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QDFT-045-050 [ETC]

FIBER OPTIC RECEIVER ; 光纤接收器\n
QDFT-045-050
型号： QDFT-045-050
厂家： ETC    ETC
描述：

FIBER OPTIC RECEIVER
光纤接收器\n

光纤 光电
文件： 总4页 (文件大小：583K)
中文：  中文翻译
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QDFT Series  
High-Sensitivity Transimpedance  
pinFET Receiver  
I
Fixed transimpedance circuit configuration  
I
I
I
Hybrid construction  
Industry-standard 14-pin dual-in-line package  
Multimode fiber  
Description  
The Corning Lasertron QDFT pinFET module is a high-sensitivity detector and hybrid  
preamplifier module designed for fiber-optic receivers operating at data rates up to and  
exceeding 420 Mb/s at 1300 and 1550 nm wavelengths. The transimpedance circuitry  
providesexcellentsensitivityandsuperiordynamicrange. Thehighsensitivityresultsfrom  
use of an advanced GaInAs detector element having <10 nA leakage and a responsivity of  
>0.8 A/W at 1300 and 1550 nm.  
Sensitivitiesrangefrom-53dBmat18Mb/s, to-43dBmat140Mb/s. Opticaldynamic  
range exceeds 25 dB. Operation requires only +5 V power supplies at modest bias currents.  
The QDFT is packaged in a hermetically sealed, low-profile, 14-pin DIL package and is  
pigtailed with multimode fiber.  
Applications  
The Corning Lasertron QDFT pinFET module consists of a low-capacitance,  
front-illuminated planar detector element followed by a hybrid transimpedance amplifier.  
Benefits of the transimpedance design of the QDFT pinFET module include excellent  
dynamic range and ease of implementation. The QDFT pinFET requires no equalization  
and is self-biasing. Simply by applying +5 V and -5 V supplies to the amplifier circuit, and  
a -5 V supply to the detector element, the device is ready to receive an optical input through  
a multimode fiber-optic pigtail.  
TRANSIMPEDANCE DESIGN CIRCUITRY  
The diagram to the left illustrates the fundamental operation of a QDFT pinFET. As  
incident light illuminates the detector, a small signal current is produced which is directly  
proportional to the amplitude of the incident light source (Pi) and the responsivity (R) of  
the detector.  
This simple relationship of R • Pi yields the output signal current (Is). This current is  
thenconvertedtoavoltagewiththetransimpedanceresistor(Zt)andagainblockamplifier.  
The resulting signal voltage (Vs) is simply derived from the quantities Is • Zt.  
Pin Connections  
1
2
3
4
5
6
7
8
9
Detector Bias (-5 V)  
NC  
Case Ground  
-5 V  
Case Ground  
NC  
Output  
(Bias and interface circuit)  
Case Ground  
NC  
10 +5 V  
11 NC  
12 NC  
13 NC  
14 NC  
Specifications and Ordering Information  
QDFT Low-Bandwidth pinFET Receiver, page 39  
QDFT Moderate-Bandwidth pinFET Receiver, page 40  
QDFT High-Bandwidth pinFET Receiver, page 41  
38  
Corning Lasertron 2000 Product Guide  
2000  
QDFT  
Low-Bandwidth  
pinFET Receiver  
I
Telecom access and junction applications  
Description  
See page 38 for a general description.  
Specifications Contact Corning Lasertron regarding special requirements.  
005 010 015 020 025-001 025-004 040 045  
QDFT -  
Absolute Maximum Ratings  
Fiber-coupled power (mW)  
Reverse photocurrent (mA)  
Reverse bias voltage (V)  
5
5
-15  
2
260  
10  
10  
30  
5
4
-53  
-55  
900  
10  
9
15  
9
20  
9
25  
25  
-46.5  
-49  
250  
-22.4  
25  
25  
-48.5  
-50.5  
360  
40  
25  
-45  
-48  
120 120  
45  
25  
-45  
Min. pinFET bandwidth (MHz)  
Min. noise filter bandwidth (MHz)  
Sensitivity (dBm, Avg.): Max.  
Typ.  
Typ. transimpedance (K Ohm)  
Max. input (dBm, Avg.) Min.  
-50.5 -50.5 -49  
-53  
500  
Forward current (mA)  
-53 -51.5  
500 250  
-48  
Lead soldering temperature (oC)  
Lead soldering duration (sec)  
Fiber yield strength (N, min)  
Fiber bend radius (mm, min)  
-27.9 -25.4 -25.4 -22.4  
-25.5  
-19.2 -19.2  
Min  
Typ  
Max  
Common Specifications (all models listed above)  
Sensitivity change 25 to 65oC (dB)  
1.5  
Gain flatness 10 to 50% of nominal bandwidth (measured into a 1K Ohm load, dB)  
Detector dark current (nA)  
Output voltage at Pmax (V, p-p)  
+1  
10  
1
2.3  
7
0.85  
0.1  
90  
Measured output impedance (Ohms)  
Responsivity 1300 nm and -5 V bias (A/W)  
