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NXP Semiconductors TDA9981AHL/15/C181
- Part No.:
- TDA9981AHL/15/C181
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Processing
- Package:
- -
- Datasheet:
-
TDA9981AHL/15/C181.pdf
- Description:
- IC HDMI TX 150MHZ SGL OUT 80LQFP
- Quantity:
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Inventory:1,659
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Product details
Overview
TDA9981AHL/15/C181 from NXP Semiconductors is an HDMI 1.2a-compliant transmitter IC supporting up to 150 MHz pixel rate, 3×8-bit RGB/YCBCR video input, four I²S audio streams (up to 192 kHz), and S/PDIF input-used in AV receivers and set-top boxes for secure digital video/audio interface.
For engineers reviewing the TDA9981AHL/15/C181 datasheet, TDA9981AHL/15/C181 pinout, TDA9981AHL/15/C181 application, or TDA9981AHL/15/C181 equivalent, key selection criteria include HDCP 1.1 compliance, programmable color space conversion, dual-edge pixel clock support, and OTP-secured key storage for content protection.
Technical Context
The TDA9981AHL/15/C181 implements a full HDMI 1.2a physical layer with integrated HDCP 1.1 cipher engine, SHA-1 authentication, and One Time Programmable (OTP) memory for key storage. It supports HDMI transmission at 250 MHz–1.5 GHz TMDS clock rates and handles pixel rates up to 150 MHz for the /15 variant.
Its programmable input formatter accepts YCBCR4:4:4 (3×8-bit), YCBCR4:2:2 semi-planar (2×12-bit), ITU-R BT.656, and ITU656-like formats with double-edge sampling capability. Color space conversion is fully configurable via I²C-bus for RGB↔YCBCR bidirectional mapping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pixel Rate Support | Up to 150 MHz - enables UXGA (1600×1200@60 Hz) and 1080p60 video timing without interpolation. |
| HDMI Version | HDMI 1.2a compliant - supports deep color metadata, auto lip-sync, and consumer electronics control (CEC) readiness. |
| Video Input Format | 3×8-bit RGB or YCBCR4:4:4; also supports YCBCR4:2:2 semi-planar and ITU-R BT.656 - allows direct connection to image processors and video decoders. |
| Audio Interface | 4× I²S + 1× S/PDIF - enables multi-channel PCM audio routing from baseband sources or audio DSPs. |
| HDCP Compliance | HDCP 1.1 with internal OTP key storage - provides hardware-enforced content protection without external key management circuitry. |
| Power Supply | 1.8 V core + 3.3 V I/O - supports low-power operation while maintaining compatibility with standard logic interfaces. |
| Control Interface | I²C-bus (fast-mode, 400 kHz) - enables configuration of video format, color space, HDCP state, and power modes from host MCU. |
Pinout & Package
Package: HLQFP64 (64-pin Heat Sink Low-profile Quad Flat Package), 10 mm × 10 mm, 0.5 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Pixel Clock Input | Accepts single- or dual-edge-triggered clock up to 150 MHz; determines video timing resolution and refresh rate. |
| DE, HSYNC, VSYNC | Video Timing Control Inputs | Supports standard sync protocols (TTL/CMOS); DE mode enables flexible data enable-based synchronization. |
| DATA[23:0] | 3×8-bit Video Data Bus | Tri-state CMOS/LV-TTL inputs accepting RGB or YCBCR; mapped to R/G/B or Y/Cb/Cr per configuration. |
| I2S[3:0], SPDIF_IN | Audio Input Terminals | Four independent I²S channels plus S/PDIF coaxial/optical input - supports up to 8-channel PCM or compressed audio passthrough. |
| SDA, SCL | I²C Interface Pins | Fast-mode I²C bus (400 kHz) for register programming, HDCP initialization, and status polling. |
| HDCP_KEY | HDCP Key Access Terminal | Internal OTP key access point - no external key storage required; prevents cloning and unauthorized decryption. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Input Formatter | Enables direct interface to diverse video sources (ITU-R BT.656, YCBCR4:2:2 semi-planar, RGB) without external FPGA or glue logic. |
| Bidirectional Color Space Converter | Hardware-accelerated RGB ↔ YCBCR conversion eliminates CPU load and latency in media processor pipelines. |
| Dual-Edge Pixel Clock Sampling | Allows use of lower-frequency clock sources while achieving high-resolution timing - reduces EMI and simplifies clock tree design. |
| Integrated HDCP 1.1 Engine | SHA-1 authentication + OTP key storage meets Hollywood content protection requirements without external crypto ICs. |
| Low-Power Power-Down Mode | Reduces standby current to <100 µA - critical for always-on AV receivers and energy-certified consumer devices. |
Applications
| DVD/Blu-ray Player | Set-Top Box (STB) |
|---|---|
Use Scenario: Digital video playback with HDMI output to display. IC Role / Device Role / Timing Role: HDMI transmitter converting decoded MPEG-2/AVC video and PCM audio into TMDS signals with HDCP encryption. Use Value: Enables certified playback of protected commercial content using internal OTP-stored HDCP keys and 150 MHz pixel rate for full HD resolution. | Use Scenario: Multi-source video switching and retransmission to TV or AV receiver. IC Role / Device Role / Timing Role: HDMI repeater with HDCP 1.1 authentication pass-through and re-encryption for downstream devices. Use Value: Supports cascaded HDCP topology with automatic key exchange and SHA-1 verification - required for certified STB deployments. |
| AV Receiver | Media Center PC |
Use Scenario: Audio/video aggregation from multiple HDMI sources and redistribution. IC Role / Device Role / Timing Role: HDMI transmitter handling simultaneous video scaling and multi-channel audio embedding (I²S + S/PDIF). Use Value: Delivers synchronized 1080p60 video and 7.1-channel PCM via single HDMI link - eliminates need for separate audio DACs or muxes. | Use Scenario: Graphics add-in board outputting HDMI from GPU or media engine. IC Role / Device Role / Timing Role: Bridge between parallel video bus (e.g., LVDS or TTL) and HDMI PHY layer with embedded HDCP. Use Value: Provides plug-and-play HDMI output on desktop/notebook graphics cards without external HDCP controller or firmware licensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI transmitter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si2920-A10 | Supports HDMI 1.3, higher pixel rate (225 MHz), no integrated HDCP key storage - requires external EEPROM for keys. | Targeted at professional monitors and industrial displays where HDCP licensing flexibility is prioritized over security hardening. | Select when HDMI 1.3 features (xvYCC, deeper color) are needed and external key management is acceptable. |
| ADV7511W | Includes HDMI 1.4a support, CEC controller, and integrated microcontroller; operates at 1.8 V only - no 3.3 V I/O. | Optimized for portable and embedded systems with tight power budgets and need for CEC-based remote control integration. | Select when CEC functionality and single-supply operation are mandatory, and software-controlled HDCP initialization is preferred. |
Compared with Si2920-A10 and ADV7511W, the TDA9981AHL/15/C181 offers hardened HDCP 1.1 security via OTP memory and dual-voltage operation, making it optimal for cost-sensitive, mass-market CE devices requiring certified content protection without external crypto components.
