LMX2487 National Semiconductor Corporation, LMX2487 Datasheet - Page 17

• Manufacturer Part Number: LMX2487
• Description: 3.0 Ghz - 6.0 Ghz High Performance Delta-sigma Low Power Dual Pllatinum? Frequency Synthesizers With 3.0 Ghz Integer Pll
• Manufacturer: National Semiconductor Corporation

Bench Test Setups
Charge Pump Current Specification Definitions
I1 = Charge Pump Sink Current at V
I2 = Charge Pump Sink Current at V
I3 = Charge Pump Sink Current at V
I4 = Charge Pump Source Current at V
I5 = Charge Pump Source Current at V
I6 = Charge Pump Source Current at V
∆V = Voltage offset from the positive and negative supply rails. Defined to be 0.5 volts for this part.
v
I
Charge Pump Output Current Variation vs. Charge Pump Output Voltage
Charge Pump Sink Current vs. Charge Pump Output Source Current Mismatch
Charge Pump Output Current Variation vs. Temperature
CPout
CPout
refers to either I
refers to either V
CPoutRF
CPoutRF
or I
or V
CPoutIF
(Continued)
CPoutIF
CPout
CPout
CPout
CPout
CPout
CPout
= Vcc - ∆V
= Vcc/2
= ∆V
= Vcc - ∆V
= Vcc/2
= ∆V
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