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HFBR-5527 Datasheet(PDF) 3 Page - Agilent(Hewlett-Packard) |
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HFBR-5527 Datasheet(HTML) 3 Page - Agilent(Hewlett-Packard) |
3 / 12 page 167 Hard Clad Silica Fiber (200 µm HCS) Transmitter Application Circuit: Performance of the transmitter in the recommended application circuit (Figure 1) for HCS; 1-125 MBd, 25 °C. Parameter Symbol Typical Unit Condition Note Average Optical Power 200 µm HCS Pavg -14.6 dBm 50% Duty Note 1, Fig. 3 Cycle Average Modulated Power 200 µm HCS Pmod -16.2 dBm Note 2, Fig. 3 Optical Rise Time (10% to 90%) tr 3.1 ns 5 MHz Optical Fall Time (90% to 10%) tf 3.4 ns 5 MHz High Level LED Current (On) IF,H 60 mA Note 3 Low Level LED Current (Off) IF,L 6 mA Note 3 Optical Overshoot - 200 µm HCS 30 % Transmitter Application Circuit ICC 130 mA Figure 1 Current Consumption - 200 µm HCS Notes: 1. Average optical power is measured with an average power meter at 50% duty cycle, after 1 meter of fiber. 2. To allow the LED to switch at high speeds, the recommended drive circuit modulates LED light output between two non-zero power levels. The modulated (useful) power is the difference between the high and low level of light output power (transmitted) or input power (received), which can be measured with an average power meter as a function of duty cycle (see Figure 3). Average Modulated Power is defined as one half the slope of the average power versus duty cycle: [Pavg @ 80% duty cycle - Pavg @ 20% duty cycle] Average Modulated Power = ––—————————————————————— (2) [0.80 - 0.20] 3. High and low level LED currents refer to the current through the LED. The low level LED “off” current, sometimes referred to as “hold-on” current, is prebias supplied to the LED during the off state to facilitate fast switching speeds. Plastic Optical Fiber (1 mm POF) Transmitter Application Circuit: Performance of the transmitter in the recommended application circuit (Figure 1) for POF; 1-125 MBd, 25 °C. Parameter Symbol Typical Unit Condition Note Average Optical Power 1 mm POF Pavg -9.7 dBm 50% Duty Note 1, Fig. 3 Cycle Average Modulated Power 1 mm POF Pmod -11.3 dBm Note 2, Fig. 3 Optical Rise Time (10% to 90%) tr 2.1 ns 5 MHz Optical Fall Time (90% to 10%) tf 2.8 ns 5 MHz High Level LED Current (On) IF,H 30 mA Note 3 Low Level LED Current (Off) IF,L 3 mA Note 3 Optical Overshoot - 1 mm POF 45 % Transmitter Application Circuit ICC 115 mA Figure 1 Current Consumption - 1 mm POF |
Similar Part No. - HFBR-5527 |
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Similar Description - HFBR-5527 |
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