AK1590 Datasheet, PDF (9/36 Pages) Asahi Kasei Microsystems – 1GHz Delta-Sigma Fractional-N Frequency Synthesizer

[AK1590]
3. Analog Circuit Characteristics
The resistance of 27kΩ is connected to [BIAS] pin, VDD1 = 2.7V to 5.5V, VDD2 = VDD1 to 5.5V, –40°C ≤ Ta ≤ 85°C
Parameter
Min. Typ. Max. Unit
Remarks
Input Sensitivity
Input Frequency
Input Sensitivity
Input Frequency
Maximum Allowable Prescaler Output
Frequency
Phase Detector Frequency
Charge Pump 1 Maximum Current
Charge Pump 1 Minimum Current
Charge Pump 2 Maximum Current
Charge Pump 2 Minimum Current
Icp TRI-STATE Leak Current
RF Characteristics
-10
+5
60
500
60
1000
REFIN Characteristics
0.4
2
5
40
Prescaler
dBm
MHz
MHz
Prescaler 4/5
Prescaler 8/9,16/17
Vpp
MHz
125 MHz
Phase Detector
5
Charge Pump
168.9
21.1
2.32
0.84
1
MHz
A
A
mA
mA
nA 0.6 ≤ Vcpo ≤ VDD2-0.7
Mismatch between Source and Sink Currents
(Note 1)
10
% Vcpo = VDD2/2, Ta = 25°C
Icp vs. Vcpo (Note 2)
VREF Rise Time
IDD1
IDD2
IDD3
IDD4
15
Regulator
50
Current Consumption
10
2.4
3.6
0.17
0.5
% 0.5 ≤ Vcpo ≤ VDD2-0.5, Ta = 25°C
s
Power Down mode
A
[PDN1]=“Low”, [PDN2]=”Low"
[PDN1]=”High”, [PDN2]=”High”
mA
IDD for [PVDD]
[PDN1]=”High”, [PDN2]=”High”
mA
IDD for [CPVDD] (Note 3)
Power Save mode
mA
[PDN1]=“High”, [PDN2]=”Low"
Note 1) Mismatch between Source and Sink Currents: [(|Isink|-|Isource|)/{(|Isink|+|Isource|)/2}] × 100 [%]
Note 2) See “Fig. 4 Charge Pump Characteristics - Voltage vs. Current”: Icp vs. Vcpo:
[{1/2×(|I1|-|I2|)}/{1/2×(|I1|+|I2|)}]×100 [%]
MS1478-E-01
9
2013/2