sp8126 Exar Corporation, sp8126 Datasheet
sp8126
Manufacturer Part Number
sp8126
Description
High Speed Differential Apc Amplifier
Manufacturer
Exar Corporation
Datasheet
1.SP8126.pdf
(8 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
sp8126CB-3/TR
Manufacturer:
VALOR
Quantity:
686
FEATURES
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.
Figure 1. SP8126B Functional Diagram and Typical Application
Rev:B Date: 3/18/04
The SP8126B is a high-speed, differential output APC amplifier that integrates the photodiode
GND
V
CC
Dual Wavelength
Slew Rate of 300V/µs
Fast Settling Time - 7ns
Gain Control
2V Output Swing
Low Offset Voltage: < 10mV
Low Offset Drift: < 20µV/°C
12dB External Gain Adjust Range
+
-
TIA
High Speed Differential APC Amplifier
R
GCOM
SP8126B High Speed Differential APC Amplifier
R
PRELIMINARY
Gain Control
G1
GAIN
R
GAIN1
R
G2
1
R
GAIN2
APPLICATIONS
500
R3
R
GCOM
GAIN
GND
V
DVDRW
DVDRAM
CDRW
CC
+
-
Buffer
+
-
Buffer
1
2
3
4
500
R1
500
R2
SP8126B
8 Pin COB
V
V
1V
1V
OUT +
OUT -
© Copyright 2004 Sipex Corporation
P-P
P-P
(Depend
SP8126B
on FPC)
DESCRIPTION
(Flexible Flat Cable)
8
7
6
5
50pF
50pF
V
R
R
V
OUT
OUT
GAIN2
GAIN1
1k
1k
+
-