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參數(shù)資料
| 型號： | LDSF0120ST |
| 元件分類： | 光接收 |
| 英文描述： | FIBER OPTIC RECEIVER, 168Mbps, THROUGH HOLE MOUNT, ST CONNECTOR |
| 文件頁數(shù)： | 3/4頁 |
| 文件大小： | 253K |
| 代理商： | LDSF0120ST |
Pin
Pin Assignments
Function
Photodetector
bias (-5V)
0.1 F
-5V
1
330
0.1 F
2.2K
0.1 F
2.2K
LDPF
LDPW
LDSF
+5V
14
KVn
Tg
2. Sensitivity is the minimum optical input power required
to achieve a targeted bit error rate (BER). Sensitivity is
determined by measuring the noise voltage at the
output of a 3-pole Butterworth filter with a bandwidth
equal to the minimum required bandwidth. Sensiti-
vity is calculated by using the noise voltage value in
the following equation:
Sensitivity (dBm) = 10 log
where:
K is a constant determined by the target BER,
i.e.
Vn is the noise voltage in millivolts.
Tg is the transfer gain in V/W. It is defined as
the voltage out per unit of optical power into
the PINFET. This can be calculated using:
Tg = Responsivity (A/W multiplied by
Transimpedance (ohms).
3. To calculate the output voltage (peak-to-peak) of a
PINFET, use the following equation:
Vout =2Pin xTg
where:
Pin is the average optical input power in watts.
Tg is defined in 2 above.
4. When designing a receiver using LDI's transimpedance
PINFETs, the following practices should be observed:
a. Match the output impedance to 1 Kohm. A
suitable schematic is shown herein.
b. For maximum stability, use a low impedance
ground return in your design.
c. If your voltage supply lines are susceptible to
noise, use a full LC filter close to the PINFET
module.
BER
10-9
10-10
K
6.0
6.4
10-4400-0008 Rev. B
1
2,6,9,11
12,13,14
3,5,8
4
7
10
-5 V detector bias
no connection
ground
-5 volts
output
+5 volts
Functional Diagram - LDPF Series Receiver
Connector, optional
1.0 meter nominal fiber length
0.38
[9.5]
0.19
[4.7]
0.21
[5.2]
0.10 [2.51]
0.018 [0.46]
CL
0.10 [2.54]
0.82 [20.8]
0.30
[7.6]
0.50
[12.7]
O
0.75 [19.1]
Outline Drawing
Laser Diode's standard or custom bandwidth tuned
products offer optimized sensitivity at the specified
bandwidth. A PINFET essentially operates as an analog
receiver. However, in the great majority of applications,
they are used to receive digital information. A given
bandwidth will typically support an NRZ data rate of 1.4
times the specified 3 dB bandwidth.
1.
Typical Interface - LDPF, LDPW, and LDSF Series
Application Notes:
Characteristic testing
of PINFET receivers.
Fiber Pigtail
-5V
Pins
3,5,8
Pin 4
-5V
+5V
Pin 10
Pin 7
Output
Pin 1
TOP
VIEW
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| LDPW0110FC | FIBER OPTIC RECEIVER, 155Mbps, THROUGH HOLE MOUNT, FC/PC CONNECTOR |
| LDPF0120FC | FIBER OPTIC RECEIVER, 168Mbps, THROUGH HOLE MOUNT, FC/PC CONNECTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LDSF0120-ST | 制造商:MA-COM 制造商全稱:M/A-COM Technology Solutions, Inc. 功能描述:PINFET optical receiver modules |
| LDSF0120-STR | 制造商:MA-COM 制造商全稱:M/A-COM Technology Solutions, Inc. 功能描述:PINFET optical receiver modules |
| LDSF0250-FC | 制造商:MA-COM 制造商全稱:M/A-COM Technology Solutions, Inc. 功能描述:PINFET optical receiver modules |
| LDSF0250-FCR | 制造商:MA-COM 制造商全稱:M/A-COM Technology Solutions, Inc. 功能描述:PINFET optical receiver modules |
| LDSF0250-LC | 制造商:MA-COM 制造商全稱:M/A-COM Technology Solutions, Inc. 功能描述:PINFET optical receiver modules |
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