MITSUBISHI<LINEAR ICS>
M61084FP
PREAMPLIFIER WITH PHOTODETECTOR FOR OPTICAL PICKUP
MITSUBISHI
ELECTRIC
( / 5 )
DESCRIPTION
The M61084FP is a semiconductor integrated circuit developed for DVD and CD-ROM (8 times
speed) players. The IC is housed in a 12-pin clear molded plastic package and contains 8
preamplifiers with divided photodetectors.
FEATURES
8 amplifiers with divided
photodetectors
Using small package ( 5.0X4.0X1.5 mm )
For differential push-pull technique
and single beam phase difference technique
High Band preamplifier circuit (DC-20MHz)
For red reys laser diode (ex.
=635 nm)
APPLICATION
DVD , CD-ROM etc.
RECOMMENDED OPERATING CONDITIONS
Supply voltage 4.5V to 5.5V
Rated supply voltage 5.0V
1
2
3
4
5
6
PIN CONFIGURATION
Vcc
TEST
AOUT
FOUT
DOUT
EOUT
COUT
GND
BOUT
HOUT
Vref
GOUT
Outline 12C2E
BLOCK DIAGRAM
AOUT
DOUT
FOUT
Vcc
GND
GOUT
BOUT
COUT
TEST
Vref
EOUT
HOUT
A
F
D
E
C
H
B
G
+
1
2
3
4
5
6
7
8
9
10
11
12
1
12
11
10
9
8
7
+
+
+
+
+
+
+
MITSUBISHI<LINEAR ICS>
M61084FP
PREAMPLIFIER WITH PHOTODETECTOR FOR OPTICAL PICKUP
MITSUBISHI
ELECTRIC
( / 5 )
Test conditions
Min
Typ
Max
Unit
In the dark
Po=10W
=635nm
Output A to D without offset voltage
Po=10W
=635nm
Output E to H without offset voltage
In the dark (A+B) - (C+D)
In the dark (A+D) - (B+C)
In the dark E - F
In the dark
Output A to H
3.5
5.0
6.5
210
270
330
400
500
600
-15
0
+15
-15
0
+15
-15
0
+15
-15
0
+15
Limits
mA
mV
mV
mV
mV
Parameter
Circuit current
Output voltage
Output offset voltage
Delta output
offset voltage
Frequency
characteristic
Output noise
voltage
Po=10W/cell
=635nm
30%modulation
3 dB down
Output A to D
Po=10W/cell
=635nm
30%modulation
3 dBdown
Output E to H
Output A to D (at f=5MHz)
15
20
-
1.0
1.5
-
-
-80
-74
MHz
dBm
Symbol
Icc
Vo
V
V
OFF
fc
V
NO
ELECTRICAL CHARACTERISTICS (VCC=5.0V,Ta=25C,unless otherwise noted)
In the dark G - H
-15
0
+15
V
OMAX
Maximum
Output voltage
Output A to H maximum voltage
at Vcc=5.0 v
3.5
-
-
V
Optical sensitivity
on SPD
=635nm Output A to H
-
0.3
-
A/W
3
OFF
R
MITSUBISHI<LINEAR ICS>
M61084FP
PREAMPLIFIER WITH PHOTODETECTOR FOR OPTICAL PICKUP
MITSUBISHI
ELECTRIC
( / 5 )
5
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