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Renesas TW2965-LA2-CR
- Part No.:
- TW2965-LA2-CR
- Manufacturer:
- Renesas
- Category:
- Encoders, Decoders, Converters
- Package:
- 128-LQFP
- Datasheet:
-
TW2965-LA2-CR.pdf
- Description:
- IC VIDEO DECODER 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,566
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Product details
Overview
TW2965-LA2-CR from Intersil is a 4-channel WD1 (960H)/D1-compatible video decoder with integrated audio codecs and digital video encoder, supporting NTSC/PAL auto-detection, 10-bit CVBS ADCs per channel, ITU-R BT.656 YCbCr(4:2:2) output at up to 144MHz, and embedded clock PLL for 144/108MHz generation - deployed in multi-channel DVR systems for analog CCTV signal digitization and encoding.
For engineers reviewing the TW2965-LA2-CR datasheet, TW2965-LA2-CR pinout, TW2965-LA2-CR application, or TW2965-LA2-CR equivalent, key selection considerations include 4-channel simultaneous WD1/D1 decoding capability, integrated 5-channel audio ADC + 1-channel DAC, programmable video enhancement (peaking/CTI), analog input flexibility (2 CVBS per ADC), and 128-pin LQFP package compatibility with legacy surveillance SoC interfaces.
Technical Context
The TW2965-LA2-CR implements four independent video decode pipelines, each with a 10-bit ADC, 4-H adaptive comb filter, PAL delay line, digital sub-carrier PLL, and horizontal PLL for pixel-accurate sampling. It supports both WD1 (960H) and D1 resolutions via time-multiplexed ITU-R BT.656 output at 36/72/144MHz or 27/54/108MHz depending on format selection.
Its audio subsystem integrates five 24-bit sigma-delta audio ADCs with decimation filters, one 24-bit DAC with interpolation filter, I²S/DSP master/slave interface, and programmable sample rates (8–48kHz). The embedded video encoder accepts digital YCbCr input and outputs composite or S-video signals, synchronized to internal or external clocks via ENCLK and ED[7:0] inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Video Channels | 4 independent WD1 (960H) / D1 compatible decode channels with per-channel programmability |
| ADC Resolution | 10-bit analog-to-digital conversion per CVBS input, enabling high-fidelity luminance/chrominance separation |
| Output Format | ITU-R BT.656 YCbCr(4:2:2) time-multiplexed output at 144MHz (WD1) or 108MHz (D1) |
| Audio Interfaces | I²S/DSP master/slave support for record playback; 5-channel ADC + 1-channel DAC with 8/16-bit PCM and μ-Law/A-Law encoding |
| Sample Rate | Programmable audio sampling at 8/16/32/44.1/48kHz - covers all standard surveillance and broadcast audio requirements |
| Power Supplies | 1.0V core (VDDI), 3.3V I/O (VDDO), 3.3V analog video (VDDV), 3.3V analog audio (VDDA), 3.3V PLL (VDDAPLL), 3.3V DAC (VDDVDA) |
| ESD Rating | 8 kV HBM on analog video/audio inputs (VSSV/VDDV and VSSA/VDDA pins), ensuring robustness in field-deployed CCTV hardware |
Pinout & Package
Package: 128-pin LQFP (14 mm × 20 mm), RoHS-compliant, matte tin e3 termination, MSL3 rated for lead-free reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1A–VIN4B (pins 116,117,119,120,122,123,125,126) | Analog CVBS video inputs | Eight total composite video inputs - two per channel (A/B), enabling flexible source switching or dual-input redundancy per decode path |
| VD1[7:0]–VD4[7:0] (e.g., pins 62–71, 52–60, etc.) | Digital video data outputs | Four 8-bit parallel BT.656 YCbCr outputs - time-multiplexed per channel, synchronized to CLKPO/CLKNO |
| ACLKR/ASYNR/ADATR (pins 73–75) | Audio record interface | I²S/DSP slave-mode record path: bit clock, word sync, and serial data - supports multi-channel audio capture |
| ACLKP/ASYNP/ADATP (pins 78–80) | Audio playback interface | I²S/DSP master-mode playback path: clock, sync, and serial data input - enables local audio rendering or streaming |
| CLKPO/CLKNO (pins 46,47) | Programmable clock outputs | Dual-phase clock outputs configurable for 36/72/144MHz (WD1) or 27/54/108MHz (D1) - drives external FPGA or processor video interface |
| MPP1–MPP4 (pins 83–86) | Multi-purpose pins | Configurable as HS/VS/FLD/ACTIVE/NOVID per channel - provides real-time sync status and loss detection to host MCU |
| RSTB (pin 7) | Active-low reset input | Asynchronous system reset that initializes all internal registers and state machines - requires clean deassertion after power stabilization |
