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LMX2486 Datasheet(PDF) 30 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LMX2486
Description  1.0 GHz - 4.5 GHz High Performance Delta-Sigma Low Power Dual PLLatinum TM Frequency Synthesizers with 3.0 GHz Integer PLL
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LMX2486 Datasheet(HTML) 30 Page - National Semiconductor (TI)

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Programming Description (Continued)
This corresponds to the following bit settings.
Register
Bit Location
Bit Name
Bit Description
Bit Value
Bit State
R4
R4[23]
ATPU
Autopowerup
0
Disabled
R4[17:16]
DITH
Dithering
2
Strong
R4[15:14]
FM
Modulator Order
3
3rd Order
R4[12]
OSC_2X
Oscillator Doubler
0
Disabled
R4[11]
OSC_OUT
OSCout Pin Enable
0
Disabled
R4[10]
IF_CPP
IF Charge Pump Polarity
1
Positive
R4[9]
RF_CPP
RF Charge Pump Polarity
1
Positive
R4[8]
IF_P
IF PLL Prescaler
1
16/17
R4[7:4]
MUX
Ftest/LD Output
0
Disabled
R5
R5[23:14]
RF_FD[21:12]
Extended Fractional Denominator
0
Disabled
R5[13:4]
RF_FN[21:12]
Extended Fractional Numerator
0
Disabled
R6
R6[23:22]
CSR
Cycle Slip Reduction
0
Disabled
R6[21:18]
RF_CPF
Fastlock Charge Pump Current
0
Disabled
R6[17:4]
RF_TOC
RF Timeout Counter
0
Disabled
R7
R7[13]
DIV4
Lock Detect Adjustment
0
Disabled (Fcomp
≤ 20 MHz)
R7[7]
IF_RST
IF PLL Counter Reset
0
Disabled
R7[6]
RF_RST
RF PLL Counter Reset
0
Disabled
R7[5]
IF_CPT
IF PLL TRI-STATE
0
Disabled
R7[4]
RF_CPT
RF PLL TRI-STATE
0
Disabled
www.national.com
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