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Semtech Corporation GS2961-IBE3
- Part No.:
- GS2961-IBE3
- Manufacturer:
- Semtech Corporation
- Category:
- Video Processing
- Package:
- 100-LBGA
- Datasheet:
-
GS2961-IBE3.pdf
- Description:
- IC VIDEO RECEIVER 100BGA
- Quantity:
- Payment:
- Shipping:
Inventory:245
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Product details
Overview
GS2961-IBE3 from Semtech is a multi-rate SDI receiver IC supporting 3Gb/s, HD, and SD video rates with integrated adaptive cable equalizer, SMPTE-compliant reclocking, and ancillary data extraction. It operates at 2.97 Gb/s (SMPTE 425M Level A/B), 1.485 Gb/s (SMPTE 292M), and 270 Mb/s (SMPTE 259M-C), delivers 150 m equalized reach over Belden 1694A at 3G, and provides 10-bit or 20-bit parallel output for direct interface to video processors in broadcast infrastructure.
For engineers reviewing the GS2961-IBE3 datasheet, pinout, applications, or equivalent options, this page details its SMPTE 425M Level B-to-A conversion capability, integrated VCO reclocker with 0.7 UI input jitter tolerance, dual power domains (1.2 V core / 3.3 V I/O), and 100-ball 11 mm × 11 mm BGA package - all critical for SDI receiver selection in 1080p/4K routing, converter, and monitoring systems.
Technical Context
The GS2961-IBE3 implements a full SMPTE processing pipeline including descrambling, word alignment, TRS detection, EDH packet handling, and SMPTE 352M ancillary data extraction. Its adaptive equalizer dynamically compensates for cable loss and DC content in pathological signals, enabling stable lock on degraded SDI inputs.
It features a programmable reclocker with internal VCO and configurable PLL loop bandwidth (0.5–2.5 MHz), supports four operating modes (SMPTE, DVB-ASI, Data-Through, Standby), and offers flexible timing outputs including H/V/F sync and CEA-861-compliant signals - all controlled via GSPI host interface with register-level enable/disable of individual processing blocks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rates | 2.97 Gb/s, 2.97/1.001 Gb/s, 1.485 Gb/s, 1.485/1.001 Gb/s, 270 Mb/s - covers all SMPTE 425M Level A/B, 424M, 292M, 259M-C and DVB-ASI standards. |
| Cable Equalization | Up to 150 m on Belden 1694A at 2.97 Gb/s - enables long-haul SDI signal recovery without external equalizers. |
| Input Jitter Tolerance | 0.7 UI - ensures robust lock under high-jitter broadcast environments, exceeding SMPTE 425M requirements. |
| Parallel Output | Selectable 10-bit or 20-bit bus - reduces FPGA/ASIC pin count while preserving full video fidelity for 1080p/4K processing. |
| Power Supply | 1.2 V core, 1.2 V & 3.3 V analog, selectable 1.8 V or 3.3 V I/O - supports mixed-voltage system integration with low-noise analog domains. |
| Operating Temp | −20 °C to +85 °C - qualified for industrial and broadcast equipment deployed in uncontrolled thermal environments. |
| Power Dissipation | Typical 515 mW - enables dense SDI channel packing in multi-channel routers and converters without excessive thermal management. |
Pinout & Package
GS2961-IBE3 uses an 11 mm × 11 mm, 100-ball Pb-free BGA package (ball pitch: 0.8 mm) with standard JEDEC MO-275AC footprint. Power and ground balls are distributed across multiple banks to minimize noise coupling between analog, digital, and I/O domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDI | Serial Digital Input | Differential SDI input pair (pins D2/D3) accepting 75 Ω coaxial input; internally terminated and equalized. |
| PCLK | Parallel Clock Output | Source-synchronous clock for 10-/20-bit parallel bus; supports SDR and DDR timing modes per SMPTE 425M. |
| DOUT[19:0] | Parallel Data Output | 20-bit LVCMOS bus (configurable as 10-bit multiplexed); directly interfaces to video processor FIFOs or FPGA video IP. |
| GSPI Interface (CS_TMS, SCLK_TCK, SDIN_TDI, SDOUT_TDO) | Host Control Interface | 4-wire SPI-compatible interface for register configuration, status readback, and ANC FIFO access. |
| XTAL1 / XTAL2 | Crystal Oscillator Input | Supports 27 MHz fundamental-mode crystal for reclocker reference; internal buffer eliminates need for external oscillator. |
| LOCKED | Status Output | Open-drain indicator asserting high when serial input is locked and valid video data is available. |
Key Features
| Feature | Design Value |
|---|---|
