LED/PHOTO IC
Red LED/Photo IC for optical link
L7726/S7727
Emitter/receiver for 156 Mbps POF communications
L7726 and S7726 are designed for high-speed POF (Plastic Optical Fiber) communications. Both devices are molded into miniature plastic
packages with lenses, allowing easy and efficient coupling to a POF. S7727 uses a monolithic photo IC that ensures high resistance to external
noise and high reliability, and provides P-ECL voltage conversion output.
Features
L7726
Applications
home automation, LAN)
l
Red LED for POF data link
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Data transmission in locations subject to high
l
650 nm emission suitable for POF communications
electromagnetic noise
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High-speed response: fc=100 MHz Typ.
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High output power: Po= -1.5 dBm (I
F
=30 mA,
蠁1
mm, POF)
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Plastic optical fiber communications (FA, office machine,
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Photo IC receiver for POF data link
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Monolithic structure immune from external noise
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Data rates from 4 Mbps to 156 Mbps
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P-ECL voltage conversion output
(Note: Unlike normal P-ECL output, S7727 output
cannot be terminated with 50
9
.)
S7727
L7726
I
Absolute maximum ratings (Ta=25
擄C)
Parameter
Forward current
Power dissipation
Operating temperature
Storage temperature
Soldering
Symbol
I
.
Pmax
Topr
Tstg
-
Value
50
250
*1
0 to 60
-40 to +85
230 擄C, 5 s, at least 1.5 mm away from package surface
Unit
mA
mW
擄C
擄C
-
*1: Derate power dissipation at a rate of 1.7mW/擄C above Ta=25 擄C
I
Electrical and optical characteristics (Ta=25
擄C)
Parameter
Forward voltage
Peak emission wavelength
Spectral half width (FWHM)
Fiber coupled optical power
Cut-off frequency
Symbol
V
.
lp
Dl
Po
fc
Condition
I
.
=30 mA
I
.
=30 mA
I
.
=30 mA
I
.
=30 mA
*2
I
.
=30 mA
Min.
-
640
-
-
-
Typ.
2.3
650
10
-1.5
100
Max.
-
660
-
-
-
Unit
V
nm
nm
dBm
MHz
*2: Measured using a 1-meter long optical fiber (MH4001 made by Mitsubishi Rayon).
1
2
