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MAS9090B 数据表(PDF) 22 Page - Micronas

部件名 MAS9090B
功能描述  LOW VOLTAGE 14-BIT LINEAR CODEC
PDF  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  MICRONAS [Micronas]
网页  http://www.micronas.com
标志 MICRONAS - Micronas

MAS9090B 数据表(HTML) 22 Page - Micronas

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DA9090B.001
January 14, 1998
22
FUNCTIONAL DESCRIPTION
Control register CR6
7
6
5
4
3
2
1
0
Function
Earpiece Gain
(SP1)
Extra Gain
(SP2)
0
0
-
1
0
0
-
1
0
0
-
1
0
1
-
1
0 dB gain
*
-2 dB gain
in -2 dB steps
-30 dB gain
0
0
-
1
0
0
-
1
0
0
-
1
0
1
-
1
0 dB gain
*
-2 dB gain
in -2 dB steps
-30 dB gain
Control register CR7
7
6
54
3210
Function
Tone gain
f1
f2
SN
DE
Attenuation
f1 dBm0
f2 dBm0
f1+f2 dBm0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
1
X
X
0
0
1
1
0
0
1
1
X
X
0
1
0
1
0
1
0
1
0
1
0 dB gain *
-3 dB
-6 dB
-9 dB
-12 dB
-15 dB
-18 dB
-21 dB
-24 dB
-27 dB
1.20 (2)
-25.80
-0.87 (2)
-27.87
-1.81 (2)
-28.81
0
0
1
1
0
1
0
1
f1 and f2 muted
*
f2 selected
f1 selected
f1 and f2 in summed mode
0
1
Squarewave signal selected
*
Sinewave signal selected
0
1
Normal operation
*
Tone/Ring generator connected to TX path
Control register CR8
7
654321
0
Function
d7
d6
D5
d4
d3
d2
d1
d0
msb
f1 control word
Control register CR9
7
654321
0
Function
d7
d6
d5
d4
d3
d2
d1
d0
msb
f2 control word
(2)
values are calculated from TX output, levels on RX are 6 dB smaller
X
don’t care
*
state at power on initialization



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