LMH6525

LMH6525, LMH6526 www.ti.com SNOSAF1B – JUNE 2005 – REVISED MARCH 2013 LMH6525/LMH6526 Four–Channel Laser Diode Driver with Dual Output Check for Samples: LMH6525, LMH6526 FEATURES 1 23 Fast Switching: Rise and Fall Times: 0.6/1.0 ns. Low Voltage Differential Signaling (LVDS) Channels Enable Interface for the Fast Switching Lines Low Output Current Noise: 0.24 nA/√Hz Dual Output: Selectable by SELA/B Pin (Active HIGH) – SELA = LMH6526 SEB = LMH6525 Four Independent Current Channels – Gain of 300, 300 mA Write Channel – Gain of 150, 150 mA Low-Noise Read Channel – Two Gain of 150, 150 mA Write Channels – 600 mA Minimum Combined Output Current Integrated AC Coupled HFM Oscillator – Selectable Frequency and Amplitude Setting – By External Resistors – 200 MHz to 600 MHz Frequency Range – Amplitude to 100 mA Peak-to-Peak Modulation Complete Shutdown by ENABLE Pin 5V Single-Supply Operation Logic inputs TTL and CMOS compatible Space Saving Package (OFN) LMH6525 has Differential Enable Oscillator Inputs LMH6526 has Single Ended Enable Oscillator Inputs APPLICATIONS Combination DVD/CD Recordable and Rewritable Drives DVD Camcorders DVD Recorders DESCRIPTION The LMH™6525/6526 is a laser diode driver for use in combination DVD/CD recordable and rewritable systems. The part contains two high-current outputs for reading and writing the DVD (650 nm) and CD (780 nm) lasers. Functionality includes read, write and erase through four separate switched current ...