LMX1600EVAL National Semiconductor, LMX1600EVAL Datasheet - Page 15

• Manufacturer Part Number: LMX1600EVAL
• Manufacturer: National Semiconductor

Specifications of LMX1600EVAL

• Lead Free Status / Rohs Status: Not Compliant

2.0 Programming Description
2.7 TYPICAL APPLICATION EXAMPLE
OPERATIONAL NOTES:
*
** R
*** 50Ω termination is often used on test boards to allow use of external reference oscillator. For most typical products, a CMOS
**** Adding RC filter to the V
be reduced by careful board layout.
— Proper use of grounds and bypass capacitors is essential to achieve a high level of performance. Crosstalk between pins can
— This is a static sensitive device. It should be handled only at static free work stations.
VCO is assumed AC coupled.
200Ω depending on the VCO power level. The fin RF impedance ranges from 40Ω to 100Ω. The fin IF impedances are higher.
clock is used and no terminating resistor is required. OSC
the input circuit provides its own bias. (See Figure below)
IN
increases impedance so that VCO output power is provided to the load rather than the PLL. Typical values are 10Ω to
CC
line is recommended to reduce loop-to-loop noise coupling.
(Continued)
IN
may be AC or DC coupled. AC coupling is recommended because
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