lt5554 Linear Technology Corporation, lt5554 Datasheet - Page 9

• Manufacturer Part Number: lt5554
• Description: Broadband Ultra Low Distortion 7-bit Digitally Controlled Vga
• Manufacturer: Linear Technology Corporation

ENB = 3V, MODE = 5V, STROBE = 3V, V
Δf = 200kHz, unless otherwise noted.
TYPICAL PERFORMANCE CHARACTERISTICS
49
46
43
40
50
Two-Tone OIP3 vs Frequency for
G
MAX
G
MAX
and Critical Gain Steps
G
– 3.875dB
MAX
100
FREQUENCY (MHz)
–70
–74
–78
–82
–86
–70
–74
–78
–82
–86
– 12dB
G
0
0
Two-Tone IMD3 and OIP3 vs
Attenuation at 50MHz
Two-Tone IMD3 and OIP3 vs
Attenuation at 100MHz
MAX
– 15.875dB
G
MAX
150
–4
–4
IMD3
ATTENUATION (dB)
ATTENUATION (dB)
OIP3
IMD3
5554 G16
–8
–8
IH
200
= 2.2V, V
OIP3
–12
–12
IL
–70
–76
–82
–88
5554 G21
5554 G19
= 0.6V (Test circuit shown in Figure 16) P
50
Two-Tone IMD3 vs Frequency for
G
–16
–16
G
MAX
MAX
48
46
44
42
40
48
46
44
42
40
G
and Critical Gain Steps
– 3.875dB
MAX
– 12dB
100
FREQUENCY (MHz)
G
MAX
G
– 15.875dB
MAX
150
–70
–74
–78
–82
–86
–70
–74
–78
–82
–86
0
0
Two-Tone IMD3 and OIP3 vs
Attenuation at 140MHz
Two-Tone IMD3 and OIP3 vs
Attenuation at 70MHz
(R
5554 G17
OUT
200
–4
–4
IMD3
= 50Ω) T
ATTENUATION (dB)
ATTENUATION (dB)
IMD3
OUT
–8
32
30
28
26
24
–8
= 4dBm/tone (2V
50
A
IIP3 vs Frequency for G
G
= 25°C. V
OIP3
MAX
OIP3
G
MAX
–12
–12
–3.875dB
100
FREQUENCY (MHz)
CC
5554 G20
5554 G22
G
= 5V, V
–16
–16
MAX
P-P
48
46
44
42
40
48
46
44
42
40
– 3.875dB
into 50Ω),
LT5554
CCO
150
MAX
= 5V,
and
5554 G18
9
5554f
200