ISL59421 Datasheet, PDF (4/12 Pages) Intersil Corporation – 865MHz Multiplexing Amplifier

ISL59421
Typical Performance Curves V_S = ±5V, R_L = 500Ω to GND, T_A = 25°C, unless otherwise specified.
5
4
A_V = 1
V_OUT = 100mV_P-P
3 ^{RF = 357Ω}
2
1
C_L = 9.7pF
0
-1
-2
-3
-4 ^{CL INCLUDES 1.6pF}
BOARD CAPACITANCE
-5
1
10
C_L = 7.2pF
C_L = 4.9pF
C_L = 1.6pF
100
FREQUENCY (MHz)
1000
FIGURE 1. SMALL SIGNAL GAIN vs FREQUENCY vs C_L
5
4
A_V = 1
V_OUT = 100mV_P-P
3 C_L = 4.9pF
2 ^{RF = 357Ω}
1
0
R_L = 1kΩ
-1
R_L = 500Ω
-2
-3
R_L = 150Ω
-4
R_L = 75Ω
-5
1
10
100
1000
FREQUENCY (MHz)
FIGURE 2. SMALL SIGNAL GAIN vs FREQUENCY vs R_L
5
A_V = 2
4 V_OUT = 2V_P-P
3 ^{RG = RF = 100Ω}
2
1
0
C_L = 9.7pF
-1
-2
-3
-4 ^{CL INCLUDES 1.6pF}
BOARD CAPACITANCE
-5
1
10
C_L = 7.2pF
C_L = 6.3pF
C_L = 1.6pF
100
1000
FREQUENCY (MHz)
FIGURE 3. LARGE SIGNAL GAIN vs FREQUENCY vs C_L
5
4
A_V = 2
V_OUT = 2V_P-P
3 C_L= 4.9pF
2 ^{RG = RF = 100Ω}
1
R_L = 1kΩ
0
R_L = 500Ω
-1
R_L = 150Ω
-2
R_L = 75Ω
-3
-4
-5
1
10
100
1000
FREQUENCY (MHz)
FIGURE 4. LARGE SIGNAL GAIN vs FREQUENCY vs R_L
0.2
0.1
C_L = 9.7pF
0
-0.1
-0.2
-0.3
C_L = 7.2pF
-0.4
-0.5
A_V = 1
V_OUT = 100mV_P-P
-0.6 ^RF ^{= 357Ω}
C_L = 4.9pF
C_L = 1.6pF
-0.7 ^{CL INCLUDES 1.6pF}
BOARD CAPACITANCE
-0.8
1
10
100
FREQUENCY (MHz)
1000
FIGURE 5. SMALL SIGNAL 0.1dB GAIN vs FREQUENCY vs C_L
4
0.2
0.1
R_L=1kΩ
0
-0.1
R_L = 500Ω
-0.2
-0.3
R_L = 150Ω
-0.4
-0.5 _{AV = 1}
-0.6 ^{VOUT = 100mVP-P}
C_L = 4.9pF
-0.7 _{RF = 357Ω}
-0.8
1
10
R_L = 75Ω
100
1000
FREQUENCY (MHz)
FIGURE 6. SMALL SIGNAL 0.1dB GAIN vs FREQUENCY vs R_L
FN7458.1
September 21, 2005