My Inquiry
My Account
Renesas TW2866-LA2-CR
- Part No.:
- TW2866-LA2-CR
- Manufacturer:
- Renesas
- Category:
- Encoders, Decoders, Converters
- Package:
- 128-LQFP
- Datasheet:
-
TW2866-LA2-CR.pdf
- Description:
- IC DECODER VIDEO 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,832
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TW2866-LA2-CR from Intersil (now Renesas) is a 4-channel analog video decoder, audio codec, and single-channel video encoder IC for security DVR/NVR systems. It integrates four 10-bit NTSC/PAL/SECAM decoders with 4H comb filters, one 10-bit dual-DAC encoder (CVBS + Y/C), five audio ADCs and one DAC, and supports ITU-R BT.656 or time-multiplexed D1/CIF output at 54/108 MHz.
For engineers reviewing the TW2866-LA2-CR datasheet, TW2866-LA2-CR pinout, TW2866-LA2-CR application, or TW2866-LA2-CR equivalent, this device serves as a full-featured AFE+encoder SoC for multi-channel analog CCTV front ends - requiring attention to video timing alignment, audio sample rate configuration, I²S/DSP interface mode selection, and PLL clock setup for simultaneous D1 decoding.
Technical Context
The TW2866-LA2-CR implements four independent analog video signal chains, each with anti-aliasing filter, 10-bit CMOS ADC, adaptive 4H comb filter, IF compensation, CTI, and programmable luminance/chrominance processing. All channels support auto-standard detection across NTSC/M/4.43, PAL-B/D/G/H/I/K/L/M/N/60, and SECAM.
Its integrated video encoder uses two 10-bit CMOS DACs to generate CVBS and Y/C outputs under selectable NTSC or PAL standard; the audio subsystem provides five 16-bit sigma-delta ADCs (8/16-bit PCM or μ-law/A-law), one DAC, and configurable I²S/DSP master/slave interfaces for recording and playback - all synchronized to a shared 108 MHz PLL-derived clock domain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Video Inputs | 4 × composite analog (VIN1A/B to VIN4A/B), supporting NTSC/PAL/SECAM with auto-detection |
| ADC Resolution | 10-bit per channel; enables 60 dB SNR for digitizing baseband CVBS signals |
| Video Output Format | ITU-R BT.656 8-bit parallel or time-multiplexed D1 (108 MHz) / CIF (54 MHz); no external FIFO required |
| Audio Interfaces | I²S/DSP master/slave mode; supports record output and playback input on shared ADATM/ADATR pins |
| Audio Sampling | Programmable 8/16/32/44.1/48 kHz; enables compatibility with DVR storage and compression pipelines |
| Power Consumption | Typical 666.84 mW at 3.3 V core and 1.8 V I/O; optimized for fanless embedded DVR thermal design |
| Package | 128-pin LQFP (14×14 mm, 0.4 mm pitch); RoHS-compliant, matte tin e3 termination |
Pinout & Package
Package: 128-pin LQFP (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant with matte tin e3 termination per IPC/JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1A–VIN4B | Analog video input pairs | Four independent composite video inputs (A/B per channel); internal 75 Ω termination enabled via RTERM pin |
| VD1[7:0]–VD4[7:0] | Digital video data bus | Time-multiplexed 8-bit YCbCr output; configured via MPPx pins and register 0xCA for channel mapping |
| ED[7:0] | BT.656 embedded sync data | Carries EAV/SAV codes and field ID in ITU-R BT.656 mode; driven only when ENCLK active |
| VYOUT / VCOUT | Analog video encoder outputs | Dual DAC outputs: CVBS (VYOUT) and S-video Y/C (VCOUT); standard-selectable via register 0x41 |
| AIN1–AIN5 | Analog audio inputs | Five single-ended audio channels; internally biased and decimated to 16-bit PCM or μ-law |
| AOUT | Analog audio mix output | Summed analog output of all five decoded channels; gain controlled by register 0xDF |
| ADATM / ADATR | Digital audio I²S/DSP interface | Configurable as master record output (ADATM) or slave playback input (ADATR); shares physical pins |
| SCLK / SDAT / IRQ | Two-wire host interface | Serial control bus (I²C-compatible) with interrupt signaling for status monitoring and register access |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive 4H comb filtering | Reduces cross-luminance and cross-chrominance artifacts across all NTSC/PAL standards without manual tuning |
| Programmable video enhancement | Hue, saturation, contrast, brightness, sharpness, CTI, and peaking individually adjustable per channel via registers |
| Simultaneous D1/CIF multiplexing | Four-channel Full D1 (108 MHz) or CIF (54 MHz) output on single 8-bit bus - reduces FPGA/ASIC video interface pin count |
