Datasheet > SP8110

SP8110

更新时间： 2024-09-30 22:42:51

品牌	Logo	应用领域
西伯斯 - SIPEX		二极管激光二极管射频微波
页数	文件大小	规格书
3页	111K
描述
Two-Channel Modulation IC for Laser Diode

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SP8110 数据手册

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SP8110

Two-Channel Modulation IC for Laser Diode

FEATURES

•

5V Single supply voltage

Two output channels, suitable for different

wavelength laser diodes

Vcc-out

LD_A

GND

•

Oscillator frequency is adjustable in both

channels simultaneously

Oscillator amplitude is adjustable for each

output separately up to 130mA

Operates two grounded laser diodes

Small DFN 2 x 3mm package

SP8110

Vcc

LD_B

•

APPLICATION

DVD-ROM or DVD-Video applications utilizing twin laser diodes

•

GENERAL DESCRIPTION

The SP8110 is a Two-Channel Modulation IC utilizing high frequency current to suppress the

noise of grounded laser diodes. Modulation frequency is adjusted in both channels

simultaneously by an external resistor Rf tied to the ground. The amplitude of the high

frequency current is set for each channel separately by a DC input current applied to the

appropriate input pin (IA or IB for Laser A or Laser B, respectively). Current gain from input to

output is 100mA/mA (typical).

The input current at pins IA and IB is monitored to determine which channel is active. In the

event input current in both channels is below the active threshold level (approximately 2.65mA),

the SP8110 will enter Power Save mode. In the event a valid input current above the active

threshold level is present on both inputs, an Error mode is assumed and the outputs of both

channels are disabled. Supply current levels in Power Save and Error modes are below 0.2 and

0.8 mA respectively (maximum values).

The SP8110 is manufactured in 0.5/0.6 µm CMOS technology.

Rev 0.1 (12-03-03): SP8110 – Two-Channel Modulation IC

SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-978-667-8700.

SIPEX CONFIDENTIAL, PRELIMINARY & PROPRIETARY. DO NOT DISTRIBUTE

OR COPY

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