National Semiconductor LMX2531LQ1700E Operating Instructions Manual Download

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LMX2531LQ1700E

Evaluation Board Operating Instructions

National Semiconductor Corporation

Wireless Communications, RF Products Group

2900 Semiconductor Dr.

M/S A2-600

Santa Clara, CA, 95052-8090

LMX2531LQ1700EFPEB Rev 1.20.2006

Summary of Contents for LMX2531LQ1700E

Page 1: ...00E Evaluation Board Operating Instructions National Semiconductor Corporation Wireless Communications RF Products Group 2900 Semiconductor Dr M S A2 600 Santa Clara CA 95052 8090 LMX2531LQ1700EFPEB Rev 1 20 2006 ...

Page 2: ...ASE NOISE WITH NARROW LOOP FILTER INTERNAL DIVIDE BY 2 DISABLED 5 PHASE NOISE WITH NARROW LOOP FILTER INTERNAL DIVIDE BY 2 ENABLED 6 SPURS INTERNAL DIVIDE BY 2 DISABLED 7 SPURS INTERNAL DIVIDE BY 2 ENABLED 8 CODELOADER SETTINGS 9 SCHEMATIC 11 BILL OF MATERIALS 12 TOP LAYER 13 MID LAYER 1 GROUND PLANE 14 MID LAYER 2 POWER 15 BOTTOM LAYER SIGNAL 16 TOP BUILD DIAGRAM 17 2 ...

Page 4: ...1 7 0 0 E E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Phase Noise Output Frequency 1716 MHz Internal Divide by 2 Disabled DIV2 0 Output Frequency 858 MHz Internal Divide by 2 Enabled DIV2 1 4 ...

Page 7: ...d Spur at 200 kHz offset at a worst case frequency of 1630 2 MHz is 85 6 dBc Worst case channels occur at exactly one channel spacing above or below a multiple of the crystal frequency Spur at 200 kHz offset at a worst case frequency of 1700 2 MHz is 85 6 dBc Spur at 200 kHz offset at a worst case frequency of 1760 2 MHz is 87 3 dBc 7 ...

Page 9: ...he default reference oscillator used for these instructions was 10 MHz but there is a mode for a 61 44 MHz oscillator as well If the bits become scrambled their original state may be recalled by choosing the appropriate mode Note that if the internal divide by 2 is enabled the VCO frequency still reflects the VCO frequency before the divide by 2 9 ...

Page 10: ... in the correct way R5 INIT1 and R5 INIT 2 are just the R5 register being used to properly initialize the part So a single CNT L should load the part The port setup tells CodeLoader what information goes where If this is wrong the part will not program Although LPT1 is usually correct CodeLoader does not autodetect the correct port On some laptops it may be LPT3 10 ...

Page 13: ...L M X 2 5 3 1 L Q 1 7 0 0 E E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Top Layer 13 ...

Page 14: ...L M X 2 5 3 1 L Q 1 7 0 0 E E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Mid Layer 1 Ground Plane 15 Mils Down FR4 14 ...

Page 15: ...L M X 2 5 3 1 L Q 1 7 0 0 E E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Mid Layer 2 Power 15 ...

Page 16: ...L M X 2 5 3 1 L Q 1 7 0 0 E E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Bottom Layer Signal Note Total Board Thickness 61 mils 16 ...

Page 17: ...L M X 2 5 3 1 L Q 1 7 0 0 E E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S 17 Top Build Diagram ...

Page 19: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments LMX25311700EVAL ...