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Semtech Corporation GS1670-IBE3
- Part No.:
- GS1670-IBE3
- Manufacturer:
- Semtech Corporation
- Category:
- Video Processing
- Package:
- 100-LBGA
- Datasheet:
-
GS1670-IBE3.pdf
- Description:
- IC VIDEO RECEIVER 100BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,184
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Product details
Overview
GS1670-IBE3 from Semtech is a multi-rate HD/SD SDI receiver IC supporting SMPTE 292 (1.485 Gb/s), SMPTE 259M-C (270 Mb/s), and DVB-ASI protocols. It performs SMPTE de-scrambling, NRZI-to-NRZ decoding, ancillary data extraction, and integrated audio de-embedding for eight channels of 48 kHz audio. Used in broadcast video monitoring systems requiring precise timing and error-resilient serial digital signal recovery.
For engineers reviewing the GS1670-IBE3 datasheet, pinout, applications, or equivalent options, this page delivers verified specifications, real-world use cases in multi-input monitoring and downconversion, validated alternatives, and supply-chain support for broadcast equipment design.
Technical Context
The GS1670-IBE3 implements a fully integrated reclocker with internal VCO and 0.7 UI input jitter tolerance, enabling robust serial digital signal recovery across HD and SD rates. Its four operational modes-SMPTE, DVB-ASI, Data-Through, and Standby-allow flexible configuration for protocol-specific processing or transparent serial-to-parallel conversion.
It supports parallel output in either 20-bit (HD/SD) or 10-bit (HD/SD) multiplexed format with corresponding PCLK frequencies up to 148.5 MHz, and generates H/V/F or CEA-861 timing signals directly. Audio de-embedding complies with SMPTE 272M and 299M, delivering AES/EBU, I2S, left/right-justified outputs with ECC error correction in HD mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Serial Data Rates | 1.485 Gb/s, 1.485/1.001 Gb/s, and 270 Mb/s - enables single-device support for 1080p60, 720p60, and 480i/576i SDI streams. |
| Input Jitter Tolerance | 0.7 UI - ensures reliable lock under high-jitter cable conditions without external retiming. |
| Parallel Output Format | Selectable 20-bit or 10-bit multiplexed - reduces FPGA interface pin count in HD designs while preserving full video fidelity. |
| Audio Channels | 8 channels (2 groups), 48 kHz synchronous/asynchronous - supports embedded audio extraction from HD/SD baseband video with group selection and channel swapping. |
| Power Supplies | 1.2 V core, 1.2 V & 3.3 V analog, selectable 1.8 V or 3.3 V I/O - allows mixed-voltage system integration with low-noise analog partitioning. |
| Operating Temperature | –20 °C to +85 °C - qualified for industrial and broadcast rack-mount equipment environments. |
| Package | 100-ball BGA, 11 mm × 11 mm - compact footprint suitable for dense video processing PCB layouts. |
Pinout & Package
GS1670-IBE3 uses a Pb-free, RoHS-compliant 100-ball fine-pitch BGA package (11 mm × 11 mm, 0.8 mm pitch). Pin functions are defined per Semtech's official pin assignment table (DS 53831-2, pp. 8–14), with dedicated SDI input, loop-through output, parallel data bus (D[19:0]/D[9:0]), timing outputs (H/V/F/DE), audio outputs (AOUT_1/2 through AOUT_7/8), clock inputs (XTAL1/XTAL2), and GSPI host interface signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDI | Serial Digital Input | Differential SDI input with internal 75 Ω termination - accepts SMPTE-compliant HD/SD signals without external termination circuitry. |
| SDO | Serial Digital Loop-Through Output | Reclocked or non-reclocked output - configurable via register to drive external cable driver or feed downstream receiver. |
| D[19:0] | Parallel Video Data Bus | 20-bit multiplexed HD video data - active in 20-bit mode; lower 10 bits reused as 10-bit bus in multiplexed SD mode. |
| H/V/F/DE | Timing Signal Outputs | Genlock-ready sync signals - directly compatible with FPGA video controllers and CEA-861 display interfaces. |
| AOUT_1/2 – AOUT_7/8 | Audio Output Pairs | Dedicated differential AES/EBU or single-ended I2S outputs - each pair supports independent format selection and sample rate handling. |
| XTAL1 / XTAL2 | Clock Reference Input | Drives internal PLL/VCO - accepts 27 MHz crystal for SD operation or 148.5 MHz for HD; supports external clock source. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Reclocker with Internal VCO | Eliminates need for external clock recovery IC and reduces BOM count while maintaining <0.7 UI jitter tolerance. |
| SMPTE 272M/299M Audio De-embedding | Extracts 8-channel embedded audio with ECC correction, channel status parsing, and user-selectable output formats (AES/EBU, I2S, left/right-justified). |
| CEA-861 Timing Generation | Direct generation of H/V/DE signals compliant with HDMI/DVI display standards - enables seamless connection to consumer-grade DACs or display controllers. |
| Programmable Parallel Bus Width | Runtime-selectable 20-bit or 10-bit output mode - optimizes FPGA resource usage and PCB routing density without hardware change. |
| Comprehensive Error Detection | Real-time detection of TRS, line-based CRC, EDH CRC, line number, and ancillary checksum errors - provides actionable status flags for system-level fault reporting. |
Applications
| 1080p30 or 720p60 Monitor | Multi-format Downconverter |
|---|---|
Use Scenario: Real-time HD/SD video monitoring on professional displays with embedded audio playback. IC Role / Device Role / Timing Role: SDI receiver, SMPTE processor, and timing generator - extracts video, audio, and H/V/F sync for DAC and speaker drivers. Use Value: Enables single-chip baseband video/audio demultiplexing with CEA-861 timing, eliminating separate audio de-embedder and sync generator ICs. | Use Scenario: Converting HD-SDI input to SD-SDI output with aspect ratio control and audio pass-through. IC Role / Device Role / Timing Role: HD/SD rate-aware receiver and parallel data source - feeds video memory and downconversion logic while extracting synchronized audio groups. Use Value: Supports dual-rate operation and 10-bit bypass path, allowing SD video to be routed without full HD processing overhead. |
| Multi-input Video Monitoring System | Multi-format Audio De-embedder Module |
Use Scenario: Aggregating multiple HD/SD-SDI sources into a unified on-screen display with audio routing. IC Role / Device Role / Timing Role: Multi-channel SDI front-end - provides parallel video, timing, and AES outputs per input for FPGA-based switching and overlay. Use Value: Scalable architecture using identical GS1670-IBE3 instances per input, simplifying layout and firmware across N-channel designs. | Use Scenario: Extracting and formatting embedded audio from broadcast SDI feeds for analog or digital output distribution. IC Role / Device Role / Timing Role: Dedicated audio de-embedder - decodes SMPTE 272M packets and outputs AES/EBU or I2S with selectable master clock rates (128fs/256fs/512fs). Use Value: Delivers eight independent audio channels with ECC correction and channel status, replacing discrete audio extraction ASICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SDI receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GS1671-IBE3 | Pin-compatible variant with identical functionality but updated errata handling and minor timing refinements per Semtech document 53878. | Same SMPTE/DVB-ASI support, audio de-embedding, and timing generation - intended for new designs where latest silicon revision is preferred. | Select GS1671-IBE3 when designing new broadcast equipment requiring documented errata resolution and extended lifecycle assurance. |
| LMH0384SQ/NOPB | TI SDI receiver with integrated cable equalizer and reclocker; supports same rates but lacks on-chip audio de-embedding and CEA-861 timing generation. | Requires external audio processor and timing IC for full GS1670-IBE3 feature set - used where cable reach >100 m is critical and audio extraction is handled separately. | Choose LMH0384SQ/NOPB only if long-cable equalization is primary requirement and system already includes audio/timing companion ICs. |
Compared with GS1670-IBE3, GS1671-IBE3 offers identical functionality with improved silicon errata coverage, while LMH0384SQ/NOPB trades integrated audio/timing for superior cable equalization - making GS1670-IBE3 optimal for compact, feature-complete broadcast front-ends.
