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SY88982L Datasheet(PDF) 3 Page - Micrel Semiconductor |
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SY88982L Datasheet(HTML) 3 Page - Micrel Semiconductor |
3 / 10 page Micrel, Inc. SY88982L April 2005 3 M9999-0414505 hbwhelp@micrel.com or (408) 955-1690 Pin Description Pin Name Pin Number Pin Function 1, 4, 7, 8, 13 GND Ground. Ground and exposed pad must be connected to the plane of the most negative potential. 2DIN+ Non-inverting data input. Internally terminated with 50 to a reference voltage. 3DIN– Inverting data input. Internally terminated with 50 to a reference voltage. 5, 6 VCC Supply Voltage. Bypass with a 0.1 F//0.01 F low ESR capacitor as close to VCC pin as possible. 9, 10 MOD– Inverted modulation current output. Outputs modulation current when input data is negative. 11, 12 MOD+ Non-inverted modulation current output. Outputs modulation current when input data is positive. 14 VREF Reference Voltage. Install a 0.1 F capacitor between VREF and VCC. 15 IM_SET Modulation current setting and control. The voltage applied to this pin will set the modulation current. To be connected to the MIC3000/1 pin 24 (VMOD+). Input impedance 25K . 16 /EN A low level signal on this pin will enable the output stage of the driver. Internally pulled down with 75K . Truth Table DIN+ DIN- /EN MOD+ (1) MOD- Laser Output (2) LH L H L L HL L L H H XX H H L L Notes: 1. IMOD = 0 when MOD+ = H. 2. Assuming that the laser is tied to MOD+. |
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