RF2504 RF Micro Devices, RF2504 Datasheet - Page 8

• Manufacturer Part Number: RF2504
• Description: VCO/HIGH-ISOLATION BUFFER AMPLIFIER
• Manufacturer: RF Micro Devices

12
12-8
RF2504
-10.0
-20.0
-30.0
-40.0
-50.0
960.0
950.0
940.0
930.0
920.0
910.0
900.0
890.0
880.0
50.0
40.0
30.0
20.0
10.0
0.0
0.0
0.0
500.0
Frequency
Power
0.5
1000.0
Evaluation Board Data
1.0
Input Impedance
Frequency (MHz)
VCC = 5.0 V
VTune (V)
1500.0
1.5
2000.0
2.0
R Reference A
R Reference B
X Reference A
X Reference B
2500.0
2.5
measurements of RF2504
Reference positions for
3000.0
input impedance
3.0
50.0
0.0
-50.0
-100.0
-150.0
-200.0
-250.0
-300.0
-350.0
-400.0
-450.0
0.0
-1.0
-2.0
-3.0
-4.0
-5.0
-6.0
-7.0
-8.0
-9.0
-10.0
A
100 pF
0603
-0.5
-1.0
-10.0
-20.0
-30.0
-40.0
-50.0
3.0
2.5
2.0
1.5
1.0
0.5
0.0
50.0
40.0
30.0
20.0
10.0
0.0
B
0.0
0.0
Pin 2
500.0
500.0
Reference A
Reference B
1000.0
1000.0
Input Impedance
Frequency (MHz)
Frequency (MHz)
VCC = 2.7 V
VCC = 2.7 V
1500.0
S11
1500.0
2000.0
Preliminary
2000.0
R Reference A
R Reference B
X Reference B
X Reference A
2500.0
2500.0
Rev A2 010117
3000.0
3000.0
50.0
0.0
-50.0
-100.0
-150.0
-200.0
-250.0
-300.0
-350.0
-400.0
-450.0