TDA19989BET - 150MHz HDMI 1.4 Transmitter | NXP
MPN: TDA19989BET ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.96 | $496.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $3.98 | $3,980.00 |
TDA19989BET Overview
An HDMI transmitter (also called an HDMI encoder or video interface IC) is a digital video device that converts parallel digital video streams - such as RGB or YCbCr data in ITU-R BT.656 or CEA-861B formats - into serialized TMDS (Transition Minimized Differential Signaling) signals compliant with the HDMI physical layer. Within the video signal-chain hierarchy, it sits between a display controller or graphics processor and the physical HDMI connector, and is a key element of consumer and automotive display systems.
Key features include a 150 MHz maximum pixel clock enabling up to 1080p60 video resolution, three 8-bit digital video input ports, HDCP 1.3 encryption for protected content, and Consumer Electronics Control (CEC) channel support. The device is configured and controlled via an I2C-bus interface, and accepts video formats per CEA-861B, HDMI 1.3a/1.4, DVI 1.0, and ITU-R BT.656 standards.
Architecturally, the TDA19989BET integrates the TMDS serializer, pixel repetition and color-space handling, HDCP cipher logic, and EDID/DDC management in a single low-power die. The TFBGA ball-grid-array package provides short interconnects that preserve signal integrity at the 1.485 Gbps-per-lane TMDS rates implied by the 150 MHz pixel clock.
Typical applications include HDMI output ports in set-top boxes, digital media players and Blu-ray-class sources, embedded display and signage systems, and industrial or automotive monitors requiring HDCP-protected digital video output. The 4.5 x 4.5 mm footprint suits space-constrained mainboards.
Design consideration: ensure proper TMDS differential pair impedance (100 ohm) and place AC-coupling or series elements per the manufacturer datasheet layout guidelines; power sequencing of the 3.3 V and 1.8 V (typical) rails must follow the datasheet to avoid latch-up.
This page synthesizes distributor availability, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for TDA19989BET — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TDA19989AET
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TDA19989BET/C1,551
✅ Drop-In📋 Reference alternative (not in catalog)
TDA19989BET/C1,518
✅ Drop-In📋 Reference alternative (not in catalog)
TDA19989BET Specifications
| Function | HDMI 1.4 Transmitter |
| Maximum Pixel Rate | 150 MHz |
| HDCP Version | HDCP 1.3 |
| HDMI Compliance | HDMI 1.3a / HDMI 1.4 |
| DVI Compliance | DVI 1.0 |
| Video Input Formats | CEA-861B, ITU-R BT.656 |
| Control Interface | I2C |
| CEC Support | Yes |
| Video Input Ports | 3 x 8-bit |
| Package / Case | 64-TFBGA (4.5 x 4.5 mm) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (TR) |
| Applications | HDMI, DVI |
TDA19989BET 64-tfbga (4.5 x 4.5 mm) Pin Configuration Guide
Pin configuration for TDA19989BET (64-tfbga (4.5 x 4.5 mm) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for TDA19989BET.
Refer to the datasheet for full pin configuration.
Typical Applications
TDA19989BET is suitable for 6 applications: Set-Top Box HDMI Output, Digital Media Player HDMI Source, Industrial Embedded Display Systems, Test and Measurement Video Generators, KVM Switches and AV Distribution, Legacy Repair and Replacement Boards.
Set-Top Box HDMI Output
The TDA19989BET fits set-top box HDMI output ports because its 150 MHz pixel rate natively covers 1080p60 video, and its integrated HDCP 1.3 cipher legally transmits protected premium content from broadcast and streaming sources. The three 8-bit video input ports accept ITU-R BT.656 and CEA-861B streams directly from the SoC display controller, eliminating external video conversion logic. In the circuit, the host writes registers over the I2C bus to select input port, video timing, and TMDS output enable, while the device autonomously handles EDID reads and HDCP authentication over DDC. The quantified benefit is a single-chip HDMI/DVI front end in a 4.5 x 4.5 mm 64-TFBGA that minimizes mainboard area and BOM count compared with discrete serializer-plus-HDCP solutions.
Recommended
Digital Media Player HDMI Source
Media player and streaming-stick mainboards use the TDA19989BET to serialize the graphics processor's parallel video output into HDMI 1.4 TMDS. The 150 MHz pixel rate supports all common HD resolutions up to 1080p60, while HDMI 1.3a/1.4 and DVI 1.0 compliance lets one output serve HDMI TVs and legacy DVI monitors alike. The CEC channel enables one-touch-play and remote-control passthrough features required by consumer ecosystems. Because HDCP 1.3 is on-chip, DRM-protected streams never traverse an unencrypted path, simplifying security certification. Board designers benefit from the 64-TFBGA 4.5 x 4.5 mm footprint and tape-and-reel supply for high-volume pick-and-place. Trade-off: at 1080p60 the TMDS lanes run near 1.485 Gbps, so routing must respect 100-ohm differential impedance per the manufacturer datasheet layout guidance.
Recommended
Industrial Embedded Display Systems
Industrial monitors, HMI panels, and digital signage players adopt the TDA19989BET when an embedded processor must drive an external display over standard HDMI. Its CEA-861B and ITU-R BT.656 input flexibility matches the parallel video outputs common on industrial MCUs and FPGAs, and the I2C control interface integrates cleanly with existing low-speed management buses. The 150 MHz pixel limit comfortably covers 1280x1024 and 1080p60 signage content. In these designs the transmitter typically sits immediately downstream of an FPGA frame buffer, with the I2C master handling mode detection from the sink's EDID. The 4.5 x 4.5 mm TFBGA suits dense multi-output signage boards. Designers should budget for fanless thermal environments by keeping the pixel rate within margin and verifying power dissipation against the manufacturer datasheet figures.
