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NXP Semiconductors TDA19998HL/C1,551
- Part No.:
- TDA19998HL/C1,551
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Processing
- Package:
- 100-LQFP
- Datasheet:
-
TDA19998HL/C1,551.pdf
- Description:
- IC VIDEO HDMI 1.4 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,329
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Product details
Overview
TDA19998HL/C1,551 from NXP Semiconductors is a 4:1 HDMI 1.4a-compliant switch IC for high-speed TMDS signal routing in AV receivers and home theater systems. It supports four independent HDMI inputs (up to 2.25 Gbit/s), embedded EDID memory per input, auto-adaptive equalization for up to 30 m AWG24 cables, and F3 fast-switching technology enabling zero-delay port transitions while maintaining HDCP 1.4 encryption integrity.
For engineers reviewing the TDA19998HL/C1,551 datasheet, TDA19998HL/C1,551 pinout, TDA19998HL/C1,551 application, or TDA19998HL/C1,551 equivalent, key selection considerations include its LQFP100 package with 100-pin TMDS/HPD/DDC/I²C interface layout, dual-supply operation (3.3 V and 1.8 V), Deep Color support (36-bit at 1080p60), and integrated DDC-bus master switching to prevent bus corruption during input changes.
Technical Context
The TDA19998HL/C1,551 implements a fully auto-adaptive input equalizer that dynamically compensates for cable loss across frequencies from 20 MHz to 225 MHz, supporting both short interconnects and long runs (up to 30 m AWG24). Its F3 technology monitors HDCP A0 state to avoid unnecessary resets during HDMI port switching, preserving encrypted stream continuity.
It integrates five DDC-bus channels - four per HDMI input plus one dedicated fifth channel for VGA or SoC secondary HDMI - with level-shifting, digital lock-up protection, and master-switch arbitration. The device operates in five power modes (Operating, Power-down, EDID-only, Idle, and Fail-safe output), managed via I²C or dedicated PD pin, with non-volatile configuration memory for default settings and EDID content.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Count | 4 independent HDMI 1.4a/DVI 1.0 inputs + 1 dedicated DDC-bus input for VGA/SoC |
| Max Data Rate | 2.25 Gbit/s per channel - supports 1080p60 36-bit Deep Color and 720p120 3D formats |
| Equalizer Range | Auto-adaptive compensation for 20 MHz–225 MHz TMDS clocks; up to 30 m AWG24 cable |
| EDID Memory | 253-byte shared + 3-byte dedicated per input; powered by +5 V or AUX_5V; non-volatile programming |
| Supply Voltages | 3.3 V (HDMI I/O, supervisor, output) and 1.8 V (core digital, HDMI core) - all ±10 % tolerance |
| I²C Interface | Fast-mode (400 kHz); slave address programmable (default 0xC0/0xC1); page-based register access |
| ESD Protection | IEC 61000-4-2 Class 3 (7 kV contact) on HDMI inputs; 8 kV on CEC line; HBM Class 2 |
Pinout & Package
Package: Lead-free LQFP100 (SOT407-1), 14 × 14 × 1.4 mm body, 0.5 mm pitch.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| OUT_D0+ / OUT_D0− OUT_D1+ / OUT_D1− OUT_D2+ / OUT_D2− OUT_C+ / OUT_C− |
HDMI output differential TMDS data/clock pairs | Driven TMDS outputs compliant with HDMI 1.4a eye diagram and voltage swing (400–600 mV p-p) |
| RXA_D0+ / RXA_D0− … RXD_D2+ / RXD_D2− RXA_C+ / RXA_C− … RXD_C+ / RXD_C− |
HDMI input differential TMDS data/clock pairs (4×) | High-impedance inputs with auto-adaptive equalization and 50 Ω internal termination control via R12K |
| RXA_HPD / RXB_HPD / RXC_HPD / RXD_HPD |
Hot Plug Detect outputs (5 V tolerant) | Open-drain HPD signals biased to 4 V for HEAC module compatibility; configurable via I²C |
| RXA_5V / RXB_5V / RXC_5V / RXD_5V / AUX_5V |
+5 V detection and EDID power inputs | Enables EDID memory access and DDC-bus slave operation even when main supplies are off |
| I2C_SDA / I2C_SCL | I²C-bus interface (slave) | Independent of DDC-bus; enables full register configuration without interfering with HDMI source communication |
| OUT_DDC_DAT / OUT_DDC_CLK | DDC-bus output (to HDMI receiver) | Level-shifted (5 V → 3.3 V), low-latency path synchronized with TMDS pipeline; master-switch protected |
