Description

The CY7B923-LMB is a high-speed point-to-point communications building block used to transfer data over high-speed serial links. It is part of the HOTLink family of transmitters and receivers and operates at data rates ranging from 160-330 Mbps. The device supports Fibre Channel, IBM ESCON®, DVB-ASI, and ATM protocols and can be used with fiber-optic modules, coaxial cable, and twisted pair media. The CY7B923-LMB is designed as a low-power device, consuming only 350 mW (Tx) and 650 mW (Rx), and has a built-in self-test. It is built using BiCMOS technology and requires a single +5V power supply.

Specifications and features

• Fibre Channel compliant
• IBM ESCON® compliant
• DVB-ASI compliant
• ATM compliant
• Supports 8B/10B-coded or 10-bit unencoded data
• Standard HOTLink: 160–330 Mbps
• High Speed HOTLink: 160–400 Mbps for high-speed applications
• Low Speed HOTLink: 150–160 Mbps for low-cost fiber applications
• TTL synchronous I/O
• No external PLL components required
• Triple PECL 100K serial outputs
• Dual PECL 100K serial inputs
• Single +5V supply
• 28-pin SOIC/PLCC/LCC package options
• 0.8µ BiCMOS technology
• Low power consumption: 350 mW (Tx), 650 mW (Rx)

Application Scenarios

The CY7B923-LMB can be used in point-to-point communications applications such as high-speed data transfer between fiber-optic modules, coaxial cables, and twisted pair media. It is designed for use in systems that require compliance with various protocols including Fibre Channel, IBM ESCON®, DVB-ASI, and ATM. The device can also be used in low-cost fiber applications.

Comparison

• Supports multiple protocols
• Low power consumption
• Built-in self-test function
• Triple PECL 100K serial outputs and dual PECL 100K serial inputs

• Limited data transfer rates compared to some other devices
• Not suitable for applications requiring very high-speed data transfer