GENERAL DESCRIPTION
The ADN4604 is a 16 × 16 asynchronous, protocol agnostic, digital crosspoint switch, with 16 differential PECL-/CML compatible inputs and 16 differential CML outputs. The ADN4604 is optimized for nonreturn-to-zero (NRZ) signaling with data rates of up to 4.25 Gbps per port. Each port offers a fixed level of input equalization and programmable output swing and output preemphasis.The ADN4604 nonblocking switch core implements a 16 × 16 crossbar and supports independent channel switching through the serial control interface. The ADN4604 has low latency and very low channel-to-channel skew. An I2C® or SPI interface is used to control the device and provide access to advanced features, such as additional levels of preemphasis and output disable. The ADN4604 is packaged in a 100-lead TQFP package and operates from −40°C to +85°C.

FEATURES
DC to 4.25 Gbps per port NRZ data rate
Programmable receive equalization
   12 dB boost at 2 GHz
   Compensates 40 inches of FR4 at 4.25 Gbps
Programmable transmit preemphasis/deemphasis
   Up to 12 dB boost at 4.25 Gbps
Compensates 40 inches of FR4 at 4.25 Gbps
Low power: 130 mW per channel at 3.3 V (outputs enabled)
16 × 16, fully differential, nonblocking array Double rank connection programming with dual connection maps
Low jitter, typically 20 ps
Flexible I/O supply range
DC- or ac-coupled differential CML inputs
Programmable CML output levels
Per-lane input P/N pair inversion for routing ease
50 Ω on-chip I/O termination
Supports 8b/10b, scrambled or uncoded NRZ data
Serial (I2C slave or SPI) control interface
100-lead TQFP, Pb-free package

APPLICATIONS
Fiber optic network switching
High speed serial backplane routing to OC-48 with FEC
XAUI: 10GBASE-KX4
Gigabit Ethernet over backplane: 1000BASE-KX
1×, 2×, and 4× Fibre Channel
InfiniBand®
Digital video (HDMI, DVI, DisplayPort, 3G-/HD-/SD-SDI)
Data storage networks