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參數(shù)資料
| 型號(hào)： | SP8126CB-3/TR |
| 廠商： | EXAR CORP |
| 元件分類(lèi)： | 光電元器件 |
| 英文描述： | LINEAR OUTPUT PHOTO DETECTOR |
| 封裝： | 3 X 3.50 MM, COB, 8 PIN |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 91K |
| 代理商： | SP8126CB-3/TR |
1
Rev:B Date: 3/18/04
SP8126B High Speed Differential APC Amplifier
Copyright 2004 Sipex Corporation
VOUT+
TIA
Buffer
RGCOM
-
+
-
+
50pF
1k
50pF
1k
1VP-P
(Flexible Flat Cable)
1VP-P
R1
500
R2
500
RG1
RGAIN2
Gain Control
RGAIN1
RG2
GAIN
GND
VOUT-
VCC
R3
500
(Depend
on FPC)
High Speed Differential APC Amplifier
SP8126B
FEATURES
■ Dual Wavelength
■ Slew Rate of 300V/s
■ Fast Settling Time - 7ns
■ Gain Control
■ 2V Output Swing
■ Low Offset Voltage: < 10mV
■ Low Offset Drift: < 20V/°C
■ 12dB External Gain Adjust Range
Figure 1. SP8126B Functional Diagram and Typical Application
DESCRIPTION
The SP8126B 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 DVDRW, DVDRAM and CDRW
systems. The wide 2V output swing also allows better system performance, through improved
dynamic range.
APPLICATIONS
■ DVDRW
■ DVDRAM
■ CDRW
PRELIMINARY
1
2
8
7
6
5
3
4
GAIN
GND
VCC
VOUT +
SP8126B
8 Pin COB
VOUT -
RGCOM
RGAIN1
RGAIN2
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