LMH6525SPNOPB NSC [National Semiconductor], LMH6525SPNOPB Datasheet
LMH6525SPNOPB
Related parts for LMH6525SPNOPB
LMH6525SPNOPB Summary of contents
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LMH6525/LMH6526 Four–Channel Laser Diode Driver with Dual Output General Description The LMH ™ 6525/6526 is a laser diode driver for use in combination DVD/CD recordable and rewritable systems. The part contains two high-current outputs for reading and writing the DVD ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance Human Body Model (Note 2) Machine Model (Note 3) + − Supply Voltages V – V Differential ...
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DC Electrical Characteristics Unless otherwise specified, all limits guaranteed for T Symbol Parameter V TTL High Voltage THI V TTL High Voltage THI V Enable High Voltage EHI I Supply Current, Power Down Spd I Supply Current, Read Mode, ...
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AC ELECTRICAL CHARACTERISTICS Unless otherwise specified, all limits guaranteed for T apply at the temperature extremes. Symbol Parameter T Disable Time Oscillator DO T Enable Time Oscillator EO T Disable Time Oscillator DO T Enable Time Oscillator EO Note ...
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Connection Diagrams 28-Pin LLP (LMH6525) Top View Pin Description Pin # Description 1. Laser driver output channel A 2. LVDS Oscillator Enable pin 3. LVDS Oscillator Enable pin B (only LMH6525) 4. Read Channel Enable pin 5. Chip Enable pin ...
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Pin Description (Continued) Pin # Description 27. Laser driver output channel B 28. Ground Connection B Truth Tables IOUT Control ENABLE ENR Oscillator Control ENABLE ENOSC 0 X ...
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Waveforms (Continued) Enable Timing Read Timing Write Timing Oscillator Timing 7 20110111 20110112 20110113 20110114 www.national.com ...
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Detailed Block Diagram www.national.com 20110115 8 ...
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Application Schematic 9 20110116 www.national.com ...
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Typical Performance Characteristics Oscillator Amplitude vs. R Oscillator Frequency vs. R Noise vs. Frequency www.national.com + ± 25˚ 5V Oscillator Amplitude vs 20110103 F 20110104 Headroom & Output Current vs. Total Input ...
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Application Section CIRCUIT DESCRIPTION General & Spec The LMH6525/6526 is a 4-channel-input, dual-output laser driver. The dual outputs are meant to drive two different laser diodes, one for CD reading and writing and one for DVD reading and writing. The ...
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Application Section (Continued) voltage of the part at the power pin is 5.25V and this means the supply line loss is 0.25V 5.5V supply voltage the part can drive laser diodes with a forward voltage in access of ...
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Application Hints (Continued) thickness ( (see Figure 2). When Checked under a microscope: the thickness of the wires is 0.3 mm. The pitch is 0.5 mm, while the ;r must be 1 for air. The impedance of two ...
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Application Hints (Continued) FIGURE 4. Decoupling Capacitors OSCILLATOR RESISTORS The resistors and/or potentiometers used to set oscillator frequency or amplitude should be as close to the part as possible. If the grounds are split when using a single-sided flex circuit, ...
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Physical Dimensions inches (millimeters) unless otherwise noted National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and ...