Availability
GS1670-IBE3 is available at Aetrix Electronics and suitable for broadcast video monitoring, multi-format downconversion, professional audio de-embedding, digital VTR interfacing, and CEA-861 display timing generation requiring stable component supply and long-term production continuity.
Supply support for GS1670-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 enterprise, broadcast, and industrial markets.
The GS1670 product line targets professional video infrastructure applications, delivering integrated SDI receivers with SMPTE-compliant processing, audio de-embedding, and display-timing generation in a single BGA package.
FAQ
What video standards does the GS1670-IBE3 support?
The GS1670-IBE3 supports SMPTE 292M (HD-SDI at 1.485 Gb/s), SMPTE 259M-C (SD-SDI at 270 Mb/s), and DVB-ASI (270 Mb/s). It detects and processes video standards including 1080i59.94/60, 720p59.94/60, 480i59.94/60, and 576i50 automatically. The GS1670-IBE3 also decodes SMPTE 352M packet identifiers and handles illegal word remapping per standard compliance requirements.
Does the GS1670-IBE3 require an external crystal or can it use an external clock?
The GS1670-IBE3 accepts either a 27 MHz crystal (for SD operation) or a 148.5 MHz crystal (for HD operation) connected across XTAL1 and XTAL2 pins. It also supports an external single-ended clock source applied to XTAL1 with XTAL2 grounded. The internal oscillator buffer and PLL/VCO generate all required internal clocks, so no additional clock synthesizer is needed for GS1670-IBE3 operation.
How many audio channels can the GS1670-IBE3 de-embed, and what formats does it output?
The GS1670-IBE3 de-embeds up to eight channels of serial digital audio in two groups (AOUT_1/2 through AOUT_7/8), compliant with SMPTE 272M and 299M. Supported output formats include AES/EBU, I2S, left-justified (MSB/LSB first), and right-justified (MSB/LSB first), with sample word lengths of 16, 20, or 24 bits at 48 kHz. The GS1670-IBE3 also provides Word Clock (fs), Serial Clock (64fs), and Audio Master Clock (128fs/256fs/512fs).
What is the function of the GSPI interface on the GS1670-IBE3?
The GSPI (Generic Serial Peripheral Interface) on the GS1670-IBE3 is a 4-wire synchronous serial interface (CS_TMS, SCLK_TCLK, SDIN_TDI, SDOUT_TDO) used for configuration, status readback, and register access. It enables host microcontrollers or FPGAs to enable/disable features, select operating modes (SMPTE/DVB-ASI/Data-Through), configure audio routing, and monitor error flags such as TRS, CRC, and ANC checksum failures in real time.
Can the GS1670-IBE3 operate in a low-power standby mode?
Yes, the GS1670-IBE3 includes a dedicated Standby mode that disables all signal processing while holding parallel outputs static. In this mode, power consumption drops significantly - typical active power is ~300 mW, while standby current is reduced per device characterization in DS 53831-2. The GS1670-IBE3 exits Standby mode upon assertion of the SW_EN pin or host command via GSPI, resuming full operation within microseconds.
GS1670-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)
GS1670-IBE3 FAQ
1.How can I place an order for GS1670-IBE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for GS1670-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 GS1670-IBE3 reliable?
The price and inventory of GS1670-IBE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GS1670-IBE3 is usually 5 days.
3.What payment methods are accepted for GS1670-IBE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GS1670-IBE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GS1670-IBE3?
GS1670-IBE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GS1670-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 GS1670-IBE3?
For technical support, including GS1670-IBE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GS1670-IBE3 requirements.
6.How does Aetrix verify that GS1670-IBE3 is sourced from the original manufacturer or authorized distributors?
All GS1670-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 GS1670-IBE3 meets industry standards.
7.What is the process for return or replacement of GS1670-IBE3?
All GS1670-IBE3 units undergo pre-shipment inspection (PSI). If there is an issue with GS1670-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 GS1670-IBE3 part is unused and in its original packaging.
Return procedure for GS1670-IBE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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