LMX2331LSLBX National Semiconductor, LMX2331LSLBX Datasheet - Page 14

• Manufacturer Part Number: LMX2331LSLBX
• Description: PLL Frequency Synthesizer Dual 45MHz to 2000MHz 24-Pin LAM CSP T/R
• Manufacturer: National Semiconductor
• Type: PLL Frequency Synthesizerr

Specifications of LMX2331LSLBX

• Package: 24LAM CSP
• Number Of Elements Per Chip: 2
• Operating Temperature: -40 to 85 °C
• Operating Supply Voltage: 3 V

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PROGRAMMABLE REFERENCE DIVIDERS (IF AND RF R COUNTERS)
If the Control Bits are 00 or 01 (00 for IF and 01 for RF) data is transferred from the 22-bit shift register into a latch which sets the
15-bit R Counter. Serial data format is shown below.
15-BIT PROGRAMMABLE REFERENCE DIVIDER RATIO (R COUNTER)
Notes:
Divide ratios less than 3 are prohibited.
Divide ratio: 3 to 32767
R1 to R15: These bits select the divide ratio of the programmable reference divider.
Data is shifted in MSB first.
Divide
32767
Ratio
3
4
•
12806 Version 9 Revision 2
15 14 13 12 11 10 9
R
0
0
1
•
R
0
0
1
•
R
0
0
1
•
R
0
0
1
•
R
0
0
1
•
R
0
0
1
•
Print Date/Time: 2011/07/11 15:54:42
14
R
0
0
1
•
R
8
0
0
1
•
R
7
0
0
1
•
R
6
0
0
1
•
R
5
0
0
1
•
R
4
0
0
1
•
R
3
0
1
1
•
R
2
1
0
1
•
R
1
1
0
1
1280607
•
1280606