AK1544 Datasheet, PDF (9/37 Pages) Asahi Kasei Microsystems – 1300MHz Integer-N Frequency Synthesizer

[AK1544]
3. Analog Circuit Characteristics
The resistance of 27kΩ is connected to the [BIAS] pin, VDD1＝2.7V to 5.5V, VDD2=VDD1 to 5.5V, –40°C ≤ Ta ≤ 85°C
Parameter
Min. Typ. Max. Unit
Remarks
RF Characteristics
Input Sensitivity
Input Frequency
-10
+5 dBm
400
1300 MHz
Input Sensitivity
Input Frequency
Maximum Allowable
Frequency
Prescaler
REFIN Characteristics
0.4
2
4
Output
40
81.25
Phase Detector
Vpp
MHz
MHz
Phase Detector Frequency
3
MHz
Charge Pump
Charge Pump Maximum Value
Charge Pump Minimum Value
Icp TRI-STATE Leak Current
Mismatch between Source and Sink Currents
Note 1)
Icp vs. Vcpo Note 2)
2530
160
1
10
15
A
A
nA
0.7≤Vcpo≤VDD2-0.7
Vcpo : Voltage at CP pin
% Vcpo=VDD2/2, Ta=25°C
% 0.5≤Vcpo≤VDD2-0.5, Ta=25°C
Others
VREF Rise Time
50
s
Consumption Current
IDD1
IDD2
IDD3
10
2.4 3.5
0.4 0.9
A [PDN1]=“Low”, [PDN2]=”Low"
[PDN1]=”High”, [PDN2]=”High”
mA
IDD not including VDD2
[PDN1]=”High”, [PDN2]=”High”
mA
IDD for VDD2
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 [%]
Note 3) [PDN1]=”High”, [PDN2]=”High”, the total current consumption = IDD2 + IDD3
Note 4) In the shipment test, the exposed pad on the center of the back of the package is connected to ground.
MS1350-E-01
9
2013/03