VSC7640

VSC7640 www.DataSheet4U.com 4x 3.125 Gbps VCSEL Transmitter Array Features: Low Power: 130 mA at +3.3 V Supply Individual Per Channel Control VCSEL Modulation and Bias Currents Negative Peaking Overcurrent Threshold Digital Serial Control Interface Temperature and Overcurrent Monitors AC- or DC-coupled Inputs Automatic Shutdown for Data Eye Protection 250 µm Channel Spacing IBIAS < 6.4 mA, 27 µA Resolution IMOD < 16 mA, 50 µA Resolution Rise and Fall Times of >50 ps and <110 ps Available as Bare Die The VSC7640 is a high-performance, four-channel VCSEL driver array designed to operate up to 3.125 Gbps for use in 10 Gbps Very Short Reach (VSR) parallel module applications. This device provides four individual VCSEL driver channels, a serial programmable interface temperature sensor for each channel, a temperature sensor, an overcurrent sensor and control for each channel, and monitoring logic for eye safety shutdown and power-on reset. The VSC7640 is designed to interface to a four-channel VCSEL array and to work in conjunction with a microcontroller. Unlike other competitive solutions the VSC7640 features a programmable negative peaking control to compensate for VCSEL slow tail currents. The VSC7640 is a die-level product that is fully tested at the maximum operating speed to guarantee performance and module manufacturing yields. VSC7650 and VSC7651 4x 3.125 Gbps Receiver Arrays with Integrated Limiting Amplifiers Features: Common Cathode Detector Array; CML or PECL Outputs ...