| SMPTE 425M Level B → Level A conversion | Enables 1080p50/60 4:2:2 10-bit ingest into legacy Level A-only processing pipelines without external format translators. |
| Integrated adaptive equalizer + DC restoration | Compensates for up to 150 m Belden 1694A loss at 3G while restoring DC balance on pathological SMPTE signals. |
| Programmable reclocker with internal VCO | Eliminates need for external VCXO or clock cleaner; configurable loop bandwidth optimizes jitter transfer for source-specific stability. |
| Ancillary data extraction via GSPI-accessible FIFO | Allows host CPU to retrieve full SMPTE 352M packets (e.g., timecode, caption, metadata) without interrupting video path. |
| CEA-861 timing signal generation | Outputs H/V/DE or CEA-861-compliant sync signals directly usable by HDMI transmitter ICs or display controllers. |
| Multi-mode operation (SMPTE/DVB-ASI/Data-Through) | Permits reuse in ASI transport streams or transparent serial-to-parallel bridging, reducing BOM count across broadcast subsystems. |
Applications
| 3G-SDI to Dual-Link HD-SDI Conversion | HD/SD-SDI Monitoring & Analysis |
|---|---|
Use Scenario: Converting single-link 3G-SDI feeds (e.g., 1080p60 camera output) into dual-link HD-SDI for compatibility with legacy HD infrastructure. IC Role / Device Role / Timing Role: GS2961-IBE3 acts as the primary deserializer and SMPTE processor, extracting timing, performing Level B-to-A conversion if needed, and driving two parallel 10-bit buses synchronized to PCLK. Use Value: Enables seamless integration of modern 3G cameras into HD-SDI routing switchers and recorders without external frame synchronizers or format converters. |
Use Scenario: Real-time analysis of SDI signal integrity, error flags (TRS, CRC, EDH), and ancillary data in broadcast quality control systems. IC Role / Device Role / Timing Role: GS2961-IBE3 serves as the front-end receiver, providing lock status, error registers, and full ANC packet access via GSPI for software-based diagnostics. Use Value: Delivers deterministic error reporting and timestamped metadata extraction - critical for automated compliance logging and fault isolation in master control rooms. |
| Multi-Channel SDI Distribution Amplifier | Professional Video Capture Card |
Use Scenario: High-density SDI distribution in OB vans or production studios requiring simultaneous retransmission of 8+ channels with minimal latency and jitter accumulation. IC Role / Device Role / Timing Role: GS2961-IBE3 operates in reclocked mode, regenerating clean serial output (SDO) while maintaining SMPTE timing integrity across all channels. Use Value: Provides consistent 0.7 UI input jitter tolerance and sub-10 ps RMS jitter on reclocked output - ensuring reliable fan-out to downstream receivers over long cable runs. |
Use Scenario: PCIe-based capture cards for live streaming, post-production, or virtual production requiring low-latency, uncompressed 10-bit video ingestion. IC Role / Device Role / Timing Role: GS2961-IBE3 delivers parallel 20-bit video + H/V/F sync to FPGA logic, with PCLK aligned to video data edges for glitch-free sampling. Use Value: Eliminates need for external deserializer FPGAs or glue logic; 100-ball BGA fits compact card layouts while supporting 3G/HD/SD rate auto-detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SDI receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GS2971-IBE3 | Successor device with extended 12G-SDI support (SMPTE ST 2082), higher equalization range (200 m @ 12G), and enhanced ANC FIFO depth. | Required for UHD/4K60 12G-SDI ingest; not backward compatible for legacy 3G-only designs due to register map changes. | Choose GS2971-IBE3 only when upgrading to 12G infrastructure; GS2961-IBE3 remains optimal for cost-sensitive 3G/HD/SD deployments. |
| LMH0384SQ/NOPB | TI device with fixed 3G/HD/SD support but no Level B-to-A conversion, no CEA-861 timing, and lower max equalization (120 m @ 3G). | Limited to basic deserialization and reclocking; requires external logic for ANC extraction or timing generation. | Use LMH0384SQ/NOPB where SMPTE processing depth is unnecessary and BOM simplicity outweighs feature richness. |
Compared with GS2971-IBE3, the GS2961-IBE3 offers proven stability in mature 3G broadcast gear with simpler register programming, while versus LMH0384SQ/NOPB it delivers deeper SMPTE compliance, integrated timing, and superior cable reach - making it the balanced choice for mid-tier routing, monitoring, and capture platforms.
