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NXP Semiconductors TDA9981AHL/15C181,
- Part No.:
- TDA9981AHL/15C181,
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Processing
- Package:
- -
- Datasheet:
-
TDA9981AHL/15C181,.pdf
- Description:
- IC HDMI TX 150MHZ SGL OUT 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,518
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Product details
Overview
TDA9981AHL/15C181 from NXP Semiconductors is an HDMI 1.2a-compliant transmitter supporting up to 150 MHz pixel rate, 3×8-bit RGB/YCBCR video input, four I²S audio streams (up to 192 kHz), S/PDIF input, and integrated HDCP 1.1 encryption with OTP key storage - deployed in AV receivers and set-top boxes for secure high-definition video routing.
For engineers reviewing the TDA9981AHL/15C181 datasheet, TDA9981AHL/15C181 pinout, TDA9981AHL/15C181 application, or TDA9981AHL/15C181 equivalent, key selection factors include HDMI 1.2a compliance, dual-edge pixel clock support, programmable color space conversion (RGB↔YCBCR), ITU-R BT.656-compatible input formatting, and 1.8 V/3.3 V dual-supply operation.
Technical Context
The TDA9981AHL/15C181 implements a fully programmable input formatter with upsampling/interpolation logic to accept YCBCR4:4:4 (3×8-bit), YCBCR4:2:2 semi-planar (2×12-bit), and ITU-R BT.656/ITU656-like formats - including double-edge sampling capability for ITU656-like data capture. Its internal HDCP 1.1 cipher block uses SHA-1 authentication and stores keys in on-chip OTP memory.
Video timing control supports DE/HREF/FREF or HSYNC/VSYNC/DE synchronization modes; pixel clock edge sensitivity (rising/falling/both) is configurable via I²C-bus. Audio processing includes four independent I²S channels plus one S/PDIF channel, all synchronized to a common reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pixel Rate Support | Up to 150 MHz - enables UXGA (1600×1200@60 Hz) and 1080p60 video transmission |
| Video Input Format | 3×8-bit RGB or YCBCR4:4:4; also supports YCBCR4:2:2 semi-planar and ITU-R BT.656/656-like - allows direct interface to image processors and video decoders |
| Audio Interface | 4× I²S + 1× S/PDIF - supports multi-channel PCM and compressed audio passthrough in AV receivers |
| HDCP Compliance | HDCP 1.1 with on-chip OTP key storage - provides content protection without external EEPROM or secure provisioning infrastructure |
| Supply Voltages | 1.8 V core + 3.3 V I/O - enables low-power operation while maintaining compatibility with standard digital interfaces |
| Control Interface | I²C-bus (fast-mode, 400 kHz) - allows configuration of video format, color space, HDCP state, and power modes from host MCU |
Pinout & Package
Package: HLQFP100 (100-pin Heat Sink Low-profile Quad Flat Package), 14 mm × 14 mm, 0.5 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VD1–VD24 | Video Data Inputs (3×8-bit) | Accept parallel RGB or YCBCR video data; CMOS/LV-TTL compatible; support 150 MHz pixel clock |
| HSYNC, VSYNC, DE | Video Timing Control Inputs | Enable synchronous capture of video data; alternative sync modes use HREF/FREF for ITU656-like formats |
| CLKIN | Pixel Clock Input | Configurable for single- or dual-edge sampling via I²C - critical for timing alignment with source pixel engines |
| SDA, SCL | I²C Bus Interface | Provide full device configuration and status readback; operate at 400 kHz fast-mode |
| HPD, INT | HDMI Hot Plug Detect / Interrupt | HPD signals sink capability for HDMI connector detection; INT asserts on HDCP auth failure or EDID event |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Input Formatter | Supports YCBCR4:4:4, 4:2:2 semi-planar, and ITU-R BT.656/656-like inputs - eliminates need for external video preprocessing logic |
| Color Space Converter | Bi-directional RGB ↔ YCBCR conversion with selectable coefficients - enables flexible integration with RGB graphics controllers and YUV video pipelines |
| Dual-Supply Operation | 1.8 V core + 3.3 V I/O - reduces dynamic power by ~40% vs. 3.3 V-only designs while preserving interface compatibility |
| HDCP 1.1 Engine | On-die SHA-1 engine + OTP key storage - removes external security IC and simplifies BOM for certified HDMI endpoints |
| Power Management | Hard reset and software-controllable power-down mode - enables rapid system wake-up and standby current < 100 µA |
Applications
| DVD/Blu-ray Player | Set-Top Box (STB) |
|---|---|
Use Scenario: High-definition video playback with encrypted content from optical disc or broadcast stream. IC Role / Device Role / Timing Role: HDMI transmitter handling RGB/YCBCR video formatting, HDCP encryption, and audio multiplexing before HDMI output. Use Value: Enables full HDMI 1.2a compliance including HDCP 1.1, 192 kHz audio, and 150 MHz pixel rate - required for premium DVD/Blu-ray playback certification. | Use Scenario: Multi-source video switching and retransmission in cable/satellite/IPTV receivers. IC Role / Device Role / Timing Role: Repeater-capable HDMI transmitter accepting decoded video/audio from demodulator and re-encoding for HDMI output. Use Value: Supports HDCP repeater authentication chain and ITU-R BT.656 input - essential for legacy SD/HD video signal ingestion and retransmission. |
| AV Receiver | Media Center PC |
