Description
The AK2557 is a 4-channel cathode common LDD (Laser Diode Driver) suitable for MFPs (Multi Function Printer) and LBPs (Laser Beam Printer).
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 Internal APC Adjustment Circuit with Digital Interface.
- Monitor PD Current Input for 4 Beams LD and Multi-Beams LD (by Cascade Connection).
- “BIAS_APC” (Auto “Ibias” Setting).
AK2557-AKM.pdf