Key Features
| Feature | Design Value |
|---|---|
| 4-H adaptive comb filter per channel | Enables precise Y/C separation in NTSC/PAL signals without external components, reducing crosstalk and dot crawl artifacts |
| Programmable peaking and CTI | Real-time luma sharpening and color transient improvement - adjustable via register map to match lens/sensor characteristics |
| Embedded video encoder (ED[7:0], ENCLK) | Accepts digital YCbCr input and generates analog composite/S-video output - eliminates need for external encoder IC in hybrid DVR designs |
| Single 27MHz crystal support | Generates all required video/audio clocks internally via integrated PLL - simplifies BOM and reduces board space vs. multi-crystal solutions |
| 3.3V-tolerant I/O with 1.0V core | Enables direct interfacing with 3.3V FPGAs or processors while minimizing dynamic power consumption in logic domain |
| Automatic standard detection | Identifies NTSC (M, 4.43) and PAL (B, D, G, H, I, M, N, 60) formats without host intervention - critical for unattended multi-region DVR deployments |
Applications
| 4-Channel DVR Systems | Hybrid Analog/IP Video Recorders |
|---|---|
Use Scenario: Simultaneous digitization and compression of four analog CCTV camera feeds (WD1 resolution) into H.264/H.265 streams for network storage and remote viewing. IC Role / Device Role / Timing Role: Primary video front-end: performs analog-to-digital conversion, color decoding, sync processing, and BT.656 formatting before feeding SoC encoder. Use Value: Enables full 4-channel WD1 capture at ≤144MHz pixel clock with no external ADCs or sync generators - reduces component count by ≥6 ICs per channel. |
Use Scenario: Legacy analog camera integration into modern IP-based surveillance platforms using edge AI inference or cloud analytics. IC Role / Device Role / Timing Role: Bridge device: converts analog CVBS to standardized digital video (BT.656) and audio (I²S), then routes to network processor or FPGA. Use Value: Provides deterministic timing alignment between video and audio streams via shared clock domain - essential for lip-sync accuracy in mixed analog/digital recording. |
| Multi-Standard Broadcast Monitoring | Automotive Rear-View Camera Hub |
Use Scenario: Field test equipment verifying NTSC/PAL signal integrity across broadcast transmission chains, including weak-signal and non-standard sync conditions. IC Role / Device Role / Timing Role: Signal analyzer front-end: detects format, measures jitter, identifies loss-of-sync events (NOVID), and extracts chroma/luma metrics. Use Value: Advanced sync processor handles unstable or distorted signals - delivers reliable frame lock even under 30% sync amplitude degradation. |
Use Scenario: Centralized video aggregation unit in commercial vehicles accepting up to four analog backup cameras (NTSC/PAL) and overlaying graphics onto single display. IC Role / Device Role / Timing Role: Video multiplexer and preprocessor: selects active channel, applies peaking/contrast, embeds OSD timing, and outputs encoded composite. Use Value: Integrated video encoder (ED[7:0]/ENCLK) allows direct composite output without external DAC - cuts latency by >2 video lines vs. discrete encode+DAC path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-channel video decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TW2964-LA2-CR | 4-channel version without integrated video encoder; lacks ED[7:0], ENCLK, and VYOUT pins | Suitable only where external encoder or digital-only output is acceptable - not usable in composite-output DVRs | Select when system already includes dedicated video encoder and lower cost/power is prioritized over integration |
| ADV7180BCPZ | Single-channel SD analog video decoder; 10-bit ADC, BT.656 output, no audio codec or encoder | Requires four instances plus external audio and clock management - increases PCB area, power, and firmware complexity | Prefer for low-channel-count or highly modular designs where scalability and thermal isolation outweigh integration benefits |
Compared with TW2965-LA2-CR, TW2964-LA2-CR removes encoder functionality but retains identical video/audio decode specs, while ADV7180BCPZ offers higher SNR (52 dB vs. 48 dB) in single-channel operation but forces multi-chip synchronization and layout coordination.
