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Address 15 14 13 - 12 11 10 9 8 7 - 0
Bit Weight
32768 16384 2048 1024 512 256 ---
base + 04
16
(status)
not used
(0)
MODID* not used
(0)
Main
Output
Ovld
Input 1
Enable
Input 2
Enable
Main
Output
State
FF
16
* active low
Address 15 - 1 0
Bit Weight
1
base + 04
16
not used Reset
Address 1514131211109876543210
Bit Weight
32768 16384 8192 4096 2048 1024 512 256 128 64 32 16 8421
base + 08
16
DAC Control Code
Address 15 - 8 76543210
Bit Weight - -
1286432168421
base + 0A
16
FF
16
0dB
output
path
-20dB
output
path
50-75
Ω
output
imped.
’Main’
output
enable /
disable
50-75
Ω
out imp
of
non -inv
amp
50-75
Ω
out imp
of inv
amp
0
Ω
output
inped.
reserved
(must be
set to ’1’)
Address 1514131211109876543210
Input 1 attenuation and impedance X Input 2 attenuation and impedance
Bit Weight
32768 16384 8192 4096 2048 1024 512 256 128 64 32 16 8421
base + 0C
16
16dB
atten
8dB
atten
4dB
atten
2dB
atten
1dB
atten
75
Ω
in
imp
50
Ω
in
imp
not
used
16dB
atten
8dB
atten
4dB
atten
2dB
atten
1dB
atten
75
Ω
in
imp
50
Ω
in
imp
relay
act.
Table C-2. E1446A Register Bit Weights.
Programming the Amplifier Register-Based Programming C-13