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NXP Semiconductors TDA19977AHV/15,551
- Part No.:
- TDA19977AHV/15,551
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 144-LQFP Exposed Pad
- Datasheet:
-
TDA19977AHV/15,551.pdf
- Description:
- IC INTFACE SPECIALIZED 144HLQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,421
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Product details
Overview
TDA19977AHV/15,551 from NXP Semiconductors is a triple-input HDMI 1.3a-compliant receiver IC with embedded EDID memory, auto-adaptive equalizer (supporting up to 25 m cable length), HDCP 1.2 decryption (OTP-stored keys), and LV-TTL video/audio outputs. It processes HDMI streams into RGB or YCbCr 4:4:4/4:2:2 digital video at up to 1920×1080p60 and supports Deep Color (10-/12-bit) and HBR audio (up to 768 kHz) for high-end AV receivers and HDMI splitters.
For engineers reviewing the TDA19977AHV/15,551 datasheet, TDA19977AHV/15,551 pinout, TDA19977AHV/15,551 application, or TDA19977AHV/15,551 equivalent, key selection considerations include HDMI input count (3), HDCP capability (TDA19977A only), 144-pin HLQFP package, 235 MHz max pixel clock, and I²C-configurable video/audio formatting.
Technical Context
The TDA19977AHV/15,551 implements three independent HDMI 1.3a receivers with per-link auto-adaptive equalization and integrated DDC buses for EDID/HDCP handshaking. Its video processing pipeline includes programmable color space conversion (RGB↔YCbCr), 4:2:2 downsampling with selectable ITU-R BT.601 filters, and timing measurement circuitry for accurate PC/TV format recognition.
Audio handling features an audio PLL generating 128/256/512 × fs system clocks, support for I²S/S/PDIF/OBA/DST/HBR streams, and eight-channel output via AP0–AP5 pins. HDCP 1.2 repeater functionality-including encrypted OTP key storage and automatic DDC bus switching-is exclusive to the TDA19977A variant and fully managed in hardware without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| HDMI Inputs | 3 independent HDMI 1.3a links (A/B/C), each with dedicated DDC bus and termination control |
| Max Pixel Clock | 235 MHz - supports 1920×1080p60, WUXGA 1920×1200p60 RB, and UXGA 1600×1200p60 |
| Video Output Formats | RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2 semi-planar (BT.601), or YCbCr 4:2:2 (BT.656) |
| Color Depth | 8/10/12-bit per component - Deep Color mode enabled for 1080p and WUXGA with reduced blanking |
| Audio Outputs | Up to 8 channels via 6 LV-TTL audio ports (AP0–AP5); supports I²S, S/PDIF, OBA, DST, and HBR (768 kHz) |
| Power Supplies | Separate 1.8 V (core, HDMI, audio PLL) and 3.3 V (HDMI receiver, I/O, video port) rails - enables low-noise partitioning |
| Package | HLQFP144 (20×20×1.4 mm, exposed die pad) - thermal-enhanced quad flat package for AV system heat dissipation |
Pinout & Package
Package: HLQFP144 (SOT612-3), 20 mm × 20 mm × 1.4 mm body with exposed die pad connected to VSSC (digital core ground).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PD (Pin 2) | Power-down control | Active-HIGH signal enabling three power-down modes (full, EDID+I²C active, or EDID+I²C+activity detection) |
| RXAC+/−, RXBC+/−, RXCC+/− (Pins 115–116, 112–113, 8–7, etc.) | HDMI differential inputs | Three full HDMI links (clock + 3 data channels each); all support auto-equalization and 235 MHz operation |
| VCLK (Pin 30), ACLK (Pin 78), SYSCLK/AP5 (Pin 85) | Timing outputs | Video clock (165 MHz max), audio clock (25 MHz), and system clock (50 MHz) - drive external video/audio processing ICs |
| VP[0]–VP[29] (Pins 36–76) | Digital video output bus | 30-bit LV-TTL parallel video port configurable for RGB/YCbCr bit mapping and high-impedance control via I²C |
| AP0–AP5 (Pins 79–85), ACLK (Pin 78) | Audio interface | LV-TTL audio ports supporting I²S/S/PDIF/OBA/DST/HBR - layout-selectable per Table 4–6 |
