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CXB1818Q Datasheet(PDF) 3 Page - Sony Corporation |
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CXB1818Q Datasheet(HTML) 3 Page - Sony Corporation |
3 / 17 page – 3 – CXB1818Q Pin Description Pin No. 1 VCC4 3.3 Positive power supply for APC circuit. 2 VEE4 0 Negative power supply for APC circuit. 6 VEE5 0 Negative power supply for bias circuit. 7 Q 1.3 to 3.3 6mA to 30mA∗1 6mA to 50mA∗2 9 QBX 1.3 to 3.3 6mA to 30mA∗1 6mA to 50mA∗2 Modulation current output. Open collector output. 10 VEE1 0 Negative power supply for driver circuit. 11 VCC1 3.3 Positive power supply for driver circuit. 12 TM 1.5 Chip temperature monitor. 13 DrvMon 0mA to 1.4mA Modulation current (IQ) monitor. IQ is monitored by connecting a resistor (Rmon) to this pin. 14 DrvAdj 0mA to 9mA Modulation current (IQ) setting. 3 BiasAdj 1.5 to 0 Bias current setting. 4 SBias 0mA to 2.5mA Bias current setting or monitor. 5 Bias 0mA to 60mA Bias current output. Open collector output. Symbol Typical pin voltage [V] DC AC Equivalent circuit Description 3 VCC VEE 10pF 260 240 30 8 4 5 VEE Current Source 7 9 13 14 VCC Rmon VEE 22.5 150 ∗1 Ta = –40 to 0°C ∗2 Ta = 0 to +85°C Complementary current output. Q and QBX are not symmetrical output. Use Q output for laser diode. 8 NC — No connected. — 10 12 VEE |
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