Product Detail

M21355
3G/HD/SD-SDI Low Power Quad Reclocker
The M21355 is a quad serial digital video reclocker with integrated trace equalization, automatic rate detect (ARD) circuitry, and a 16:4 crosspoint switch at the input. It operates at SDI data rates ranging from 270 Mbps to 2970 Mbps and is compliant to SMPTE 424M, SMPTE292M, and SMPTE 259M. At 270 Mbps, it also supports DVB-ASI. The M21355 has an input jitter tolerance (IJT) of greater than 0.6 unit intervals (UI) and can provide retimed serial outputs with very low output jitter. The quad reclocker requires a single, external, 27 MHz crystal, which is used as the reference clock for all four channels. It includes per-lane analog input equalization for up to 40" of FR4 trace and two connectors in addition to output de-emphasis. This device features integrated supply regulators, allowing it to be powered from 1.2 V, 1.8 V, 2.5 V, or 3.3 V supply voltages. When operating at 1.2 V, it consumes only 160 mW per channel at 3G-SDI. Furthermore, the power rails for the core, input, and output circuitry are electrically isolated on-chip and as such may be connected to different voltage rails on the board. This feature enables the M21355 to be DC coupled to any upstream or downstream device regardless of its input/output voltage level.
Features
  • Independent, quad channel, multi-rate reclocker
  • I²C, SPI and I²C EEPROM interface
  • Loss of lock (LOL), loss of signal (LOS) and data rate indication
  • Automatic and manual modes for rate indication and selection
  • Mute and configurable auto or manual bypass mode
  • Electrically isolated input, output, and core supply rails
  • Integrated regulators for multi-voltage operation (1.2 V - 3.3 V)
  • 160 mW power consumption per channel (1.2 V operation)
  • Output de-emphasis
  • Input equalization 40" of FR4 trace and two connectors
  • 16:4 input crosspoint
  • Integrated 50O input termination
  • 0.6 UI input jitter tolerance
  • SMPTE 424M, 292M, and 259M-C compliant
  • Industrial operating temperature range ( -40°C to +85°C)
Applications
  • Broadcast Video
  • Enterprise Solutions
  • Optical Networking
Specifications
  • Power Consumption: 0.135 Watts
  • Max Data Rate: 3 Gbps
Part Number Package MACOM Richardson RFPD DigiKey Mouser
M21355EVM
M21355 EVM
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M21355G-12P
Quad Low Power 3G/HD/SD Reclocker
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M21355G-15
Video Quad 3G/HD/SD-SDI Multi-rate
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M21355G-15P
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