| RXE_DDC_DAT / RXE_DDC_CLK | Fifth DDC-bus input (VGA/SoC) | Dedicated auxiliary DDC channel - requires AUX_5V supply for operation |
| PD | Power-down control | Active-HIGH input disabling TMDS buffers and analog circuitry while retaining EDID memory and I²C accessibility |
Key Features
| Feature | Design Value |
|---|---|
| F3 Fast-Switching Technology | Zero-latency HDMI port switching without HDCP re-authentication or stream interruption |
| Integrated DDC-Bus Master Switch | Prevents bus corruption by disconnecting upstream DDC and sending stop bit before reconnecting new input |
| Fail-Safe Output Mode | Configurable fixed-output state in Idle mode stabilizes receiver differential amplifiers and improves noise immunity |
| MUTE Pin (INT_N/MUTE) | Simultaneously suppresses audio pop and video noise during switching transients or power transitions |
| Extended Mode Regeneration | Re-generates TMDS waveform at output to remove jitter and skew - meets ATC/Tx eye compliance for 36-bit 1080p60 |
| Activity Detection & Auto-Power Management | Automatically enters Idle mode when no input activity is detected; wakes on HPD or +5 V change |
Applications
| Home Theater AV Receiver | 3D-TV Input Hub |
|---|---|
|
Use Scenario: Aggregating HDMI sources (Blu-ray, game console, streaming box) into a single HDMI output feeding an amplifier or display. IC Role / Device Role / Timing Role: 4:1 HDMI switch with embedded EDID management, DDC-bus arbitration, and HDCP passthrough. Use Value: Eliminates manual cable swapping; maintains HDCP 1.4 compliance across all inputs; supports 3D formats and Deep Color without decoding overhead. |
Use Scenario: Central HDMI switching node in 3D-capable televisions supporting multiple active sources with different frame packing structures. IC Role / Device Role / Timing Role: High-bandwidth TMDS router with auto-adaptive equalization for long internal PCB traces and timing-critical 3D packet forwarding. Use Value: Enables simultaneous 3D format support (side-by-side, top-and-bottom, frame sequential) up to 2.25 GHz; preserves Data Island packets including 3D InfoFrames. |
| Professional Projector Switcher | AVR with HDMI Ethernet Channel (HEAC) |
|
Use Scenario: Multi-source presentation system in conference rooms requiring reliable hot-plug detection and long-cable signal integrity. IC Role / Device Role / Timing Role: Robust HDMI switch with fail-safe output, HPD biasing, and extended equalization for 30 m AWG24 cable runs. Use Value: Maintains stable link training over extended distances; prevents false HPD triggers via activity-aware power gating and MUTE-controlled transient suppression. |
Use Scenario: Audio/Video Receiver implementing HDMI Ethernet Audio Return Channel (HEAC) functionality. IC Role / Device Role / Timing Role: HDMI switch with HPD outputs biased to 4 V to drive external HEAC PHY modules. Use Value: Enables bidirectional Ethernet over HDMI without additional level-shifting circuitry; supports legacy and HEAC-enabled displays interchangeably. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDA19997 | Pin-compatible predecessor; lacks F3 technology and fails to guarantee zero-delay HDCP-preserving switching | Acceptable where HDCP re-authentication delay is tolerable; no support for HEAC HPD biasing | Select TDA19997 only if cost sensitivity outweighs need for seamless HDCP handover and HEAC readiness |
| TDA9996 | Legacy 4:1 HDMI switch; lower max data rate (1.65 Gbit/s); no auto-adaptive equalizer; no fifth DDC channel | Suitable for 1080p30/720p60 only; cannot support 1080p60 Deep Color or 3D formats | Choose TDA9996 only for legacy designs with fixed resolution requirements and no long-cable or 3D needs |
Compared with TDA19998HL/C1,551, TDA19997 offers pin compatibility but sacrifices F3 switching speed and HEAC readiness, while TDA9996 lacks both equalization and Deep Color bandwidth - making TDA19998HL/C1,551 the sole option for robust 2.25 Gbit/s 3D/Deep Color routing with zero-interruption HDCP.
