AK1545 Datasheet, PDF (9/39 Pages) Asahi Kasei Microsystems – 3.5GHz Low Noise Integer-N Frequency Synthesizer

[AK1545]
3. Analog Circuit Characteristics
VDD1＝2.7V to 5.5V, VDD2=VDD1 to 5.6V, –40°C ≤ Ta ≤ 85°C, unless otherwise specified.
Parameter
Min. Typ. Max. Unit
Remarks
Input Sensitivity
Input Frequency
RF Characteristics
-10
2
500
3500
dBm
MHz
REFIN Characteristics
Input Sensitivity
0.4
VDD1 Vpp
Input Frequency
Maximum Allowable Prescaler Output
Frequency
5
100
120
Phase Detector
MHz
MHz
Phase Detector Frequency
55
MHz
Charge Pump
Charge Pump High Value
1
mA
Charge Pump Low Value
250
μA
Icp TRI-STATE Leak Current
1
Mismatch between Source and Sink Currents
(Note 1)
3
Icp vs. Vcpo (Note 2)
2
nA 0.6≤Vcpo≤VDD2-0.7, Ta=25°C
% Vcpo=VDD2/2, Ta=25°C
% 0.5≤Vcpo≤VDD2-0.5, Ta=25°C
Noise Characteristic
Normalized Phase Noise Floor
-217
dBc/Hz
Current Consumption
IDD1
10
μA [PDN]=“0” or {PD1}=1
IDD2 (Note3, Note4)
12
18
mA [PDN]=”1”, {PD1}=0, IDD for VDD1
IDD3 (Note4)
0.4
0.7
mA [PDN]=”1”, {PD1}=0, IDD for VDD2
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) When [PDN] = ”1” and {PD1}=0, the total power supply current of the AK1545 is “IDD2+IDD3+ Charge
pump current”.
Note 4) RFIN=3.5GHz,5dBm, REFIN=100MHz,10dBm, {R}=100,{B}=109,{A}=12
MS1471-E-00
9
2012/10