Availability
TW2965-LA2-CR is available at Aetrix Electronics and suitable for 4-channel DVR systems, hybrid analog/IP video recorders, multi-standard broadcast monitoring equipment, and automotive rear-view camera hubs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for TW2965-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
Intersil (now part of Renesas Electronics) is a semiconductor company specializing in precision analog, power management, and video interface ICs for industrial, automotive, and communications markets.
The TW2965 belongs to Intersil's legacy video decoder product line, designed specifically for cost-sensitive, high-channel-count analog CCTV digitization - balancing integration density, power efficiency, and multi-standard flexibility in embedded surveillance hardware.
FAQ
What video standards does the TW2965-LA2-CR support?
The TW2965-LA2-CR supports NTSC (M, 4.43) and PAL (B, D, G, H, I, M, N, N combination, 60) with automatic format detection. It decodes both WD1 (960H) and D1 analog video formats, delivering ITU-R BT.656 YCbCr(4:2:2) output at programmable pixel clocks up to 144MHz. This makes TW2965-LA2-CR ideal for global deployment in multi-region surveillance systems without manual configuration.
Does the TW2965-LA2-CR include an integrated video encoder?
Yes, the TW2965-LA2-CR includes a fully functional digital video encoder block. It accepts digital YCbCr input via ED[7:0] and ENCLK, and generates analog composite or S-video output on the VYOUT pin. This eliminates the need for external encoder ICs in DVR designs targeting composite output - a key differentiator from alternatives like the TW2964-LA2-CR, which lacks this feature.
How many audio channels can the TW2965-LA2-CR process simultaneously?
The TW2965-LA2-CR integrates five independent audio ADCs and one audio DAC, enabling simultaneous capture of five analog audio channels (e.g., from microphone inputs or camera audio feeds) and playback of mixed stereo output via AOUT. Audio is handled through configurable I²S/DSP master/slave interfaces with programmable sample rates from 8 kHz to 48 kHz - all managed within the same TW2965-LA2-CR die.
What is the function of the MPP1–MPP4 pins on the TW2965-LA2-CR?
MPP1–MPP4 are multi-purpose pins on the TW2965-LA2-CR, configurable per channel to output horizontal sync (HS), vertical sync (VS), field ID (FLD), active video (ACTIVE), or video loss (NOVID) signals. They provide real-time timing and fault status directly to the host processor - for example, NOVID asserts when input signal drops below detectable level, enabling rapid failover or alert generation in mission-critical TW2965-LA2-CR-based DVRs.
What power supply voltages does the TW2965-LA2-CR require?
The TW2965-LA2-CR requires six distinct supply rails: 1.0V for core logic (VDDI), 3.3V for I/O drivers (VDDO), 3.3V for analog video ADCs (VDDV), 3.3V for analog audio (VDDA), 3.3V for clock PLL (VDDAPLL), and 3.3V for video DAC (VDDVDA). Each has dedicated ground returns (VSS, VSSV, VSSA, VSSAPLL, VSSVDA) - proper separation is mandatory to maintain SNR >48 dB and avoid cross-talk in TW2965-LA2-CR video/audio paths.
TW2965-LA2-CR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 128-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Video Decoder, Audio Codec
- Applications:
- Audio, Video
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 128-LQFP (14x20)
TW2965-LA2-CR FAQ
1.How can I place an order for TW2965-LA2-CR through Aetrix?
Please submit a Request for Quotation (RFQ) for TW2965-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 TW2965-LA2-CR reliable?
The price and inventory of TW2965-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 TW2965-LA2-CR is usually 5 days.
3.What payment methods are accepted for TW2965-LA2-CR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TW2965-LA2-CR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TW2965-LA2-CR?
TW2965-LA2-CR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TW2965-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 TW2965-LA2-CR?
For technical support, including TW2965-LA2-CR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TW2965-LA2-CR requirements.
6.How does Aetrix verify that TW2965-LA2-CR is sourced from the original manufacturer or authorized distributors?
All TW2965-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 TW2965-LA2-CR meets industry standards.
7.What is the process for return or replacement of TW2965-LA2-CR?
All TW2965-LA2-CR units undergo pre-shipment inspection (PSI). If there is an issue with TW2965-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 TW2965-LA2-CR part is unused and in its original packaging.
Return procedure for TW2965-LA2-CR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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