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CX02068G-09-T データシート(PDF) 9 Page - M/A-COM Technology Solutions, Inc. |
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CX02068G-09-T データシート(HTML) 9 Page - M/A-COM Technology Solutions, Inc. |
9 / 18 page Functional Description 02068-DSH-001-C Mindspeed Technologies ® 7 Mindspeed Proprietary and Confidential 3.2 Features • Rise and fall times <180 ps • Operates with +3.3 volt supply • DC or AC-coupled modulation drive • Independently programmable laser bias (to 100 mA) and modulation currents (to 85 mA) • Automatic laser power control, with programmable temperature compensation and ‘Slow-Start’ • Bias and modulation current monitors • Failure monitor • Available in BCC+24 , TQFP32 and DIE packages • Available in RoHS compliant packages 3.3 Modulator The modulator output stage is designed to drive up to 85 mA in either AC-coupled or DC-coupled mode. DC- coupled performance depends on the laser used. The CX02068 modulation output is optimized for driving a 25 Ω dynamic load; the minimum required voltage at OUT+ and OUT- is 0.6 V. To interface with the laser diode, a matching resistor (RD) is required for impedance matching. An RC shunt network is necessary to compensate for the laser diode parasitic inductance, thereby improving the optical eye. Typical values are RSHUNT = 51Ω, CSHUNT = 3.3 pF Any capacitive loading at the cathode of a laser diode will degrade the optical output performance. An inductor is used to isolate the BIAS pin from the laser cathode. Figure 3-2. Typical modulation current vs RMODSET(3.3V) 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1 0 5000 10000 15000 20000 25000 30000 35000 R MODSET (Ω ) |
同様の部品番号 - CX02068G-09-T |
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同様の説明 - CX02068G-09-T |
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