Availability
TDA9981AHL/15/C181 is available at Aetrix Electronics and suitable for DVD players, set-top boxes, and AV receivers requiring stable component supply, long-term lifecycle support, and HDMI 1.2a compliance with integrated HDCP.
Supply support for TDA9981AHL/15/C181 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 specializing in secure connectivity solutions for automotive, industrial, and consumer electronics.
The TDA9981AHL/15/C181 belongs to NXP's HDMI Transmitter product line, designed specifically for cost-effective, high-reliability digital AV interface applications in mainstream consumer entertainment equipment.
FAQ
What video formats does the TDA9981AHL/15/C181 support?
The TDA9981AHL/15/C181 supports 3×8-bit RGB or YCBCR4:4:4, YCBCR4:2:2 semi-planar (up to 2×12-bit), ITU-R BT.656, and ITU656-like formats with double-edge sampling. Format selection and timing alignment are configured via its I²C-bus interface. The TDA9981AHL/15/C181 processes all these formats internally without external frame buffers or converters.
Does the TDA9981AHL/15/C181 include built-in HDCP support?
Yes, the TDA9981AHL/15/C181 integrates a full HDCP 1.1-compliant cipher block with SHA-1 authentication and One Time Programmable (OTP) non-volatile memory for secure key storage. This eliminates the need for external HDCP controllers or key management ICs, and the TDA9981AHL/15/C181 performs all encryption/decryption operations in hardware.
What audio interfaces are available on the TDA9981AHL/15/C181?
The TDA9981AHL/15/C181 provides four independent I²S-bus audio input channels and one S/PDIF input channel, supporting audio sampling rates up to 192 kHz. These interfaces allow simultaneous routing of multi-channel PCM audio from baseband sources, DSPs, or audio codecs - all embedded directly into the HDMI stream by the TDA9981AHL/15/C181.
What is the maximum pixel clock rate supported by the TDA9981AHL/15/C181?
The TDA9981AHL/15/C181 supports a maximum pixel clock rate of 150 MHz, corresponding to the "/15" speed grade variant. This enables full HD (1920×1080@60 Hz) and UXGA (1600×1200@60 Hz) resolutions. The TDA9981AHL/15/C181 achieves this using dual-edge sampling on CLKIN, reducing required clock source frequency and system EMI.
How is the TDA9981AHL/15/C181 controlled and configured?
The TDA9981AHL/15/C181 is controlled exclusively via a fast-mode I²C-bus interface (up to 400 kHz), which configures video format, color space conversion, HDCP state, power modes, and audio routing. All registers are accessible through this interface, and the TDA9981AHL/15/C181 requires no external firmware or boot code - configuration is handled entirely by the host processor.
TDA9981AHL/15/C181 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- -
- Applications:
- -
- Standards:
- -
- Control Interface:
- -
- Voltage - Supply:
- -
- Mounting Type:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
TDA9981AHL/15/C181 FAQ
1.How can I place an order for TDA9981AHL/15/C181 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA9981AHL/15/C181 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/15/C181 reliable?
The price and inventory of TDA9981AHL/15/C181 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA9981AHL/15/C181 is usually 5 days.
3.What payment methods are accepted for TDA9981AHL/15/C181?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA9981AHL/15/C181 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA9981AHL/15/C181?
TDA9981AHL/15/C181 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA9981AHL/15/C181 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/15/C181?
For technical support, including TDA9981AHL/15/C181 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA9981AHL/15/C181 requirements.
6.How does Aetrix verify that TDA9981AHL/15/C181 is sourced from the original manufacturer or authorized distributors?
All TDA9981AHL/15/C181 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/15/C181 meets industry standards.
7.What is the process for return or replacement of TDA9981AHL/15/C181?
All TDA9981AHL/15/C181 units undergo pre-shipment inspection (PSI). If there is an issue with TDA9981AHL/15/C181, 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/15/C181 part is unused and in its original packaging.
Return procedure for TDA9981AHL/15/C181:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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