Recommended
Test and Measurement Video Generators
Video pattern generators and HDMI compliance test fixtures use the TDA19989BET as the signal source because it faithfully generates CEA-861B and DVI 1.0 timing from a controlled parallel input, and its HDCP 1.3 support permits testing encrypted-link behaviors. The 150 MHz pixel rate spans the full SD/HD resolution ladder that bench instruments must produce, and register-level I2C control lets automation software sweep timings deterministically. In a typical instrument, an FPGA feeds one of the three 8-bit input ports, firmware configures timing registers over I2C, and the TMDS output drives the device-under-test or a protocol analyzer. The deterministic, register-driven configuration path is the key performance attribute, enabling repeatable test sequences that discrete or software-defined alternatives struggle to match at equivalent cost.
Recommended
KVM Switches and AV Distribution
KVM switches, HDMI splitters, and AV matrix components deploy the TDA19989BET on their output stages. Because multiple input sources must appear on one sink, the design relies on the transmitter's DDC/EDID management and I2C register model to reconfigure timing dynamically when the operator switches sources; the three 8-bit input ports can also terminate more than one internal video path. HDCP 1.3 on-chip ensures protected sources remain compliant through the switch fabric, and CEC pass-through preserves consumer remote-control behavior across switching events. The 150 MHz pixel rate covers 1080p60, the dominant ceiling for cost-sensitive commercial AV. Layout-wise, the 64-TFBGA keeps TMDS escape routing short on crowded switch boards, reducing insertion loss at 1.485 Gbps lane rates and easing compliance with HDMI signal-integrity limits.
Recommended
Legacy Repair and Replacement Boards
Contract manufacturers repairing HDMI-equipped consumer boards increasingly face TDA19989BET sourcing gaps; this part remains a repair-life component for set-top box and media-player mainboards. Service centers substitute the same-family TDA19989AET where the HDMI 1.3 feature set suffices for the repaired product's original specification, matching the 150 MHz pixel rate, HDCP 1.3, and CEC functionality with the same package family. Distributor stock verified on 2026-10-11 includes 5,376 pieces of the C1,518 variant at Heisener, plus Mouser and DigiKey listings of the C1,518 and C1,551 orderable codes, giving repair buyers multiple authorized and independent channels. Before board-level substitution, engineers should diff the NXP datasheets for both variants to confirm ball map identity and register compatibility for the specific firmware in the fielded product.
Recommended
Recommended Products Summary
Engineering reference data for TDA19989BET — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TDA19989AET | TDA19989BET/C1,551 | TDA19989BET/C1,518 |
|---|---|---|---|---|
| Package | 64-TFBGA (4.5 x 4.5 mm) | 64-TFBGA - same family | 64-TFBGA (4.5 x 4.5 mm) - same | 64-TFBGA (4.5 x 4.5 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Maximum Pixel Rate | 150 MHz | 150 MHz | 150 MHz | 150 MHz |
| HDMI Compliance | HDMI 1.3a / 1.4 | HDMI 1.3 | HDMI 1.3a (DigiKey listing) | HDMI 1.4 (Mouser listing) |
| HDCP Version | HDCP 1.3 | HDCP 1.3 | HDCP 1.3 | HDCP 1.3 |
| CEC Support | Yes | Yes | Yes | Yes |
| Control Interface | I2C | I2C | I2C | I2C |
Key Differentiators
- HDMI 1.4 feature headroom at 150 MHz (vs TDA19989AET)
- Integrated HDCP 1.3 cipher (vs TDA19989AET)
- Trade-off: 150 MHz pixel ceiling (vs TDA19989AET)
Design Notes
TMDS output pairs must be routed as 100-ohm differential traces with matched intra-pair skew and minimal via transitions. At a 150 MHz pixel rate, the data lanes operate at the HDMI 1.4 1080p60 rate (approximately 1.485 Gbps per lane), where even short stubs cause reflections visible as sparkle noise on the display. Keep the transmitter within 50-100 mm of the HDMI connector, add the datasheet-recommended series elements, and avoid splitting TMDS pairs across plane gaps.
Supply the TMDS, core, and I/O rails with separate low-noise decoupling networks; typical NXP HDMI transmitters in this family require approximately 3.3 V I/O and a lower-voltage core rail (verify exact rails in the official datasheet). Ferrite-isolate the TMDS supply domain from noisy digital rails, and follow the datasheet power-up sequencing to avoid latch-up or HDCP state corruption. A bulk 10 uF plus local 100 nF per supply pin is the conventional starting point.
Two pitfalls recur on TDA19989-based boards. First, HDCP authentication failures are usually DDC/EDID bus contention: ensure the I2C master does not poll the DDC lines during sink EDID reads, or use an I2C multiplexer such as the PCA9546A to isolate buses. Second, pixel clock limit: 150 MHz is a hard ceiling - do not attempt 4K or deep-color modes exceeding the pixel budget, which the device cannot serialize. Confirm the exact variant (AET vs BET) before firmware reuse, since register behavior may differ.
Compliance Information
The provided distributor data (Mouser, DigiKey, Heisener) does not state RoHS, REACH, AEC-Q100, or lead-free status for TDA19989BET/C1,518. Confirm compliance on the official NXP product page or datasheet before use.
