SM8613AV

www.DataSheet4U.com SM8613AV Laser Switching Driver IC OVERVIEW The SM8613AV is a portable CD player laser diode (LD) driver IC. Conventional portable CD players use a fixed-current LD drive method, but this increases the power dissipation and limits battery life. The SM8613AV employs an intermittent LD driver duty operation to reduce the laser power dissipation, which greatly reduces the current consumption when reading data and extends battery driver life. FEATURES I I PINOUT (Top view) I I I I I I 2.3V low-voltage supply operation Intermittent-duty laser driver built-in (4-times speed read, 38MHz max. intermittent output) Laser switching frequency range: 8.6 to 38MHz Fixed-current drive/intermittent-duty drive switch function Intermittent current duty ratio adjust function Automatic power control (APC) function using luminosity-monitoring photodiode (PD) Low power dissipation Package: 16-pin VSOP (lead-free) LDISET NC MUTE PCK DUTY PLSON NC VSS 1 16 RGAIN NC CGAIN VDD LDIOUT LDON NC APPLICATIONS I 8 9 PDVIN Portable CD player ORDERING INFORMATION Device SM8613AV Package 16-pin VSOP PACKAGE DIMENSIONS (Unit: mm) Weight: 0.07g 4.4 0.2 6.4 0.2 0.10 0.05 5.1 0.2 1.15 0.1 0.275typ 0.15 - + 0.1 0.05 0 to 10 0.65 0.10 0.22 - 0.05 + 0.1 0.12 M 0.5 0.2 NIPPON PRECISION CIRCUITS INC.—1 DataSheet 4 U .com www.DataSheet4U.com SM8613AV BLOCK DIAGRAM VDD LDISET LDON PLSON MUTE Processor LDIOUT RLD Pick-up PCK 2 multiplier Pulse control logic Laser ...