AK1546 Datasheet, PDF (10/39 Pages) Asahi Kasei Microsystems – 3GHz Low Noise Integer-N Frequency Synthesizer

[AK1546]
Note 1) Mismatch between Source and Sink Currents : [(|Isink|-|Isource|)/{(|Isink|+|Isource|)/2}] × 100 [%]
Note 2) See “Charge Pump Characteristics - Voltage vs. Current”. Vcpo is the output voltage at [CP].
Icp vs. Vcpo : [{1/2×(|I1|-|I2|)}/{1/2×(|I1|+|I2|)}]×100 [%]
Note 3) IDD3 doesn’t include the current depending on Phase Detector Frequency. IDD3 is the current the
Charge Pump circuit consumes constantly.
Note 4) The test is done with the exposed pad at the center of backside connected to VSS.
Resistance Connected to the BIAS Pin for Setting Charge Pump Output Current
Parameter
Min. Typ. Max. Unit
Remarks
BIAS resistance
22
27
33
kΩ
Icp
I1
I2
Isink
Isource
I2
I1
0.5
CPVDD/2 CPVDD-0.5
Vcpo
Charge Pump Characteristics - Voltage (Vcpo) vs. Current (Icp)
MS1388-E-00
10
2012/3