| Integrated clock PLL | Generates stable 108 MHz pixel clock from crystal (XTO/XTI); eliminates need for external clock generator |
| Multi-standard audio codec | Five ADCs + one DAC with μ-law/A-law encoding; supports mixed analog output and digital I²S streaming for audio analytics |
| Fast non-realtime locking | Proprietary video lock system achieves <500 ms sync acquisition on unstable or degraded analog inputs (e.g., long coax runs) |
Applications
| 4-Channel DVR Front End | Hybrid Analog/IP Video Recorder |
|---|---|
Use Scenario: Standalone 4-channel DVR capturing analog CCTV feeds from dome/bullet cameras over RG59 coax. IC Role / Device Role / Timing Role: Primary analog AFE + encoder SoC handling video digitization, color decoding, scaling, and CVBS/YC re-encoding for local display. Use Value: Eliminates need for discrete ADCs, video processors, and encoders - reduces BOM cost and PCB area by >40% vs. multi-chip solution. |
Use Scenario: Hybrid NVR accepting both analog camera inputs and IP streams; analog channels processed locally before H.264 encoding. IC Role / Device Role / Timing Role: Video preprocessing engine providing time-synchronized D1/CIF YCbCr data to SoC's video encoder or FPGA-based compression block. Use Value: Enables precise frame alignment across 4 analog channels using shared 108 MHz clock domain - critical for motion detection and multi-camera analytics. |
| Multi-Standard Security Monitor | Legacy System Video Upgrade |
Use Scenario: Field-deployed monitor supporting mixed NTSC (US) and PAL (EU) analog camera feeds in same rack. IC Role / Device Role / Timing Role: Auto-detecting video decoder and standard-configurable encoder enabling real-time format conversion and display output. Use Value: Single hardware design supports global deployment - no firmware variants or jumper settings needed for regional video standards. |
Use Scenario: Retrofitting aging VCR-based surveillance systems with digital recording capability while retaining existing analog cameras. IC Role / Device Role / Timing Role: Drop-in replacement AFE that accepts legacy CVBS inputs and delivers digital video/audio to modern SATA SSD recorder modules. Use Value: Preserves installed camera infrastructure; leverages existing coax cabling and power supplies - cuts upgrade CAPEX by >65%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-channel video decoder and encoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TW2864-LA2-CR | 4-channel decoder only; no integrated video encoder or audio DAC - requires external DAC for CVBS output | Used where only digitization is needed (e.g., direct FPGA capture); not suitable for local analog display or mixed analog/digital output | Select TW2866-LA2-CR when CVBS/YC re-encoding or analog audio mixing is required in same package. |
| GS2971-IBE3 | Single-channel HD-SDI receiver with SMPTE 292M compliance; no analog video decoding or multi-channel capability | Targets digital video transport (e.g., camera-to-NVR fiber links); incompatible with baseband CVBS camera inputs | Choose TW2866-LA2-CR for analog CCTV front-end integration; GS2971 suits digital video infrastructure upgrades. |
Compared with TW2864-LA2-CR, TW2866-LA2-CR adds encoder and audio DAC functionality - enabling self-contained analog-to-digital-to-analog conversion. Against GS2971-IBE3, it targets fundamentally different signal domains: baseband composite video versus serial digital video - making them non-interchangeable in system architecture.
Availability
TW2866-LA2-CR is available at Aetrix Electronics and suitable for security DVR design, hybrid analog/IP video recording, multi-standard CCTV monitoring, and legacy analog system upgrades requiring stable component supply and long-term manufacturability.
Supply support for TW2866-LA2-CR 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
Renesas Electronics (formerly Intersil) is a global semiconductor leader specializing in microcontrollers, analog, power management, and mixed-signal solutions for industrial, automotive, and infrastructure markets.
The TW2866-LA2-CR belongs to Renesas' legacy video AFE product line, designed specifically for cost-sensitive, high-channel-count analog video security systems requiring integrated decoding, encoding, and audio processing in a single chip.
FAQ
What video standards does the TW2866-LA2-CR support?