Availability
TDA19998HL/C1,551 is available at Aetrix Electronics and suitable for home theater AV receivers, 3D-TV input hubs, professional projector switchers, and HEAC-enabled AVRs requiring stable component supply, long-cable signal integrity, and HDCP 1.4 compliance.
Supply support for TDA19998HL/C1,551 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 leader focused on secure connectivity solutions for automotive, industrial, and consumer applications, with deep expertise in HDMI, DVI, and high-speed interface IP.
The TDA19998HL/C1,551 belongs to NXP's Smart HDMI Switch family, designed specifically for premium AV equipment requiring zero-delay multi-source switching, embedded EDID flexibility, and robust long-cable signal conditioning without external equalizers.
FAQ
What HDMI standards does the TDA19998HL/C1,551 comply with?
The TDA19998HL/C1,551 complies with HDMI 1.4a, DVI 1.0, EIA/CEA-861D, and HDCP 1.4 specifications. It supports all Data Island packets including Null Packets and Vendor Specific InfoFrames (e.g., 3D data), forwards Deep Color information without decoding, and meets ATC/Rx and ATC/Tx eye diagram requirements for 36-bit 1080p60 operation.
How does the auto-adaptive equalizer in the TDA19998HL/C1,551 improve signal integrity?
The TDA19998HL/C1,551's auto-adaptive equalizer dynamically compensates for frequency-dependent cable loss across TMDS clock frequencies from 20 MHz to 225 MHz. It supports up to 30 m AWG24 or 20 m AWG26 cables without external tuning, ensuring reliable link training and stable pixel transmission in long-run or noisy environments.
Can the TDA19998HL/C1,551 operate without +5 V from HDMI sources?
Yes. The TDA19998HL/C1,551 can be powered for EDID and DDC-bus operation using the dedicated AUX_5V pin, enabling full EDID memory access and source communication even when no HDMI input provides +5 V. This ensures compatibility with HDMI sources lacking +5 V output, such as some PC graphics cards or legacy adapters.
What is the function of the R12K pin on the TDA19998HL/C1,551?
The R12K pin on the TDA19998HL/C1,551 controls internal 50 Ω termination resistors for HDMI inputs. It requires an external 12 kΩ ±1 % resistor to ground. Termination can be disabled via I²C or when RXx_HPD is LOW, allowing common-mode voltage removal during power-down or EDID-only mode.
Does the TDA19998HL/C1,551 support HDMI Ethernet Audio Return Channel (HEAC)?
The TDA19998HL/C1,551 is HEAC-ready: its HPD outputs (RXA_HPD through RXD_HPD) are internally biased to 4 V, meeting the voltage requirement for driving external HEAC PHY modules. While the IC itself does not implement Ethernet MAC/PHY, it provides the necessary signaling infrastructure for HEAC integration in AV receivers.
TDA19998HL/C1,551 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Switch
- Applications:
- Video Display
- Standards:
- CEA-861-D, DVI 1.0, HDCP 1.4, HDMI 1.4a
- Control Interface:
- I2C
- Voltage - Supply:
- 1.65V ~ 1.95, 3.13V ~ 3.47V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 100-LQFP (14x14)
TDA19998HL/C1,551 FAQ
1.How can I place an order for TDA19998HL/C1,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA19998HL/C1,551 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 TDA19998HL/C1,551 reliable?
The price and inventory of TDA19998HL/C1,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA19998HL/C1,551 is usually 5 days.
3.What payment methods are accepted for TDA19998HL/C1,551?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA19998HL/C1,551 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA19998HL/C1,551?
TDA19998HL/C1,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA19998HL/C1,551 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 TDA19998HL/C1,551?
For technical support, including TDA19998HL/C1,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA19998HL/C1,551 requirements.
6.How does Aetrix verify that TDA19998HL/C1,551 is sourced from the original manufacturer or authorized distributors?
All TDA19998HL/C1,551 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 TDA19998HL/C1,551 meets industry standards.
7.What is the process for return or replacement of TDA19998HL/C1,551?
All TDA19998HL/C1,551 units undergo pre-shipment inspection (PSI). If there is an issue with TDA19998HL/C1,551, 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 TDA19998HL/C1,551 part is unused and in its original packaging.
Return procedure for TDA19998HL/C1,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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