Availability
GS2961-IBE3 is available at Aetrix Electronics and suitable for broadcast routing switchers, SDI signal analyzers, professional capture cards, and multi-format distribution amplifiers requiring stable component supply across long product lifecycles.
Supply support for GS2961-IBE3 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for sensing, connectivity, and power management.
The GS2961-IBE3 belongs to Semtech's Gennum broadcast video product line, designed specifically for SMPTE-compliant SDI signal conditioning, deserialization, and processing in professional video infrastructure.
FAQ
What video standards does the GS2961-IBE3 support?
The GS2961-IBE3 supports SMPTE 425M (Level A and Level B), SMPTE 424M, SMPTE 292M, SMPTE 259M-C, and DVB-ASI standards. It auto-detects incoming video rate and format, enabling seamless operation across 3G-SDI (1080p60), HD-SDI (720p/1080i), and SD-SDI (480i/576i) signals without manual configuration. The GS2961-IBE3 also handles pathological SMPTE signals via integrated DC restoration.
Does the GS2961-IBE3 require an external crystal oscillator?
No, the GS2961-IBE3 integrates a crystal buffer and supports direct connection of a 27 MHz fundamental-mode crystal to XTAL1/XTAL2 pins. An external oscillator is not required. The device uses this reference for its internal VCO-based reclocker, and the crystal interface meets SMPTE 425M jitter specifications. The GS2961-IBE3 datasheet specifies layout guidelines for optimal crystal placement and load capacitance.
Can the GS2961-IBE3 extract ancillary data such as timecode or captions?
Yes, the GS2961-IBE3 provides full SMPTE 352M ancillary data packet extraction through a dedicated GSPI-accessible FIFO. Host software can read complete ANC packets-including timecode (SMPTE 12M), closed captions (EIA-608/708), and user bits-without disrupting the video data path. This capability is enabled via register programming and is confirmed in the GS2961-IBE3 functional block diagram and Section 4.18.8 of its datasheet.
What is the maximum cable length supported by the GS2961-IBE3 at 3G-SDI?
The GS2961-IBE3 achieves up to 150 meters of equalized reach over Belden 1694A coaxial cable at 2.97 Gb/s, as specified in its key features and AC electrical characteristics table. This performance assumes typical installation conditions and accounts for both insertion loss and jitter accumulation. The adaptive equalizer continuously adjusts to maintain lock, and the value is measured and guaranteed per SMPTE 425M compliance testing procedures.
How is the parallel output format configured on the GS2961-IBE3?
The GS2961-IBE3 parallel output is configured via the 20BIT/10BIT pin (pin E1) and internal registers: tying E1 high selects 20-bit mode; tying it low selects 10-bit multiplexed mode. In 10-bit mode, DOUT[9:0] carries alternating Y/C samples synchronized to PCLK, reducing pin count for FPGA or ASIC interfaces. Both formats are supported across all video rates (3G/HD/SD), and timing is documented in Figures 4-5 through 4-7 of the GS2961-IBE3 datasheet.
GS2961-IBE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 100-LBGA
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Function:
- Receiver
- Applications:
- Professional Video
- Standards:
- DVB-ASI, SMPTE
- Control Interface:
- Logic
- Voltage - Supply:
- 1.71V ~ 1.89V, 3.13V ~ 3.47V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 100-LBGA (11x11)
GS2961-IBE3 FAQ
1.How can I place an order for GS2961-IBE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for GS2961-IBE3 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 GS2961-IBE3 reliable?
The price and inventory of GS2961-IBE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GS2961-IBE3 is usually 5 days.
3.What payment methods are accepted for GS2961-IBE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GS2961-IBE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GS2961-IBE3?
GS2961-IBE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GS2961-IBE3 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 GS2961-IBE3?
For technical support, including GS2961-IBE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GS2961-IBE3 requirements.
6.How does Aetrix verify that GS2961-IBE3 is sourced from the original manufacturer or authorized distributors?
All GS2961-IBE3 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 GS2961-IBE3 meets industry standards.
7.What is the process for return or replacement of GS2961-IBE3?
All GS2961-IBE3 units undergo pre-shipment inspection (PSI). If there is an issue with GS2961-IBE3, 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 GS2961-IBE3 part is unused and in its original packaging.
Return procedure for GS2961-IBE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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