CLC007AJE National Semiconductor, CLC007AJE Datasheet - Page 7

• Manufacturer Part Number: CLC007AJE
• Manufacturer: National Semiconductor

Specifications of CLC007AJE

• Number Of Transmitters: 1
• Power Supply Requirement: Single
• Package Type: SOIC N
• Mounting: Surface Mount
• Pin Count: 8
• Supply Current: 47mA
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Lead Free Status / Rohs Status: Not Compliant

OUTPUT RISE AND FALL TIMES
Output load capacitance can significantly affect output rise
and fall times. The effect of load capacitance, stray or other-
wise, may be reduced by placing the output back-match
PCB Layout Recommendations
Printed circuit board layout affects the performance of the
CLC007. The following guidelines will aid in achieving satis-
factory device performance.
•
•
•
Use a ground plane or power/ground plane sandwich
design for optimum performance.
Bypass device power with a 0.01 µF monolithic ceramic
capacitor in parallel with a 6.8 µF tantalum electrolytic
capacitor located no more than 0.1” (2.5 mm) from the
device power pins.
Provide short, symmetrical ground return paths for:
FIGURE 7. Differential Input DC Coupled Output
FIGURE 8. Rise Time vs C
7
resistor close to the output pin and by minimizing all intercon-
necting trace lengths. Figure 8 shows the effect on risetime
of parallel load capacitance across a 150Ω load.
•
— inputs,
— supply bypass capacitors and
— the output load.
Provide short, grounded guard traces located
— under the centerline of the package,
— 0.1” (2.5 mm) from the package pins
— on both top and bottom of the board with connecting
vias.
L
10008511
10008510
www.national.com