The TW2866-LA2-CR supports automatic detection and decoding of NTSC (M/4.43), PAL (B/D/G/H/I/K/L/M/N/60), and SECAM analog video standards. Its adaptive 4H comb filter and IF compensation circuitry ensure robust chroma/luma separation across all supported formats without manual configuration - a key requirement for global deployment of TW2866-LA2-CR in multi-region security systems.
Does the TW2866-LA2-CR include an integrated video encoder?
Yes, the TW2866-LA2-CR integrates a single NTSC/PAL video encoder with two 10-bit CMOS DACs, generating both CVBS (on VYOUT) and Y/C (on VCOUT) analog outputs. Encoder standard selection is controlled via register 0x41, and output drive strength is configurable through registers 0x5B–0x5C - enabling direct connection to monitors or recording devices without external reconstruction filters.
How many audio channels does the TW2866-LA2-CR process?
The TW2866-LA2-CR includes five independent analog audio ADCs (AIN1–AIN5) and one audio DAC (AOUT). It supports simultaneous digitization of up to five audio channels from analog CCTV cameras or microphones, with programmable sample rates (8/16/32/44.1/48 kHz) and PCM/μ-law/A-law encoding - all managed within the same TW2866-LA2-CR die for synchronized audio/video capture.
What output formats does the TW2866-LA2-CR provide for digital video?
The TW2866-LA2-CR supports two primary digital video output modes: standard ITU-R BT.656 (8-bit YCbCr with embedded sync) and time-multiplexed formats - either four-channel CIF at 54 MHz or Full D1 at 108 MHz on a shared 8-bit bus. Output format selection is controlled via MPP pin configuration and registers 0xCB and 0x61, allowing flexible interface design with FPGAs or SoCs using TW2866-LA2-CR.
Is the TW2866-LA2-CR pin-compatible with other TW28xx series devices?
No, the TW2866-LA2-CR is not pin-compatible with earlier TW28xx variants such as TW2815 or TW2864. While sharing the 128-pin LQFP package footprint, its pin assignments for video data (VDx), audio (ADATM/ADATR), and control (MPPx) differ significantly - confirmed by Pin Diagram (p.5) and Pin Descriptions (p.6–7) in FN8253 Rev. 0.00. Board redesign is required when migrating to TW2866-LA2-CR from other family members.
TW2866-LA2-CR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 128-LQFP
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Video Decoder, Encoder
- Applications:
- Security
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 128-LQFP (14x14)
TW2866-LA2-CR FAQ
1.How can I place an order for TW2866-LA2-CR through Aetrix?
Please submit a Request for Quotation (RFQ) for TW2866-LA2-CR 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 TW2866-LA2-CR reliable?
The price and inventory of TW2866-LA2-CR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TW2866-LA2-CR is usually 5 days.
3.What payment methods are accepted for TW2866-LA2-CR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TW2866-LA2-CR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TW2866-LA2-CR?
TW2866-LA2-CR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TW2866-LA2-CR 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 TW2866-LA2-CR?
For technical support, including TW2866-LA2-CR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TW2866-LA2-CR requirements.
6.How does Aetrix verify that TW2866-LA2-CR is sourced from the original manufacturer or authorized distributors?
All TW2866-LA2-CR 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 TW2866-LA2-CR meets industry standards.
7.What is the process for return or replacement of TW2866-LA2-CR?
All TW2866-LA2-CR units undergo pre-shipment inspection (PSI). If there is an issue with TW2866-LA2-CR, 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 TW2866-LA2-CR part is unused and in its original packaging.
Return procedure for TW2866-LA2-CR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TW2866-LA2-CR Tags
-
MCP2120T-I/SL
Microchip Technology
-
LICAL-ENC-MS001
TE Connectivity Linx
-
TW9990AT-NA1-GR
Renesas
-
TVP5151IPBSR
Texas Instruments
-
TVP5150AM1IPBSR
Texas Instruments
-
LICAL-DEC-MS001-T
TE Connectivity Linx
-
ADV7391BCPZ
Analog Devices Inc.
-
ADV7393BCPZ-REEL
Analog Devices Inc.
-
ADV7393BCPZ
Analog Devices Inc.
-
ADV7391WBCPZ
Analog Devices Inc.
-
ADV7181DBCPZ
Analog Devices Inc.
-
ADV7181CBSTZ-REEL
Analog Devices Inc.
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
