Recently introduced by Analog Devices is a series of multipoint, low-voltage, differential signalling (M-LVDS) transceivers with the highest ESD (electrostatic discharge) protection of any multipoint LVDS transceivers.
The ADN469xE series includes eight transceivers, each of which is capable of connecting 32 data/clock nodes using a single differential cable pair at data rates of 100 Mbps or 200 Mbps. Traditional LVDS communication links, by comparison, must use 32 separate point-to-point nodes, which significantly increases power, connector size, cabling costs and total board space.
The devices deliver 8 kV IEC ESD protection to improve the reliability of insertable/removable boards and cards used in wireless base station and networking infrastructure, data acquisition, automated test equipment and other high-speed, highly networked backplane and cable applications.
Available in half- and full-duplex versions, the transceivers are fully compliant with the TIA/EIA-899 M-LVDS standard. The ADN4691E/ADN4693E are Type 1 receivers with 200 Mbps data rates that include symmetrical input threshold voltage and are designed to improve clock timing performance.
The ADN4696E/ADN4697E Type 2 receivers with 200 Mbps data rates are designed for data applications and feature a receiver-input threshold voltage offset of -100 mV. This ensures a known receiver output state when the bus is idle (bus-idle failsafe) or the bus inputs are open (open-circuit fail-safe).
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