:2:2 (BT.601/BT.656) selectable via I²C - matches downstream video processor requirements. |
| HBR audio stream handling | Demultiplexes Dolby TrueHD and DTS-HD Master Audio up to 768 kHz across four S/PDIF/I²S outputs - supports lossless multi-channel playback. |
| Internal pattern generator | Enables factory test and debug without external video sources - reduces production test complexity and time. |
Applications
| Home Theater AVR | HDMI Splitter / Matrix |
|---|---|
|
Use Scenario: High-end audio/video receiver aggregating four HDMI sources (Blu-ray, game console, streaming box, cable STB) for routing to display and multi-zone audio. IC Role / Device Role / Timing Role: HDMI receiver and format translator - converts encrypted HDMI streams to RGB/YCbCr, extracts audio, and generates synchronized clocks for DACs and video processors. Use Value: Enables single-chip support for quad-input switching, HDCP repeater compliance, and Deep Color passthrough - eliminating need for discrete equalizers or external EDID emulators. |
Use Scenario: Professional HDMI distribution system splitting one source to four displays with independent EDID management and signal conditioning. IC Role / Device Role / Timing Role: Quad-input HDMI receiver with per-port EDID emulation and adaptive equalization - maintains signal fidelity across long cable runs to remote displays. Use Value: Supports simultaneous output to heterogeneous displays (e.g., 1080p TV, 4K projector, UXGA monitor) using independent format conversion and timing adjustment per port. |
| High-End LCD/Plasma TV | DVD/Blu-ray Recorder |
|
Use Scenario: Integrated digital TV platform accepting multiple HDMI inputs while preserving HDCP-protected content for internal decoding and display. IC Role / Device Role / Timing Role: HDMI front-end receiver with HDCP 1.4 repeater capability and color space conversion - feeds decoded video to internal scaler and panel driver. Use Value: Delivers robust 205 MHz TMDS reception, Deep Color support, and programmable tsu(Q)/th(Q) timing - enabling precise pixel alignment on high-resolution panels. |
Use Scenario: Consumer recording device capturing HDMI video/audio from set-top boxes or game consoles with real-time HDCP-compliant decryption and re-encryption. IC Role / Device Role / Timing Role: HDCP-aware HDMI receiver with OTP key storage and HBR audio extraction - provides clean digital video and multi-channel audio streams to internal encoder. Use Value: Integrates EDID memory, audio FIFO, and format unpacking - reducing BOM count and PCB area versus discrete HDMI receiver + audio extractor solutions. |
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 memory; requires external HDCP key storage. | Limited to one HDMI source; lacks quad-input flexibility and integrated repeater logic. | Select when cost-sensitive single-source designs prioritize small footprint over multi-input scalability. |
| ADV7611BSWZ | Quad-input HDMI 1.4 receiver with integrated CEC controller; supports 225 MHz TMDS; no OTP HDCP key storage. | Requires external EEPROM for HDCP keys; offers CEC bus support not present in TDA19978AHV/15/C18. | Choose when CEC command routing is required and external key management is acceptable. |
Compared with Si2242-A-EVB and ADV7611BSWZ, the TDA19978AHV/15/C18 uniquely combines quad HDMI inputs, on-die OTP HDCP keys, per-port EDID memory, and auto-adaptive equalization - delivering higher integration and security for premium multi-source AV systems without external key or memory components.
Availability
TDA19978AHV/15/C18 is available at Aetrix Electronics and suitable for home theater AVRs, HDMI matrix switchers, high-end LCD TVs, and Blu-ray recorders requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for TDA19978AHV/15/C18 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/C18 belongs to NXP's HDMI receiver product line, designed specifically for high-fidelity, multi-source digital video reception in premium consumer AV equipment with strict HDCP and timing compliance requirements.
FAQ
What HDMI standards does the TDA19978AHV/15/C18 support?
