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參數(shù)資料
| 型號(hào)： | SP8027CG |
| 英文描述： | High Speed, Constant Bandwidth Differential APC Amplifier |
| 中文描述： | 高速，恒定帶寬差分apc的放大器 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 110K |
| 代理商： | SP8027CG |
ADVANCED
SP8027
Rev 0.0 11/22/04. SP8027 High Speed Differential APC Amplifier
Copyright 2004 Sipex Corporation
SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-408-934-7500.
SIPEX CONFIDENTIAL, PRELIMINARY & PROPRIETARY. DO NOT DISTRIBUTE OR
COPY
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VCC
GAIN
VBG
GND
SP8027
8-Pin
OPLGA
VOUT+
VOUT-
VG2
VG1
High Speed, Constant Bandwidth
Differential APC Amplifier
FEATURES
APPLICATION
CD-R, and CD-RW
DVD+/-R, DVD+/-RW, and DVD-RAM
GENERAL DESCRIPTION
The SP8027 represents the next generation in Automatic Power Control (APC) amplifiers designed
specifically for demanding pick-up head applications. Whereas typical APC products exhibit
degradation of bandwidth and slower settling times at higher gain levels, the SP8027 features
constant bandwidth (150MHz) and fast settling times (5ns) across the entire gain adjust range.
With its integrated photo detector, the SP8027 monitors light intensity of the laser diode in CD-R,
CD-RW, DVD+/-R, DVD+/-RW, and DVD-RAM assemblies and converts this light to an output
voltage. The magnitude of this voltage signal corresponds to the laser power intensity and is
subsequently fed back to the laser diode driver to control the laser output power.
The SP8027 on-chip photo detector transforms incident laser light into a proportional current, which
is then converted to a voltage through a trans-impedance amplifier. The SP8027 achieves an
unparalleled level of performance by combining excellent DC stability and low noise with
outstanding AC performance.
The SP8027 is offered with a nominal sensitivity 3600 V/W and is packaged in a 3.0 x 3.5 mm, 8-
lead OPLGA package.
Dual wavelength 650 and 780nm
150 MHz Bandwidth over all gains
400 V/μs Slew Rate
5 ns Setting Time
10 mV Differential Output Offset Voltage
Potentiometer, Voltage or DAC programmable gain
± 6 dB External Gain Adjust
Small 8-pin OPLGA package
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