Use Scenario: Audio/video aggregation and distribution across multiple HDMI displays and speakers. IC Role / Device Role / Timing Role: HDMI transmitter with 4×I²S + S/PDIF audio inputs, performing format conversion and HDCP enforcement. Use Value: Delivers simultaneous multi-channel PCM audio and 1080p60 video with hardware-accelerated color space conversion - meets A/V receiver THX and HDMI CTS requirements. | Use Scenario: Graphics add-in board or motherboard HDMI output for desktop/laptop media playback. IC Role / Device Role / Timing Role: Bridge between GPU's parallel video bus and HDMI physical layer, adding HDCP and audio embedding. Use Value: Integrates video formatting, audio multiplexing, and HDCP into single chip - reduces PCB area and eliminates discrete audio mux + HDCP IC on graphics cards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI transmitter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TFP401APZPR | Single-link DVI transmitter only; no HDMI audio support, no HDCP, no I²S/S/PDIF interfaces | Limited to video-only applications; requires external audio path and HDCP solution | Choose when cost-sensitive DVI output suffices and HDCP/audio integration is handled externally |
| Maxim MAX9516ETL+ | Embedded video DAC + HDMI transmitter; supports only 8-bit YUV input; no ITU-R BT.656 support; HDCP 1.1 only | Targeted at compact portable devices with analog video sources; lacks 3×8-bit RGB input and multi-I²S capability | Prefer for space-constrained designs with composite/S-video inputs where RGB/YCBCR parallel bus is unavailable |
Compared with TFP401APZPR and MAX9516ETL+, the TDA9981AHL/15C181 uniquely integrates HDMI 1.2a video+audio transmission, ITU-R BT.656 input support, and on-die HDCP 1.1 with OTP key storage - making it suitable for certified consumer AV equipment requiring full feature parity and minimal external components.
Availability
TDA9981AHL/15C181 is available at Aetrix Electronics and suitable for AV receivers, set-top boxes, and media center PCs requiring stable component supply, long-term lifecycle support, and HDMI 1.2a compliance with HDCP 1.1.
Supply support for TDA9981AHL/15C181 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 TDA9981AHL/15C181 belongs to NXP's HDMI Transmitter product line, designed specifically for certified consumer audio/video equipment requiring integrated video formatting, multi-format audio ingestion, and hardware-enforced HDCP 1.1 compliance.
FAQ
What video input formats does the TDA9981AHL/15C181 support?
The TDA9981AHL/15C181 supports 3×8-bit RGB or YCBCR4:4:4, YCBCR4:2:2 semi-planar (up to 2×12-bit), and ITU-R BT.656/656-like formats with double-edge sampling. It accepts HSYNC/VSYNC/DE or HREF/FREF timing modes, enabling direct interfacing with video decoders, image processors, and broadcast video sources without external format conversion logic.
Does the TDA9981AHL/15C181 include built-in HDCP 1.1 support?
Yes, the TDA9981AHL/15C181 integrates a full HDCP 1.1-compliant cipher block with on-chip SHA-1 engine and One Time Programmable (OTP) non-volatile memory for secure key storage. This eliminates the need for external HDCP key management ICs and ensures compliance with HDMI Licensing Administrator requirements for certified endpoints.
What audio interfaces are available on the TDA9981AHL/15C181?
The TDA9981AHL/15C181 provides four independent I²S-bus audio input channels and one S/PDIF input channel, supporting audio sampling rates up to 192 kHz. All audio paths are synchronized to the video pixel clock domain, enabling precise lip-sync and multi-channel PCM or compressed audio embedding in HDMI output streams.
What power supplies does the TDA9981AHL/15C181 require?
The TDA9981AHL/15C181 operates from two separate supplies: 1.8 V for the core logic and 3.3 V for I/O buffers. This dual-supply architecture reduces dynamic power consumption while maintaining compatibility with standard 3.3 V digital interfaces such as I²C, video data buses, and audio inputs.
How is the TDA9981AHL/15C181 configured and controlled?
The TDA9981AHL/15C181 is configured exclusively via its I²C-bus interface (SDA/SCL pins), supporting fast-mode operation at 400 kHz. Through this interface, users configure video format, color space conversion, HDCP enable/disable, pixel clock edge sensitivity, power-down mode, and interrupt behavior - all without requiring additional microcontroller firmware overhead.
TDA9981AHL/15C181, Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- -
- Applications:
- -
- Standards:
- -
- Control Interface:
- -
- Voltage - Supply:
- -
- Mounting Type:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
TDA9981AHL/15C181, FAQ
1.How can I place an order for TDA9981AHL/15C181, through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA9981AHL/15C181, 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 TDA9981AHL/15C181, reliable?
The price and inventory of TDA9981AHL/15C181, are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA9981AHL/15C181, is usually 5 days.
3.What payment methods are accepted for TDA9981AHL/15C181,?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA9981AHL/15C181, transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA9981AHL/15C181,?
TDA9981AHL/15C181, orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA9981AHL/15C181, 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 TDA9981AHL/15C181,?
For technical support, including TDA9981AHL/15C181, datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA9981AHL/15C181, requirements.
6.How does Aetrix verify that TDA9981AHL/15C181, is sourced from the original manufacturer or authorized distributors?
All TDA9981AHL/15C181, 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 TDA9981AHL/15C181, meets industry standards.
7.What is the process for return or replacement of TDA9981AHL/15C181,?
All TDA9981AHL/15C181, units undergo pre-shipment inspection (PSI). If there is an issue with TDA9981AHL/15C181,, 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 TDA9981AHL/15C181, part is unused and in its original packaging.
Return procedure for TDA9981AHL/15C181,:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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