The TDA19978AHV/15/C18 supports HDMI 1.4a, DVI 1.0, CEA-861-D, and HDCP 1.4 standards. 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/15/C18 also supports 3D Frame Packing and Top-and-Bottom formats.
Does the TDA19978AHV/15/C18 include built-in HDCP key storage?
Yes, the TDA19978AHV/15/C18 stores its HDCP key set in non-volatile One Time Programmable (OTP) memory, providing maximum security against key extraction or cloning. This eliminates the need for external secure storage and ensures consistent, tamper-resistant HDCP compliance across production units of the TDA19978AHV/15/C18.
What video output formats does the TDA19978AHV/15/C18 support?
The TDA19978AHV/15/C18 supports RGB 4:4:4, YCbCr 4:4:4, and YCbCr 4:2:2 semi-planar output formats based on ITU-R BT.601 or ITU-R BT.656 standards. Output bit depth is selectable via I²C: 8-bit and 10-bit only in 4:4:4 mode; 12-bit is supported in both 4:4:4 and 4:2:2 modes. The TDA19978AHV/15/C18 also allows I²C-adjustable video port timing (tsu(Q), th(Q)).
How many HDMI inputs does the TDA19978AHV/15/C18 have, and what is the maximum TMDS clock rate?
The TDA19978AHV/15/C18 features four independent HDMI inputs (A–D), each supporting a maximum TMDS clock frequency of 205 MHz. This enables full support for 1080p60, WUXGA, and UXGA resolutions, including Deep Color mode at up to 205 MHz. Each input includes its own auto-adaptive equalizer and dedicated DDC-bus interface for EDID management.
What package type and power supply requirements does the TDA19978AHV/15/C18 use?
The TDA19978AHV/15/C18 is housed in an HLQFP144 package (20 × 20 × 1.4 mm, exposed die pad) for thermal efficiency. It requires dual power supplies: 1.8 V for core logic (VDDC) and 3.3 V for I/O domains (VDDH, VDDI, VDDO), with specified tolerances of ±5 % (1.71–1.89 V and 3.135–3.465 V respectively). The TDA19978AHV/15/C18 consumes up to 1.63 W in Deep Color active mode.
TDA19978AHV/15/C18 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/C18 FAQ
1.How can I place an order for TDA19978AHV/15/C18 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA19978AHV/15/C18 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/C18 reliable?
The price and inventory of TDA19978AHV/15/C18 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/C18 is usually 5 days.
3.What payment methods are accepted for TDA19978AHV/15/C18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA19978AHV/15/C18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA19978AHV/15/C18?
TDA19978AHV/15/C18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA19978AHV/15/C18 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/C18?
For technical support, including TDA19978AHV/15/C18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA19978AHV/15/C18 requirements.
6.How does Aetrix verify that TDA19978AHV/15/C18 is sourced from the original manufacturer or authorized distributors?
All TDA19978AHV/15/C18 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/C18 meets industry standards.
7.What is the process for return or replacement of TDA19978AHV/15/C18?
All TDA19978AHV/15/C18 units undergo pre-shipment inspection (PSI). If there is an issue with TDA19978AHV/15/C18, 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/C18 part is unused and in its original packaging.
Return procedure for TDA19978AHV/15/C18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TDA19978AHV/15/C18 Tags
-
NVT4857UKAZ
NXP Semiconductors
-
TCA8418RTWR
Texas Instruments
-
PCA9546APWR
Texas Instruments
-
MD0100N8-G
Microchip Technology
-
PCA9548APW,118
NXP Semiconductors
-
PCA9540BDP,118
NXP Semiconductors
-
PCA9548APWR
Texas Instruments
-
PCA9546APW,118
NXP Semiconductors
-
PTN3360DBS,518
NXP Semiconductors
-
PCA9546ABS,118
NXP Semiconductors
-
PCA9518PWR
Texas Instruments
-
PCA9545APW,118
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
