QDFB-100-001 [ETC]
Optoelectronic ; 光电\n
| 型号： | QDFB-100-001 |
| 厂家： | 
ETC |
| 描述： | Optoelectronic
|
| 文件： | 总2页 (文件大小：591K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QDFB
Wide Dynamic Range
pinFET Receiver
I
I
I
I
I
Telecom access and junction applications
Transimpedance amplifier with AGC
High sensitivity
Wide dynamic range 32 dB
1300 and 1550 nm operation
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Description
The QDFB is a fiber-optic transimpedance receiver used in long-wavelength applications.
Excellent sensitivity and a wide dynamic range are achieved by the use of an automatic
gaincontrolcircuit(AGC). TheQDFBfeaturesabufferedoutputstagewhichincreasesthe
drive capabilities. Packaged in the industry-standard, low-profile 14-pin DIL package, the
hermetic package is pigtailed with multimode fiber. Connector selection is optional.
Applications
TheQDFBpinFETisdesignedtooperateindigitalfiber-opticsystemsrunningatdatarates
up to 155 Mb/s. The pinFET reduces system engineering time by eliminating performance
matching between the detector, amplifier, and an automatic gain control loop while
maintaining stability.
Power Supply Internal 0.01 µf power supply decoupling capacitors are used to improve
performance in noisy conditions. Additionally, external bypass capacitors with short leads
should be used at the supply pins. Capacitor values depend on system conditions. The
QDFB requires a single +5 and two -5 volt supplies, one for the detector and the other for
the amplifier. Pin 1 is dedicated to the detector and allows the photodiode current to be
monitored.
Output Loading Considerations An output buffer enables the QDFB to drive
capacitive loads. Nevertheless, output loading should still be kept to a minimum; excessive
reactive loads can cause ringing and overshoot. Also, the output is generally AC-coupled
to the next stage to isolate post-amplification circuitry from shifts in pinFET dc output
voltage.
Maximum Overload Power The maximum overload is defined as the input power
needed to cause a 1 volt peak-to-peak output voltage. Operation above this level is possible
because the QDFB does not start clipping until about 2.5 volts peak-to-peak, or at
approximately 0 dBm optical input power.
Sensitivity The sensitivity of every module is determined before shipment. The
sensitivity calculated is the input power needed to maintain better than 10-9 Bit Error Rate.
The calculation is based on an RMS noise measurement under “no light” conditions.
ManufacturingInformation TheQDFBissubjectedtoabatteryofprocessesincluding
active burn-in, temperature cycling, fine and gross leak test, and visual inspections.
All devices are tested before shipment; test results are included with each unit.
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Corning Lasertron 2000 Product Guide
Specifications Contact Corning Lasertron regarding special requirements.
(at 25oC, ±5 V, unless otherwise noted)
QDFB-100
QDFB-005 QDFB-010 QDFB-040
Min Max Min Max Min Max Min Max
Electrical Characteristics
Sensitivity (dBm)*
-54
-52
-52
-50
-45
-43.5
-39
-37.5
Sensitivity over operating temperature (dBm)
-5
5
-5
-5
-5
Maximum overload (dBm)
Peak-to-peak voltage at max overload (Vpp)
Bandwidth at -3 dB (MHz)
1
1
1
2
10
40
100
Gain flatness (dB)
Output impedance (Ohms)
+1
50
+1
50
+1
50
+1
50
Transimpedance (K Ohms)
800
400
85
30
*Noise filter used to test sensitivity for the QDFB-005 is a 4 MHz, 3-pole filter; QDFB-010 is an 8.5 MHz,
3-pole filter; QDFB-040 is a 40 MHz, 3-pole filter; and QDFB-100 is a 110 MHz, 3-pole filter.
Min
Max
Common Specifications (all QDFB models)
Detector responsivity (A/W)
Photodiode dark current (nA)
Wavelength range (nm)
0.75
5
1600
85
1200
-40
-20
4.75
-5.25
Storage temperature (oC)
Operating temperature (oC)
Positive supply voltage (V)
Negative supply voltage (V)
Power consumption (mW)
70
5.25
-4.75
250
Pin Connections
8
9
Case Ground
NC
1
2
3
4
5
6
7
Detector Bias (-5 V)
NC
10 +5 V
11 NC
12 NC
13 NC
14 NC
Case Ground
-5 V
Case Ground
NC
Output
Absolute Maximum Ratings
Fiber-coupled power (mW)
Reverse photocurrent (mA)
Reverse detector bias voltage (V)
Forward current (mA)
5
5
-15
2
Lead soldering temperature (oC)
Lead soldering duration (sec)
Fiber yield strength (N, min)
Fiber bend radius (mm, min)
Positive power supply (V)
260
10
10
30
7
Negative power supply (V)
-7
Ordering Information
Suffix
No Connector
FC/PC
-050
-050
-050
-050
ST
Base Model
QDFB-005
QDFB-010
QDFB-040
QDFB-100
-001
-001
-001
-001
-052
-052
-052
-052
Product Information/Receivers and Detectors
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