| SDA/SCL (Pins 97–98), HSCLA/B/C & HSDAA/B/C (Pins 99–102, 138–139) | I²C and DDC interfaces | 5 V-tolerant I²C slave (400 kbit/s) for configuration; three dedicated DDC buses for HDCP/EDID on each HDMI input |
Key Features
| Feature | Design Value |
|---|---|
| Auto-adaptive equalizer | Compensates for channel loss in real time across all three HDMI inputs - enables reliable 25 m cable runs with 0.5 mm (24 AWG) cables |
| HDCP 1.2 repeater (TDA19977A only) | Hardware-managed authentication, re-keying, and DDC bus arbitration - no CPU overhead required for HDCP handshake |
| Programmable video timing | I²C-adjustable tsu(Q) and th(Q) values allow precise synchronization alignment with downstream video processors like Nexperia SoCs |
| Deep Color unpacking | Automatically reconstructs 10-/12-bit pixel groups from fragmented HDMI packets - preserves full color fidelity for UHD sources |
| Multi-format sync measurement | Measures horizontal/vertical periods and blanking intervals using 27 MHz MCLK reference - achieves ±1 LSB accuracy for robust PC/TV format detection |
| Configurable audio routing | Three audio port layouts (I²S/S/PDIF/OBA/DST/HBR) selectable via I²C - simplifies integration with diverse DACs and audio subsystems |
Applications
| Home Theater Receiver | HDMI Splitter / Switch |
|---|---|
Use Scenario: High-end AV receiver aggregating HDMI sources (Blu-ray, STB, game console) before decoding and amplification. IC Role / Device Role / Timing Role: HDMI receiver front-end converting encrypted/unencrypted streams to parallel RGB/YCbCr for downstream video scaling and audio extraction. Use Value: HDCP 1.2 repeater capability and embedded EDID memory eliminate external microcontroller coordination for source negotiation. | Use Scenario: Multi-display HDMI distribution unit routing one active source to four displays with format-aware scaling. IC Role / Device Role / Timing Role: Input selector and video format translator - detects resolution/refresh rate and adjusts output timing (VREF/HS/VS) accordingly. Use Value: Auto-adaptive equalizer maintains signal integrity across long HDMI cables to remote displays, reducing jitter-induced artifacts. |
| Professional Projector | High-End LCD/Plasma TV |
Use Scenario: Large-venue projector accepting PC graphics (UXGA) and broadcast video (1080i/p) over HDMI with minimal latency. IC Role / Device Role / Timing Role: Video digitizer and format normalizer - converts HDMI to parallel YCbCr 4:4:4 with precise blanking measurement for native aspect ratio rendering. Use Value: Sync timing measurement (±1 MCLK period) ensures pixel-perfect alignment between PC and broadcast sources. | Use Scenario: Premium flat-panel TV supporting Deep Color, HBR audio, and multiple HDMI inputs with seamless switching. IC Role / Device Role / Timing Role: Core HDMI interface IC providing RGB/YCbCr output, HDCP management, and audio packet extraction for internal SoC. Use Value: 12-bit Deep Color support and HBR stream demultiplexing enable lossless SACD/Dolby TrueHD playback through internal audio subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Silicon Image SiI9134 | Single-input HDMI 1.3 receiver; no HDCP repeater; 108-pin QFP; lacks Deep Color unpacking and HBR support | Targeted at cost-sensitive single-source designs; not suitable for multi-input or HDCP-repeater systems | Select when only one HDMI input is needed and HDCP repeater functionality is unnecessary |
| NXP TDA19988 | Successor HDMI 1.4 receiver; adds 3D support, CEC, and higher bandwidth (340 MHz); same HLQFP144 package | Designed for next-gen TVs/projectors requiring 3D video and enhanced audio formats (Dolby Atmos) | Choose for new designs needing HDMI 1.4 compliance and future-proof feature set |
Compared with SiI9134 and TDA19988, the TDA19977AHV/15,551 uniquely balances triple-input flexibility, hardware HDCP 1.2 repeater autonomy, and Deep Color/HBR audio in a mature, production-proven HLQFP144 package - making it optimal for legacy-compatible high-channel-count AV equipment.
