LMX1600SLB National Semiconductor, LMX1600SLB Datasheet - Page 10

• Manufacturer Part Number: LMX1600SLB
• Description: PLLatinum Low Cost Dual Frequency Synthesizer
• Manufacturer: National Semiconductor

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Note 16: See section 2.5.3 for AUX_R[14] description.
2.0 Programming Description
2.4.1 VCO Characteristics
2.4.2 Phase Comparator and Internal Charge Pump Characteristics
(AUX_PD_POL/MAIN_PD_POL = 1)
Note 15: fr is phase detector input from reference counter. fp is phase detector input from programmable N counter.
2.5 F
AUX_R[17]
3
0
0
0
0
0
1
1
1
1
OUT
Phase difference detection range: - 2 to + 2p .
The minimum width pump up and pump down current pulses occur at the CPo pin when the loop is locked.
/LOCK DETECT PROGRAMMING TRUTH TABLE (FoLD)
AUX_R[16]
2
0
0
0
1
1
0
0
1
1
FoLD
AUX_R[15]
1
0
0
1
0
1
0
1
0
1
AUX_R[14]
0
0
1
X
X
X
X
X
X
x
(Continued)
10
Main Programmable Counter Output
Aux Programmable Counter Output
Main Reference Counter Output
Aux Reference Counter Output
Main “and” Aux Lock Detect
Fo/LD OUTPUT STATE
Main Lock Detect
DS100129-14
Aux Lock Detect
“0”
“1”
DS100129-15