lt5554 Linear Technology Corporation, lt5554 Datasheet - Page 15

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

FUNCTIONAL CHARACTERISTICS
Programmable Gain Table
STATE
127
126
125
124
123
122
121
120
119
118
112
111
104
103
…
…
…
96
95
…
64
63
…
32
31
…
N
8
7
6
5
4
3
2
1
0
0.125
PG0
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
0.25
PG1
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
PG2
0.5
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Step Size in dB
PG3
1
H
H
H
H
H
H
H
H
L
L
L
H
H
L
L
H
L
H
L
H
H
L
L
L
L
L
L
L
L
PG4
2
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
H
L
H
L
H
L
L
L
L
L
L
L
L
L
PG5
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
4
L
L
L
L
L
L
L
L
L
L
L
L
PG6
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
8
L
L
L
L
L
L
L
L
L
L
L
L
Step Relative to Max Gain
(N – 127) • 0.125dB
ATTENUATION
–11.875dB
–12.000dB
–14.875dB
–15.000dB
–15.125dB
–15.250dB
–15.375dB
–15.500dB
–15.625dB
–15.750dB
–15.875dB
–0.125dB
–0.250dB
–0.375dB
–0.500dB
–0.625dB
–0.750dB
–0.875dB
–1.125dB
–1.875dB
–2.875dB
–3.875dB
–7.875dB
–1.00dB
–2.00dB
–3.00dB
–4.00dB
–8.00dB
0.00dB
dB
GAIN STATE NAME
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
LT5554
G
G
G
MAX
MAX
MAX
MAX
MAX
MAX
G
MIN
MAX
MAX
MAX
MAX
MAX
MAX
MAX
MAX
MAX
MAX
G
G
MAX
MAX
G
G
G
G
G
MAX
MAX
MAX
MAX
MAX
MAX
MAX
MAX
MAX
(Max Gain)
–11.875dB
–14.875dB
–15.125dB
–15.375dB
–15.625dB
(Min Gain)
–0.125dB
–0.375dB
–0.625dB
–1.125dB
–1.875dB
–2.875dB
–3.875dB
–7.875dB
–15.25dB
–15.75dB
–0.25dB
–0.75dB
–15.5dB
–0.5dB
–12dB
–15dB
–1dB
–2dB
–3dB
–4dB
–8dB
15
5554f