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参数资料
| 型号： | S7727 |
| 元件分类： | 光电元器件 |
| 英文描述： | LOGIC OUTPUT PHOTO DETECTOR |
| 封装： | PLASTIC PACKAGE-4 |
| 文件页数： | 1/2页 |
| 文件大小： | 66K |
| 代理商： | S7727 |
S7726 is 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.
PHOTO
IC
Photo IC for optical link
Receiver for 156 Mbps POF communications
S7727
Features
l Photo IC receiver for POF data link
l Monolithic structure immune from external noise
l Data rates from 4 Mbps to 156 Mbps
l P-ECL voltage conversion output
(Note: Unlike normal P-ECL output, S7727 output
cannot be terminated with 50
9.)
l Designed to be used with L9534 or L7726
Applications
l Plastic optical fiber communications (FA, office machine,
home automation, LAN)
l Data transmission in locations subject to high
electromagnetic noise
1
s Absolute maximum ratings (Ta=25
°C)
Parameter
Symbol
Value
Unit
Supply voltage
Vcc
-0.5 to +7.0
V
Output voltage
Vo
-0.5 to Vcc + 0.5
V
Output current
Io
8
mA
Power dissipation
Pmax
250 *
1
mW
Operating temperature
Topr
-20 to +70
°C
Storage temperature
Tstg
-40 to +85
°C
Soldering
-
230 °C, 5 s, at least 1.5 mm away from package surface
-
*1: Derate power dissipation at a rate of 1.7 mW/°C above Ta=25 °C
s Electrical and optical characteristics (Ta=25
°C, Vcc=5.0 V)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Data rate
fD
Bi-phase signal
NRZ conversion
4
-
156
Mbps
Current consumption
Icc
*
2, *3, *6
-
40
mA
High level output voltage
Voh
Ioh= -1 mA *
2, *3, *6
3.9
-
4.3
V
Low level output voltage
Vol
Iol= -0.5 A *
2, *3, *6
2.9
-
3.4
V
Minimum overload
Pimax
*
2, *3, *4, *5, *6
-2
-
dBm
Minimum receiver input power
Pimin
*
2, *3, *4, *5, *6
-
-22
dBm
Rise time
tr
-
3
ns
Fall time
tf
10 to 90 % *
2, *3, *6
-
3
ns
Pulse width distortion
T*2, *3, *4, *6
-3
-
3
ns
Jitter
tj
*
2, *3, *4, *6
-
3
ns
*2: Measured with 156 Mbps input signal (Bi-phase signal)
*3: A 3 pF capacitor is connected to GND as a capacitive load (including parasitic capacitance such as probes, connectors and
evaluation PCB patterns)
*4: An optical input waveform is generated with a Hamamatsu standard transmitter.
*5: A detectable signal level is an average value, measured using a plastic fiber (GH4001 made by Mitsubishi Rayon).
*6: A 3 k
resistor is externally connected between Q and GND and also between QB and GND.
Note)
q A bypass capacitor (0.1 F) connected at a position within 2 mm from the lead, and a 4.7 F capacitor is also connected to the
power supply line nearby.
q The optical axis of the package lens is exactly aligned with the center axis of the optical plug, and the gap between the lens surface
and the optical reference plane of the plug is 0.1 mm.
q If modulated light at 4 Mbps or less (including DC light and no light input) is input to S7727, the high and low levels cannot be
discerned.
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