LT5554 Datasheet, PDF (8/32 Pages) Linear Technology – Broadband Ultra Low Distortion 7-Bit Digitally Controlled VGA

LT5554
TYPICAL PERFORMANCE CHARACTERISTICS (R_OUT = 50Ω) T_A = 25°C. V_CC = 5V, V_CCO = 5V,
ENB = 3V, MODE = 5V, STROBE = 3V, V_IH = 2.2V, V_IL = 0.6V (Test circuit shown in Figure 16), unless otherwise noted.
Integral Gain Error vs
Attenuation at 50MHz
0.4
–40°C
25°C
85°C
0.3
Integral Gain Error vs
Attenuation at 100MHz
0.4
–40°C
25°C
85°C
0.3
Integral Gain Error vs
Attenuation at 200MHz
0.4
–40°C
25°C
85°C
0.3
0.2
0.2
0.2
0.1
0.1
0.1
0
0
0
–0.1
0
–4
–8
–12
ATTENUATION (dB)
–16
5554 G07
–0.1
0
–4
–8
–12
ATTENUATION (dB)
–16
5554 G08
–0.1
0
–4
–8
–12
ATTENUATION (dB)
–16
5554 G09
Maximum Gain vs Temperature
18.0
17.8
50MHz
17.6
100MHz
200MHz
17.4
P_OUT vs P_IN at Maximum Gain
24
70MHz
140MHz
16
200MHz
8
0
P_OUT vs P_IN at G_MAX – 3.875dB
24
70MHz
140MHz
16
200MHz
8
0
17.2
–8
–8
17.0
–40 –20
0 20 40 60
TEMPERATURE (°C)
80
5554 G10
–16
–35 –25 –15 –5
PIN (dBm)
5
15
5554 G11
–16
–35 –25 –15 –5
PIN (dBm)
5
15
5554 G12
(R_OUT = 50Ω) T_A = 25°C. V_CC = 5V, V_CCO = 5V, ENB = 3V, MODE = 5V, STROBE = 3V, V_IH = 2.2V, V_IL = 0.6V (Test circuit shown in Figure
16) P_OUT = 4dBm/tone (2V_P-P into 50Ω), Δf = 200kHz, unless otherwise noted.
Two-Tone OIP3 vs Frequency at
Max Gain, Three Temperatures
49
85°C
Two-Tone IMD3 vs Frequency at
Max Gain, Three Temperatures
–76
IIP3 vs Frequency at Max Gain,
Three Temperatures
32
85°C
25°C
–79
30
46
–40°C
25°C
–82
–40°C
43
–85
28
25°C
26
85°C
–40°C
40
0
50
100
150
FREQUENCY (MHz)
200
5554 G13
–88
0
50
100
150
FREQUENCY (MHz)
200
5554 G14
24
0
50
100
150
FREQUENCY (MHz)
200
5554 G15
5554f
8