Availability
TDA19977AHV/15,551 is available at Aetrix Electronics and suitable for home theater receivers, HDMI splitters, professional projectors, and high-end LCD/Plasma TVs requiring stable component supply and long-term industrial availability.
Supply support for TDA19977AHV/15,551 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.
The TDA19977AHV/15,551 belongs to NXP's legacy HDMI receiver product line, engineered specifically for high-fidelity AV equipment requiring multi-source HDMI aggregation, HDCP-compliant content distribution, and precise video/audio timing control.
FAQ
What HDMI standards does the TDA19977AHV/15,551 support?
The TDA19977AHV/15,551 supports HDMI 1.3a, DVI 1.0, and CEA-861-D standards. It complies with HDCP 1.2 exclusively in the TDA19977A variant (including this part number), enabling secure content distribution with repeater functionality. It does not support HDMI 1.4 or later features such as 3D or Ethernet channel.
Does the TDA19977AHV/15,551 require an external crystal oscillator?
The TDA19977AHV/15,551 includes an embedded oscillator but also accepts an external 27 MHz crystal via XTALIN/MCLK (Pin 94) and XTALOUT (Pin 93). Using the external crystal improves timing accuracy for sync measurement and audio PLL stability - recommended for professional AV applications demanding ±1 LSB timing precision.
How many audio channels can the TDA19977AHV/15,551 output simultaneously?
The TDA19977AHV/15,551 supports up to eight audio channels via its six LV-TTL audio ports (AP0–AP5) and ACLK. In I²S or S/PDIF mode, all eight channels are accessible; in DSD (SACD) mode, up to six channels are supported; and in HBR/DST mode, four demultiplexed S/PDIF or I²S outputs carry compressed streams like Dolby TrueHD or DTS-HD Master Audio.
What is the function of the RRX1 and RRX2 pins on the TDA19977AHV/15,551?
RRX1 (Pin 106) and RRX2 (Pin 143) control the internal 50 Ω HDMI input termination resistors for HDMI inputs A/B and C/D respectively. Each requires an external 12 kΩ ±1 % resistor tied to VDDH(3V3) to set proper impedance matching - critical for signal integrity at 235 MHz and essential for stable operation with long HDMI cables.
Can the TDA19977AHV/15,551 operate without HDCP functionality enabled?
Yes, the TDA19977AHV/15,551 processes HDMI streams both with and without HDCP protection. HDCP decryption is hardware-implemented only in the TDA19977A variant (this part), but the device operates fully in non-HDCP mode - passing through unprotected video/audio streams, supporting EDID negotiation, and enabling all video/audio formatting features regardless of HDCP status.
TDA19977AHV/15,551 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
TDA19977AHV/15,551 FAQ
1.How can I place an order for TDA19977AHV/15,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA19977AHV/15,551 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 TDA19977AHV/15,551 reliable?
The price and inventory of TDA19977AHV/15,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA19977AHV/15,551 is usually 5 days.
3.What payment methods are accepted for TDA19977AHV/15,551?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA19977AHV/15,551 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA19977AHV/15,551?
TDA19977AHV/15,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA19977AHV/15,551 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 TDA19977AHV/15,551?
For technical support, including TDA19977AHV/15,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA19977AHV/15,551 requirements.
6.How does Aetrix verify that TDA19977AHV/15,551 is sourced from the original manufacturer or authorized distributors?
All TDA19977AHV/15,551 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 TDA19977AHV/15,551 meets industry standards.
7.What is the process for return or replacement of TDA19977AHV/15,551?
All TDA19977AHV/15,551 units undergo pre-shipment inspection (PSI). If there is an issue with TDA19977AHV/15,551, 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 TDA19977AHV/15,551 part is unused and in its original packaging.
Return procedure for TDA19977AHV/15,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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