Responsivity change (dB, 25 to 65oC)  
Power consumption: +5 V supply (mW)  
-5 V supply (mW)  
0.75  
0.5  
40  
Operating temperature range (oC)  
-20  
-40  
70  
85  
Storage temperature range (oC)  
Ordering Information  
Suffix  
Base Model  
QDFT-005  
QDFT-010  
QDFT-015  
QDFT-020  
QDFT-025  
QDFT-025  
QDFT-040  
QDFT-045  
No Connector  
-001  
FC/PC  
-050  
-050  
-050  
-050  
-050  
-053  
-050  
-050  
ST  
-052  
-052  
-052  
-052  
-052  
-055  
-052  
-052  
-001  
-001  
-001  
-001  
-004  
-001  
-001  
Product Information/Receivers and Detectors  
39  
2000  
QDFT  
Moderate-Bandwidth  
pinFET Receiver  
I
Telecom trunk, access and junction applications  
Description  
See page 38 for a general description.  
Specifications Contact Corning Lasertron regarding special requirements.  
QDFT -  
050 060 065 070 090 100  
Absolute Maximum Ratings  
Fiber-coupled power (mW)  
Reverse photocurrent (mA)  
Reverse bias voltage (V)  
5
5
-15  
50  
34  
-42.5  
-46.8  
72  
60  
50  
65  
50  
70  
50  
-42  
90 100  
Min. pinFET bandwidth (MHz)  
Min. noise filter bandwidth (MHz)  
Sensitivity (dBm, Avg.): Max.  
Typ.  
Typ. transimpedance (K Ohms)  
Max. input (dBm, Avg.) Min.  
90  
-41  
-43  
42  
90  
-41  
-43  
42  
-42 -43.5  
-45  
72  
Forward current (mA)  
2
-46 -44.5  
90 54  
Lead soldering temperature (oC)  
Lead soldering duration (sec)  
Fiber yield strength (N, min)  
Fiber bend radius (mm, min)  
260  
10  
10  
30  
-17  
-17  
-19 -15.8 -14.6 -14.6  
Min Typ Max  
Common Specifications (all models listed above)  
Sensitivity change 25 to 65oC (dB)  
1.5  
Gain flatness 10 to 50% of nominal bandwidth (measured into a 1K Ohm load, dB)  
Detector dark current (nA)  
Output voltage at Pmax (V)  
+1  
10  
1
2.3  
7
0.85  
0.1  
90  
Measured output impedance (Ohms)  
Responsivity 1300 nm and -5 V bias (A/W)  
Responsivity change (dB, 25 to 65oC)  
Power consumption: +5 V supply (mW)  
-5 V supply (mW)  
0.75  
0.5  
40  
Operating temperature range (oC)  
-20  
-40  
70  
85  
Storage temperature range (oC)  
Ordering Information  
Suffix  
Base Model  
QDFT-050  
QDFT-060  
QDFT-065  
QDFT-070  
QDFT-090  
QDFT-100  
No Connector  
-001  
FC/PC  
-050  
-050  
-050  
-050  
-050  
-050  
ST  
-052  
-052  
-052  
-052  
-052  
-052  
-001  
-001  
-001  
-001  
-001  
40  
Corning Lasertron 2000 Product Guide  
2000  
QDFT  
High-Bandwidth  
pinFET Receiver  
I
Telecom access and junction applications  
Description  
See page 38 for a general description.  
Specifications Contact Corning Lasertron regarding special requirements.  
QDFT -  
125 170 200 250 275 300  
Absolute Maximum Ratings  
Fiber-coupled power (mW)  
Reverse photocurrent (mA)  
Reverse bias voltage (V)  
5
5
-15  
Min. pinFET bandwidth (MHz)  
Min. noise filter bandwidth (MHz)  
Sensitivity (dBm, Avg.): Max.  
Typ.  
Typ. transimpedance (K Ohms)  
Max. input (dBm, Avg.)  
125  
100  
170  
150  
200  
150  
250  
200  
275  
200  
300  
200  
-38.5 -36.5 -36.5 -34.5 -34.5 -34.5  
-40.5 -38.5 -38.5 -36.5 -36.5 -36.5  
Forward current (mA)  
2
Lead soldering temperature (oC)  
Lead soldering duration (sec)  
Fiber yield strength (N, min)  
Fiber bend radius (mm, min)  
260  
10  
10  
30  
20  
11  
11  
6.5  
6.5  
6.5  
-11.5  
-12  
-12  
-7.2  
-7.2  
-7.2  
Min Typ Max  
Common Specifications  
Sensitivity change 25 to 65oC (dB)  
1.5  
Gain flatness 10 to 50% of nominal bandwidth (measured into a 1K Ohm load, dB)  
Detector dark current (nA)  
Output voltage at Pmax (V, p-p)  
+1  
10  
1
2.3  
7
0.85  
0.1  
135  
80  
Measured output impedance (Ohms)  
Responsivity 1300 nm and -5 V bias (A/W)  
Responsivity change (dB, 25 to 65oC)  
Power consumption: +5 V supply (mW)  
-5 V supply (mW)  
0.75  
0.5  
Operating temperature range (oC)  
-20  
-40  
70  
85  
Storage temperature range (oC)  
Ordering Information  
Suffix  
Base Model  
QDFT-125  
QDFT-170  
QDFT-200  
QDFT-250  
QDFT-275  
QDFT-300  
No Connector  
-301  
FC/PC  
-350  
-350  
-350  
-350  
-350  
-350  
ST  
-352  
-352  
-352  
-352  
-352  
-352  
-301  
-301  
-301  
-301  
-301  
Product Information/Receivers and Detectors  
41  
2000  

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