VCSEL driver needs no external biasing components

November 1, 2004 Sunnyvale, CA -- Maxim Integrated Products has introduced the MAX3975, a 3.3-V, 10-Gbit/sec packaged VCSEL driver. The MAX3975 is designed for XFP, XENPAK, XPAK, and X2 modules for multimode 10-Gbit/sec applications and is available in a 2.5x2.5-mm CSP package. This driver can be DC coupled to the VCSEL, eliminating the need for bias filters and thus saving cost.

November 1, 2004 Sunnyvale, CA -- Maxim Integrated Products has introduced the MAX3975, a 3.3-V, 10-Gbit/sec packaged VCSEL driver. The MAX3975 is designed for XFP, XENPAK, XPAK, and X2 modules for multimode 10-Gbit/sec applications and is available in a 2.5x2.5-mm CSP package. This driver can be DC coupled to the VCSEL, eliminating the need for bias filters and thus saving cost.

Operating from a single +3.3-V supply, the MAX3975 has a programmable bias-current range of 1.5 to 10 mA and a programmable modulation-current range of 3 to 12 mA. Input sensitivity is 250 mV peak-to-peak and input overload is 1,000 mV peak-to-peak . The MAX3975 generates 0.8 psec of deterministic jitter and 0.35 psec root-mean-square of random jitter, while maintaining 28-psec edge-transition times. The driver also has an output-disable function and an output-polarity-swap feature.

The MAX3975 operates over the 0 degrees Celsius to +85 degrees Celsius temperature range. Prices start at $28.00 (1000-up, FOB USA). Evaluation kits are available to speed designs.

More in Components