ADN4605 X-Stream™ 4.25 Gbps 40 × 40 Digital Crosspoint Switch

The ADN4605 is a 40 × 40 asynchronous, protocol agnostic, digital crosspoint switch, with 40 differential PECL/CML-compatible inputs and 40 differential programmable CML outputs.

The ADN4605 is optimized for NRZ signaling with data rates of up to 4.25 Gbps per port. Each port offers adjustable levels of input equalization, programmable output swing, and output preemphasis/deemphasis.

The ADN4605 nonblocking switch core implements a 40 × 40 crossbar and supports independent channel switching through serial and parallel control interfaces. The ADN4605 has low latency and very low channel-to-channel skew.

An I2C, SPI, or parallel interface is used to communicate with the device for control of connectivity and other features.

The ADN4605 is assembled in a 35 mm × 35 mm, 352 BGA package and operates over a temperature range of −40°C to +85°C.

Applications

Digital video (HDMI, DVI, DisplayPort, 3G/HD/SD-SDI)
Fiber optic network switching
High-speed serial backplane routing to OC-48 with FEC
XAUI, 4x Fibre Channel, Infiniband®, and GbE over backplane
Data storage networks

Features and Benefits

DC to 4.25 Gbps per port NRZ data rate
Adjustable receive equalization
3 dB, 6 dB, or 12 dB boost
Compensates over 40 inches of FR4 at 4.25 Gbps
Adjustable transmit preemphasis/deemphasis
Programmable boost and output level
Compensates over 40 inches of FR4 at 4.25 Gbps
Low Power
105 mW per channel at 2.5 V (400 mV p-p differential output level swing)
Low jitter, typically <25 ps
Flexible 2.5 V to 3.3 V supply range

40 × 40, fully differential, nonblocking array
Double rank connection programming with dual maps
DC- or ac-coupled differential PECL/CML inputs
Differential CML outputs
Per-lane polarity inversion for routing ease
50 Ω on-chip I/O termination with disable feature
Supports 8b10b, scrambled or uncoded NRZ data
Serial (I2C slave or SPI) control interface
Parallel control interface