LMX2541SQ2060E/NOPB National Semiconductor, LMX2541SQ2060E/NOPB Datasheet - Page 41

• Manufacturer Part Number: LMX2541SQ2060E/NOPB
• Description: IC PLL FREQ SYNTH W/VCO 36LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Clock/Frequency Synthesizer (RF)r

Specifications of LMX2541SQ2060E/NOPB

• Pll: Yes
• Input: Clock
• Output: Clock
• Number Of Circuits: 1
• Ratio - Input:output: 2:2
• Differential - Input:output: No/No
• Frequency - Max: 2.24GHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3.15 V ~ 3.45 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-LLP
• Frequency-max: 2.24GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LMX2541SQ2060E

FL_R3_LF[2:0] -- Value for Internal Loop Filter Resistor R3 During Fastlock
FL_R4_LF[2:0] -- Value for Internal Loop Filter Resistor R4 During Fastlock
FL_CPG[4:0] -- Charge Pump Current for Fastlock
When FastLock is enabled, this is the charge pump current that is used for faster lock time.
FL_CPG
31
...
0
1
2
3
FL_R3_LF Value
FL_R4_LF Value
5-7
5-7
0
1
2
3
4
0
1
2
3
4
Fastlock Charge Pump State
32X
1X
2X
3X
4X
...
41
R3 Resistor During Fastlock (kΩ)
R3 Resistor During Fastlock (kΩ)
Low ( 200 Ω )
Low ( 200 Ω )
Reserved
Reserved
16
16
1
2
4
1
2
4
Typical Fastlock Charge Pump Current at
3.3 Volts (µA)
3200
100
200
300
400
...
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