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參數(shù)資料
| 型號(hào)： | SP8110ER |
| 英文描述： | Two-Channel Modulation IC for Laser Diode |
| 中文描述： | 雙通道調(diào)制激光二極管芯片 |
| 文件頁(yè)數(shù)： | 1/3頁(yè) |
| 文件大?。?/td> | 109K |
| 代理商： | SP8110ER |
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SP8110
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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IA
IB
Rf
Vcc
Vcc-out
LD_A
GND
LD_B
SP8110
FEATURES
5V Single supply voltage
Two output channels, suitable for different
wavelength laser diodes
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
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.
Two-Channel Modulation IC for Laser Diode
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