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NXP Semiconductors TDA19977AHV/15,557
- Part No.:
- TDA19977AHV/15,557
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 144-LQFP Exposed Pad
- Datasheet:
-
TDA19977AHV/15,557.pdf
- Description:
- IC INTFACE SPECIALIZED 144HLQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,629
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Product details
Overview
TDA19977AHV/15,557 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 1.8 V/3.3 V dual-supply operation. It converts HDMI streams into RGB or YCbCr 4:4:4/4:2:2 digital video outputs and supports Deep Color (10-/12-bit) at 1080p60 and WUXGA 60 Hz.
For engineers reviewing the TDA19977AHV/15,557 datasheet, TDA19977AHV/15,557 pinout, TDA19977AHV/15,557 application, or TDA19977AHV/15,557 equivalent, key selection considerations include HDMI input count (3), HDCP 1.2 support (TDA19977A only), 235 MHz max pixel clock, LV-TTL video port output compatibility, and I²C-configurable color space conversion and downsampling filters.
Technical Context
The TDA19977AHV/15,557 implements a full HDMI 1.3a receiver stack with integrated HDCP 1.2 decryption (exclusive to TDA19977A variant), auto-adaptive equalization per channel, and programmable video timing adjustment via tsu(Q)/th(Q) registers. Its architecture includes dedicated HDMI link receivers for inputs A/B/C, an embedded oscillator (or external crystal option), and independent audio/video processing paths.
It delivers parallel digital video outputs in RGB 4:4:4, YCbCr 4:4:4, or ITU-R BT.601/BT.656–compliant YCbCr 4:2:2 semi-planar formats, with selectable 8-/10-/12-bit depth and I²C-controlled color space conversion (RGB↔YCbCr). Audio processing supports HBR (up to 768 kHz), DSD, DST, and IEC 61937 streams across four S/PDIF/I²S ports (eight channels total).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| HDMI Inputs | Three independent HDMI 1.3a-compliant inputs (A/B/C), each with differential RXxC+/−, RXxB+/−, RXxA+/− pairs and dedicated DDC buses |
| Max Pixel Clock | 235 MHz - supports 1080p60, WUXGA 60 Hz reduced blanking, and UXGA 60 Hz PC resolutions |
| HDCP Support | HDCP 1.2 decryption with OTP-stored keys - exclusive to TDA19977A; enables repeater functionality and secure content path |
| Video Output Format | Programmable RGB 4:4:4, YCbCr 4:4:4, or YCbCr 4:2:2 semi-planar (BT.601) / ITU-R BT.656 - configurable via I²C |
| Audio Capability | Up to eight-channel audio output via four S/PDIF/I²S ports (AP0–AP5); supports HBR (768 kHz), DSD (SACD), DST, and IEC 61937 streams |
| Power Supply | Separate 1.8 V (core, HDMI receiver, audio PLL) and 3.3 V (HDMI supply, video port, digital inputs) rails - enables low-power domain isolation |
| Equalizer | Auto-adaptive per-link equalizer - laboratory-validated for 25 m of 0.5 mm (24 AWG) cable at 2.25 GSPS |
Pinout & Package
Package: HLQFP144 (plastic thermal enhanced low-profile quad flat package; 20 × 20 × 1.4 mm body; exposed die pad connected to VSSC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PD (Pin 2) | Power-down control input | Active-HIGH signal enabling three power-down modes (full shutdown, EDID+I²C active, or EDID+I²C+activity detection) |
| RXAC+/−, RXBC+/−, RXCC+/− (Pins 115/116, 112/113, 8/7 etc.) | HDMI differential clock/data inputs | Three independent HDMI input channels (A/B/C), each with three TMDS data pairs + one clock pair - supports hot-plug detection and activity-based auto-selection |
| VCLK (Pin 30), ACLK (Pin 78), SYSCLK/AP5 (Pin 85) | Video/audio/system clock outputs | LV-TTL-compatible clocks: VCLK ≤165 MHz (video), ACLK ≤25 MHz (audio), SYSCLK = 128/256/512×fs (for DACs like UDA1334BTS) |
| VP[29:0] (Pins 36–76, 75–76, 138–139 truncated) | Parallel video port outputs | 30-bit LV-TTL bus supporting RGB/YCbCr 4:4:4 (20–29 bits), 4:2:2 semi-planar (0–9 bits), or BT.656 (0–9 bits) - individually configurable via I²C |
| HS/HREF, VS/VREF, CS/FREF (Pins 34, 33, 32) | Timing reference outputs | Horizontal/vertical sync and composite/field sync signals - programmable polarity and timing offset (tsu/th) for format alignment |
| SDA/SCL (Pins 97/98), HSDAA/HSCLA etc. (Pins 99–102, 138–139) | I²C and DDC interfaces | 5 V-tolerant I²C slave interface (400 kbit/s) with address set by A0 (Pin 110); three dedicated DDC buses (A/B/C) for EDID/HDCP handshaking |
Key Features
