Renesas Electronics Corporation

The ISL58792 is a highly integrated, single supply laser diode driver designed to support multi-standard writable optical drives in CD, DVD, and Blu-Ray formats at various speeds. It is a ‘hybrid’ part having an interface compatible with a conventional LDD, but an internal architecture similar to a write strategy LDD. This combination adds versatility to the conventional interface. The rise time, fall time and overshoot of all outputs are adjustable to compensate for high and low resistance lasers. The ISL58792 architecture includes dual write current banks, which can be selected using the bank select line, BSEL. This eliminates the need to synchronize the serial port to the media. The oscillator is internally activated through program assignment to attach to any WEN state. The WEN lines have internal 100 terminators. There is a skew detector on the WEN receiver outputs.

The ISL59110 is a single rail-to-rail 3-pole output reconstruction filter with a -3dB roll-off frequency of 8MHz and a slew rate of 40V/µs, with input signal DC restoration accomplished with an internal sync tip clamp. Operating from single supplies ranging from +2. 5V to +3. 6V and sinking an ultra-low 2mA quiescent current, the ISL59110 is ideally suited for low power, battery-operated applications. It also features inputs capable of reaching down to 0. 15V below the negative rail. Additionally, an enable high pin shuts the part down in under 14ns. The ISL59110 is designed to meet the needs for very low power and bandwidth required in battery-operated communication, instrumentation, and modern industrial applications such as video on demand, cable set-top boxes, DVD players, and HDTV. The ISL59110 is offered in a space-saving SC-70 package guaranteed to a 1mm maximum height constraint and specified for operation from -40°C to +85°C temperature range