 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| QDFT Series High-Sensitivity Transimpedance pinFET Receiver I I I I Fixed transimpedance circuit configuration 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 provides excellent sensitivity and superior dynamic range. The high sensitivity results from use of an advanced GaInAs detector element having <10 nA leakage and a responsivity of >0.8 A/W at 1300 and 1550 nm. Sensitivities range from -53 dBm at 18 Mb/s, to -43 dBm at 140 Mb/s. Optical dynamic 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. 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 then converted to a voltage with the transimpedance resistor (Zt) and a gain block amplifier. The resulting signal voltage (Vs) is simply derived from the quantities Is * Zt. TRANSIMPEDANCE DESIGN CIRCUITRY Pin Connections 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Detector Bias (-5 V) NC Case Ground -5 V Case Ground NC Output Case Ground NC +5 V NC NC NC NC (Bias and interface circuit) Specifications and Ordering Information 38 2000 QDFT Low-Bandwidth pinFET Receiver, page 39 QDFT Moderate-Bandwidth pinFET Receiver, page 40 QDFT High-Bandwidth pinFET Receiver, page 41 Corning Lasertron 2000 Product Guide QDFT Low-Bandwidth pinFET Receiver I Telecom access and junction applications Description See page 38 for a general description. Specifications QDFT - Contact Corning Lasertron regarding special requirements. 005 010 10 9 -50.5 -53 500 -25.4 015 020 15 20 9 9 -50.5 -49 -53 -51.5 500 250 -25.4 -22.4 025-001 025-004 25 25 -46.5 -49 250 -22.4 25 25 -48.5 -50.5 360 -25.5 Min 040 045 45 40 25 25 -45 -45 -48 -48 120 120 -19.2 -19.2 Typ Max 1.5 1 2.3 7 0.85 0.1 90 40 +1 10 Absolute Maximum Ratings Fiber-coupled power (mW) Reverse photocurrent (mA) Reverse bias voltage (V) Forward current (mA) Lead soldering temperature (oC) Lead soldering duration (sec) Fiber yield strength (N, min) Fiber bend radius (mm, min) 5 5 -15 2 260 10 10 30 5 Min. pinFET bandwidth (MHz) Min. noise filter bandwidth (MHz) 4 -53 Sensitivity (dBm, Avg.): Max. Typ. -55 900 Typ. transimpedance (K Ohm) Max. input (dBm, Avg.) Min. -27.9 Common Specifications (all models listed above) Sensitivity change 25 to 65oC (dB) 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) Measured output impedance (Ohms) Responsivity 1300 nm and -5 V bias (A/W) 0.75 Responsivity change (dB, 25 to 65oC) Power consumption: +5 V supply (mW) -5 V supply (mW) Operating temperature range (oC) -20 Storage temperature range (oC) -40 0.5 70 85 Ordering Information Base Model QDFT-005 QDFT-010 QDFT-015 QDFT-020 QDFT-025 QDFT-025 QDFT-040 QDFT-045 No Connector -001 -001 -001 -001 -001 -004 -001 -001 Suffix FC/PC -050 -050 -050 -050 -050 -053 -050 -050 ST -052 -052 -052 -052 -052 -055 -052 -052 Product Information/Receivers 2000 and Detectors 39 QDFT Moderate-Bandwidth pinFET Receiver I Telecom trunk, access and junction applications Description See page 38 for a general description. Specifications Absolute Maximum Ratings Fiber-coupled power (mW) Reverse photocurrent (mA) Reverse bias voltage (V) Forward current (mA) Lead soldering temperature (oC) Lead soldering duration (sec) Fiber yield strength (N, min) Fiber bend radius (mm, min) 5 5 -15 2 260 10 10 30 Contact Corning Lasertron regarding special requirements. QDFT Min. pinFET bandwidth (MHz) Min. noise filter bandwidth (MHz) Sensitivity (dBm, Avg.): Max. Typ. Typ. transimpedance (K Ohms) Max. input (dBm, Avg.) Min. 050 50 34 -42.5 -46.8 72 -17 060 065 070 090 100 60 50 -42 -45 72 -17 65 50 -43.5 -46 90 -19 70 50 -42 -44.5 54 -15.8 90 100 90 90 -41 -41 -43 -43 42 42 -14.6 -14.6 Min Common Specifications (all models listed above) Sensitivity change 25 to 65oC (dB) Gain flatness 10 to 50% of nominal bandwidth (measured into a 1K Ohm load, dB) Detector dark current (nA) Output voltage at Pmax (V) Measured output impedance (Ohms) Responsivity 1300 nm and -5 V bias (A/W) 0.75 Responsivity change (dB, 25 to 65oC) Power consumption: +5 V supply (mW) -5 V supply (mW) Operating temperature range (oC) -20 Storage temperature range (oC) -40 Typ 1.5 1 2.3 7 0.85 0.1 90 40 Max +1 10 0.5 70 85 Ordering Information Base Model QDFT-050 QDFT-060 QDFT-065 QDFT-070 QDFT-090 QDFT-100 No Connector -001 -001 -001 -001 -001 -001 Suffix FC/PC -050 -050 -050 -050 -050 -050 ST -052 -052 -052 -052 -052 -052 40 2000 Corning Lasertron 2000 Product Guide QDFT High-Bandwidth pinFET Receiver I Telecom access and junction applications Description See page 38 for a general description. Specifications QDFT - Contact Corning Lasertron regarding special requirements. 125 125 100 -38.5 -40.5 20 -11.5 170 200 250 275 170 200 150 150 -36.5 -36.5 -38.5 -38.5 11 11 -12 -12 250 200 -34.5 -36.5 6.5 -7.2 275 200 -34.5 -36.5 6.5 -7.2 300 300 200 -34.5 -36.5 6.5 -7.2 Absolute Maximum Ratings Fiber-coupled power (mW) Reverse photocurrent (mA) Reverse bias voltage (V) Forward current (mA) Lead soldering temperature (oC) Lead soldering duration (sec) Fiber yield strength (N, min) Fiber bend radius (mm, min) 5 5 -15 2 260 10 10 30 Min. pinFET bandwidth (MHz) Min. noise filter bandwidth (MHz) Sensitivity (dBm, Avg.): Max. Typ. Typ. transimpedance (K Ohms) Max. input (dBm, Avg.) Min Common Specifications Sensitivity change 25 to 65oC (dB) 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) Measured output impedance (Ohms) Responsivity 1300 nm and -5 V bias (A/W) 0.75 Responsivity change (dB, 25 to 65oC) Power consumption: +5 V supply (mW) -5 V supply (mW) Operating temperature range (oC) -20 Storage temperature range (oC) -40 Typ 1.5 1 2.3 7 0.85 0.1 135 80 Max +1 10 0.5 70 85 Ordering Information Base Model QDFT-125 QDFT-170 QDFT-200 QDFT-250 QDFT-275 QDFT-300 No Connector -301 -301 -301 -301 -301 -301 Suffix FC/PC -350 -350 -350 -350 -350 -350 ST -352 -352 -352 -352 -352 -352 Product Information/Receivers and Detectors 2000 41 |
Price & Availability of QDFT-300-301
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |