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SRX848XR2H000P6 Datasheet(PDF) 3 Page - OPLINK Communications Inc. |
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SRX848XR2H000P6 Datasheet(HTML) 3 Page - OPLINK Communications Inc. |
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3 / 4 page  Oplink Communications, Inc. Application Notes SHORT & INTERMEDIATE REACH LONG REACH PD External Monitor Resistor (3 Kohm recommended) PD Current Monitor PM+ VCC APD 1 K 10 K 10 K APD Bias Supply PM+ PM- 8 4 - X R S 8 4 - X R S 50 ohm line 50 ohm line SRX-48 9 4,5,6,7,11,12,13 14,15,16,19,21 8 DATA+ 10 1 µH coil or ferrite bead (<0.2 ohm series resistance) DATA- SIGNAL DETECT 17,18 20 3 +10 0.01 for SR & IR only +5V PM- to 50 ohm load to 50 ohm load + 10 0.01 0.01 +5V + 100 + 10 22 for LR only The AC coupling capacitor is typically 0.022 µF for 2.48 Gb/s. If operation at lower data rates is required, a parrallel combination of 0.022 µF & 0.22 µF (or larger) is recommended Interface Circuit SRX48 R5.2008.04.30 3 The receiver converts the incident optical power to a photocurrent via a high performance P-I-N photodiode (Short and Intermediate Reach version) or an avalanche photodiode (Long Reach version). For the Short and Intermediate Reach version, the photocurrent can be monitored via the voltage drop across an external resistor connected between PM+ and V CC. For the Long Reach version, the photocurrent can be monitored via the differential voltage across the two PM+ and PM- output pins. It is important to note that the Common Mode voltage of these two monitor outputs (i.e. DC voltages at PM+ and PM-) is high (- 60 V typical). The APD Bias Voltage is temperature compensated to ensure stable operation over the entire operating temperature range. The DATA outputs are differential signals designed to be AC-coupled into 50 ohm load. Transmission lines are recommended for best performance. The Signal Detect circuit monitors the level of the incoming optical signal and generates a TTL logic LOW signal at the SIGNAL DETECT output when insufficient photocurrent is produced. No termination resistor is required for the SIGNAL DETECT output. |
Similar Part No. - SRX848XR2H000P6 |
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Similar Description - SRX848XR2H000P6 |
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