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M21528
3G/HD/SD-SDI Low Power Dual SDI Cable Driver
Description
The M21528 is a very low power, highly integrated, dual cable driver for SMPTE compliant digital video applications. It can drive 2 pairs of 75Ω coaxial cables, or 50Ω equivalent loads, at SDI data rates from 143 Mbps to 2.97 Gbps. The device is capable of outputting SDI signals with jitter values of less than 20 ps p-p, when operating at 2.97 Gbps.
The dual cable driver includes a 2x2 input crosspoint and integrated input and output termination resistors. The M21528, with input equalization for up to 40" of FR4 trace in addition to two connectors and exceptional Output Return Loss (ORL), is ideal for, high speed, 3G-SDI, designs.
The device features integrated supply regulators, allowing it to be powered from 1.8V, 2.5V, or 3.3V supply voltages. When operating at 1.8V, it consumes only 40mW per channel at 2.97Gbps. Furthermore, the power rails for the 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 M21528 to be DC coupled to any upstream device in the 1.2V to 3.3V range.
Features
- Independent, dual channel, multi-rate cable driver
- SMPTE 424M, 292M, and 259M compliant
- Exceptional output return loss with no matching network
- Typical output jitter <20ps pk-pk at 2.97 Gbps
- Integrated, selectable, 75Ω or 50Ω output termination
- Integrated 50Ω input termination
- Very low power design; 40 mW/channel @1.8V
- Input equalization 40" of FR4 trace + 2 connectors
- Selectable slew rate for SD and 3G/HD operation
- Integrated 2x2 crosspoint switch
- Integrated regulators for multi-voltage operation (1.8V - 3.3V)
- Universal DC coupling at the input (1.2V - 3.3V)
- Cable detect with automatic power down and power up upon cable disconnect and re-connect
- Loss of input signal detection with automatic power down and power up upon cable disconnect and re-connect
- Industrial operating temperature range ( -40°C to +85°C)
- Sales / Marketing
- Product Briefs
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M21528 Product Brief (192.83 KB)
April 1, 2010
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M21528 Product Brief (192.83 KB)
- Hardware Design Docs
- RoHS/IPC Report
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M21528G-13 IPC Report (649.97 KB)
March 31, 2011
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M21528G-13 IPC Report (649.97 KB)
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