GENERAL DESCRIPTION

The SP8127 is a high-speed, differential output APC amplifier that integrates the photodiode and adjustable gain block on one chip. Independent gain control allows individual adjustment for 780mn and 650nm wavelength operation, as found in CD/DVD optical storage drives. This allows the user to control the laser power of the system in high-speed DVD+/-RW, DVD-RAM and CD-RW systems. The wide 2V output swing also allows better system performance, through improved dynamic range.

FEATURES

• Dual wavelength 650 and 780nm

• 100 MHz Bandwidth

• 300 V/µs Slew Rate

• 5 ns Setting Time

• 10 mV Differential Output Offset Voltage

• 25 mV/oC Output Offset Voltage Drift

• -6/+6 dB External Gain Adjust

• Small 8-pin OPLGA package

APPLICATION

• CD-R, and CD-RW

• DVD+/-R, DVD+/-RW, and DVD-RAM