| Feature | Design Value |
|---|---|
| Triple HDMI Input Architecture | Enables seamless source switching in AV receivers, HDMI splitters, and multi-source media hubs without external muxing or FPGA logic |
| Auto-Adaptive Equalization | Eliminates manual EQ tuning and PCB layout constraints - maintains signal integrity over long cables (≤25 m) and varying trace impedances |
| HDCP 1.2 Repeater Function | Allows certified downstream devices to be daisy-chained while maintaining end-to-end content protection - required for compliant home theater amplifiers and projectors |
| Programmable Video Timing (tsu/th) | Permits precise alignment of VP[29:0] output timing to downstream video processors (e.g., Nexperia SoCs), reducing setup/hold violations and jitter sensitivity |
| Deep Color & Multi-Format Audio | Supports 10-/12-bit color depth and HBR/DSD/DST audio - essential for high-fidelity Blu-ray playback, SACD, and Dolby TrueHD applications |
| Embedded Oscillator + Crystal Option | Reduces BOM count and board space vs. discrete crystal solutions; external 27 MHz crystal supported for tighter timing accuracy in broadcast-grade systems |
Applications
| Home Theater Amplifier | HDMI Splitter / Switch |
|---|---|
Use Scenario: Integrated into premium AV receivers handling multiple HDMI sources (Blu-ray, game console, streaming box) and routing decoded video/audio to display and speakers. IC Role / Device Role / Timing Role: HDMI receiver and HDCP repeater - performs HDCP authentication, video format recognition, color space conversion, and parallel RGB/YCbCr output generation. Use Value: Enables secure, low-latency passthrough of 1080p60 and Deep Color content while offloading video timing and audio packet extraction from main SoC. | Use Scenario: Used in professional HDMI distribution systems that route one selected input to multiple displays (e.g., digital signage, conference rooms). IC Role / Device Role / Timing Role: Triple-input receiver with automatic activity detection and I²C-controlled input selection - drives synchronized video/audio outputs to multiple downstream receivers. Use Value: Eliminates need for external microcontroller-based switching logic; built-in equalizer ensures signal integrity across long cable runs to remote displays. |
| High-End LCD/Plasma TV | DVD/Blu-ray Recorder |
Use Scenario: Embedded in flagship flat-panel TVs to decode HDMI inputs from external sources and feed internal video processing pipeline (deinterlacing, scaling, color enhancement). IC Role / Device Role / Timing Role: High-speed video digitizer - converts HDMI streams into parallel YCbCr 4:2:2 or RGB 4:4:4 at native resolution/timing for real-time processing. Use Value: Supports WUXGA 60 Hz and 12-bit Deep Color - critical for accurate color reproduction and high-resolution UI rendering in premium displays. | Use Scenario: Implemented in recorders that ingest HDMI video/audio, process metadata (InfoFrames), and re-encode to optical disc or internal storage. IC Role / Device Role / Timing Role: HDMI receiver with packet extraction and audio stream demultiplexing - recovers channel status, gamut metadata, and HBR/DSD audio for recording engine. Use Value: Preserves high-bitrate audio fidelity (Dolby TrueHD, DTS-HD MA) and color gamut information during capture - required for archival-quality recording. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si2242-A-EVB | Single-input HDMI 1.4 receiver; no HDCP support; 165 MHz max clock; QFN64 package | Lacks triple-input capability, HDCP, and Deep Color - suitable only for basic HDMI-to-DVI conversion or single-source monitors | Select only when HDCP, multi-source switching, or >165 MHz bandwidth are unnecessary |
| ADV7611BSWZ | Dual-input HDMI 1.4 receiver; supports HDCP 1.4; 225 MHz max clock; LQFP128 package; no embedded equalizer | Higher HDCP version but lacks auto-adaptive equalizer and 235 MHz capability - requires external signal conditioning for long cables | Prefer when HDCP 1.4 compliance or dual-input with higher reliability is prioritized over cable reach and 235 MHz headroom |
Compared with Si2242-A-EVB and ADV7611BSWZ, the TDA19977AHV/15,557 uniquely combines triple HDMI inputs, HDCP 1.2 repeater capability, 235 MHz bandwidth, and lab-validated 25 m equalization - making it optimal for high-density, long-cable, and content-protected consumer AV systems.
