125m / 156m Laser Diode Driver Apc - Asahi Kasei Microsystems

The AK2573A is a 1chip LDD (Laser Diode Driver) and an APC (Auto Power Control) for laser direct modulation appl ication. It contains up to 156M LDD, programmable duty adjustment, BIAS and modulation currents, a digital feedback circuit, BIAS and modulation current monitors, failure alarms, I2CTM Interface an EEPROM for storing LD characteristics and user information, and TXFAULT detection for SFP appl ication. The AK2573A has two APC functions; APC FF (Feed- forward) and APC FB (Feedback). APC FF supplies a programmed current in response to the temperature. APC FB provides a stable auto power control function with an internal digital feedback algorithm. All program and operational functions CAN be set through the I2CTM compatible Interface and stored in the on-chip EEPROM By AKM Semiconductor, Inc.
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AK2573A Application circuits
AK2573A circuits
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