AK2557 Datasheet (AKM) - 4ch Cathode Common LDD

AK2557, 4ch Cathode Common LDD

The AK2557 is a 4-channel cathode common LDD (Laser Diode Driver) suitable for MFPs (Multi Function Printer) and LBPs (Laser Beam Printer).

The AK2557 equips a 200MHz [Max.] LDD that switches the LD current, current-DACs that set the operation current of LD and a feed-back digital APC (Auto Power Co

AK2557 Features

* 4ch Cathode Common LDD Switching LD Current at 200MHz [Max]

* 9-bit Current-DAC for “Ibias”: Maximum Output Current = 45mA [Typ.]

* 9-bit Current-DAC for “Isw” with AGC (Auto Gain Control): Maximum Output Current = 90mA [Typ.]

* Feed-Back Digital APC (APC_FB) and In