Availability
TDA19977AHV/15,557 is available at Aetrix Electronics and suitable for home theater amplifiers, HDMI splitters, high-end LCD TVs, and Blu-ray recorders requiring stable component supply, long-cable HDMI signal integrity, and HDCP 1.2–compliant content protection.
Supply support for TDA19977AHV/15,557 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 digital media processing and interface IP.
The TDA19977AHV/15,557 belongs to NXP's Nexperia HDMI receiver family, designed specifically for high-fidelity, multi-source AV equipment requiring robust HDCP handling, long-cable equalization, and flexible video/audio output formatting.
FAQ
Does the TDA19977AHV/15,557 support HDCP, and how is it implemented?
Yes, the TDA19977AHV/15,557 supports HDCP 1.2 decryption exclusively - it stores encrypted keys in non-volatile OTP memory and handles full authentication, re-keying, and repeater functions autonomously. The TDA19977AHV/15,557 integrates three dedicated DDC buses (one per HDMI input) and manages HDCP handshaking without CPU intervention, making it ideal for certified AV receivers and projectors.
What video output formats does the TDA19977AHV/15,557 support, and how are they configured?
The TDA19977AHV/15,557 supports RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2 semi-planar (ITU-R BT.601), and YCbCr 4:2:2 (ITU-R BT.656) outputs. Format selection, bit depth (8/10/12-bit), and video port mapping (e.g., VP[29:0] assignment) are all controlled via its I²C-bus interface using dedicated registers - enabling runtime reconfiguration without hardware changes.
Can the TDA19977AHV/15,557 handle long HDMI cable runs, and what is the maximum validated length?
Yes, the TDA19977AHV/15,557 features an embedded auto-adaptive equalizer on all three HDMI links, which dynamically optimizes signal integrity. It is laboratory-validated for reliable operation with up to 25 m of 0.5 mm (24 AWG) cable at 2.25 GSPS - eliminating the need for external redrivers in most residential and commercial AV installations.
What audio capabilities does the TDA19977AHV/15,557 provide, and which formats are supported?
The TDA19977AHV/15,557 supports up to eight-channel audio output via four configurable S/PDIF or I²S ports (AP0–AP5), with sampling rates up to 192 kHz. It fully decodes HBR (768 kHz), DSD (SACD), DST, and IEC 61937 compressed audio streams - including Dolby TrueHD and DTS-HD Master Audio - and provides channel status decoding per IEC 60958.
Is the TDA19977AHV/15,557 pin-compatible with other members of the TDA19977 family, such as the TDA19977BHV?
Yes, the TDA19977AHV/15,557 shares the same HLQFP144 package and pinout as the TDA19977BHV, enabling direct PCB footprint reuse. However, the TDA19977AHV/15,557 includes HDCP 1.2 decryption and OTP key storage - functionality absent in the TDA19977BHV - so firmware and security architecture must be verified for drop-in replacement.
TDA19977AHV/15,557 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/15,557 FAQ
1.How can I place an order for TDA19977AHV/15,557 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA19977AHV/15,557 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/15,557 reliable?
The price and inventory of TDA19977AHV/15,557 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA19977AHV/15,557 is usually 5 days.
3.What payment methods are accepted for TDA19977AHV/15,557?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA19977AHV/15,557 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA19977AHV/15,557?
TDA19977AHV/15,557 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA19977AHV/15,557 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/15,557?
For technical support, including TDA19977AHV/15,557 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA19977AHV/15,557 requirements.
6.How does Aetrix verify that TDA19977AHV/15,557 is sourced from the original manufacturer or authorized distributors?
All TDA19977AHV/15,557 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/15,557 meets industry standards.
7.What is the process for return or replacement of TDA19977AHV/15,557?
All TDA19977AHV/15,557 units undergo pre-shipment inspection (PSI). If there is an issue with TDA19977AHV/15,557, 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/15,557 part is unused and in its original packaging.
Return procedure for TDA19977AHV/15,557:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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