Semtech GS12170-IBE3 SDI/HDMI Bridge Chip
Semtech GS12170-IBE3 SDI/HDMI Bridge Chip supports SDI interface standards from HD-SDI (ST 292) to UHD-SDI at 12Gb/s (ST 2082-1). This chip can operate in one of three modes: HDMI to SDI bridge mode, SDI to HDMI bridge mode, and SDI gearbox mode. The GS12170-IBE3 SDI/HDMI bridge chip offers the ideal solution for chip-to-chip connectivity with TMDS signaling for UHDTV products requiring a 12Gb/s UHD-SDI interface. In the HDMI to SDI mode, GS12170-IBE3 extracts all HDMI InfoFrames, including HDR metadata, and video payload information automatically converts to SMPTE ST 352 packets. In the SDI to HDMI mode, the chip extracts SDI SMPTE ST 352 packets and converts them to equivalent InfoFrames. In SDI gearbox mode, the device automatically records the output serial stream according to the ST 352 packets received.
The GS12170-IBE3 is packaged in a space-saving 12mm x 12mm 196-ball BGA package. This GS12170-IBE3 SDI/HDMI bridge chip features automatic skew compensation for multi-link SDI inputs and automatic input link order handling for multi-link SDI inputs. The GS12170-IBE3 bridge chip offers low power operation of less than 2W typically. This chip operates from 1.71V to 1.89V supply voltage range and -40°C to 85°C temperature range. This GS12170-IBE3 SDI/HDMI bridge chip is ideally used in UHDTV monitors and displays UHDTV cameras, camcorders, and HDMI extenders.
Features
- Extraction and insertion of HDMI InfoFrames
- Converts between single-link and multi-link SDI interfaces from HD-SDI to 12Gb/s UHD-SDI
- Gennum Serial Peripheral Interface (GSPI) serial control and monitoring interface
- Extraction and insertion of SDI ancillary data packets
- Extraction and insertion of Time Code (TC) data packets
- Dedicated AES/EBU or I2S serial digital audio inputs and outputs
- Supports up to 16 channels of digital audio de-embedding and embedding at 48kHz or 96kHz:
- Simultaneous de-embedding and embedding in all modes of operation
- Fully standards-compliant SDI interface bridging to and from HDMI 2:
- Support for 4K video formats up to 60Hz at 10-bit 4:2:2 sampling
- Three modes of operation:
- SDI to HDMI bridge mode
- HDMI to SDI bridge mode
- SDI to SDI gearbox mode
- SDI gearbox mode also supports all functions and features of the GS12070-IBE3 UHD-SDI gearbox
- Automatic and manual handling of SMPTE ST 352 packets
- Automatic skew compensation for multi-link SDI inputs
- Automatic input link order handling for multi-link SDI inputs
- Gennum Serial Peripheral Interface (GSPI) serial control and monitoring interface
- Pb-free, Halogen-free, RoHS/WEEE compliant
Specifications
- <2W typical power
- 1.71V to 1.89V supply voltage range
- 12mm x 12mm 196-ball BGA (0.8mm pitch)
- Single 27MHz reference clock/crystal input
- Four 100Ω differential inputs with input trace equalization up to 12dB
- Four 100Ω differential outputs with individually selectable output swing adjust
- -40°C to 85°C operating temperature range
Applications
- UHDTV monitors and displays
- UHDTV cameras and camcorders
- SDI/HDMI converters
- HDMI extenders
- SDI I/O adapters
- SDI/HDMI switchers and routers
Block diagram
