LMX2485E National Semiconductor, LMX2485E Datasheet - Page 30
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LMX2485E
Manufacturer Part Number
LMX2485E
Description
High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers
Manufacturer
National Semiconductor
Datasheet
1.LMX2485E.pdf
(37 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LMX2485ESQ/NOPB
Manufacturer:
TI/NSC
Quantity:
230
Company:
Part Number:
LMX2485ESQX/NOPB
Manufacturer:
ST
Quantity:
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Programming Description
This corresponds to the following bit settings.
Register
R4
R5
R6
R7
Bit Location
R4[17:16]
R4[15:14]
R5[23:14]
R6[23:22]
R6[21:18]
R5[13:4]
R6[17:4]
R4[7:4]
R4[23]
R4[12]
R4[11]
R4[10]
R7[13]
R4[9]
R4[8]
R7[7]
R7[6]
R7[5]
R7[4]
RF_FD[21:12]
RF_FN[21:12]
OSC_OUT
Bit Name
OSC_2X
RF_CPP
RF_TOC
RF_CPF
RF_RST
RF_CPT
IF_CPP
IF_RST
IF_CPT
ATPU
DITH
MUX
DIV4
IF_P
CSR
FM
(Continued)
Extended Fractional Denominator
Extended Fractional Numerator
Fastlock Charge Pump Current
RF Charge Pump Polarity
IF Charge Pump Polarity
Lock Detect Adjustment
RF PLL Counter Reset
IF PLL Counter Reset
Cycle Slip Reduction
RF Timeout Counter
OSCout Pin Enable
Oscillator Doubler
Modulation Order
IF PLL Prescaler
RF PLL Tri-State
Bit Description
Ftest/LD Output
IF PLL Tri-State
Autopowerup
Dithering
30
Bit Value
0
0
0
0
0
0
2
3
0
1
1
1
0
0
0
0
0
0
0
Disabled (Fcomp ≤ 20 MHz)
3rd Order
Bit State
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Positive
Positive
Strong
16/17