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AS2522BF Datasheet(PDF) 11 Page - ams AG

No. de pieza AS2522BF
Descripción Electrónicos  Telephone Line Interface and Speakerphone Circuit
PDF  20 Pages
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Fabricante Electrónico  AMSCO [ams AG]
Página de inicio  http://www.ams.com
Logo AMSCO - ams AG

AS2522BF Datasheet(HTML) 11 Page - ams AG

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Data Sheet AS2522B
austriamicrosystems
Revision 3.4
Page 10 of 19
Control registers AS2522A, AS2522B
Default value
after reset
AA AA D DD D
32 10 32 10
1
0
0
0 16 gains
Handsfree receive endgain
0111
Data
RXgain
TXgain
0x0
-20dB
-30dB
Min. receive volume
::
0xF
0dB
-50dB
Max. receive volume
1
0
0
1
x
x
x
x
Handsfree switching characteristic
1000
off1 off0: BGN-offset
0
0
120mV
0
1
180mV
1
0
240mV
1
1
300mV
Hfs1 HFs0: Speed of voice switching
0
0
max speed
01
10
1
1
min speed
1
0
1
0 16 gains
Transmit gain [16], 16 steps, 1dB stepsize
0111
Data
HS-mode
HF-mode
0x0
30dB
39dB
::
:
0xF
45dB
54dB
1
0
1
1 16 gains
Receive gain [16], 16 steps, 1dB stepsize
0111
Data
HS-mode
HF-mode
0x0
-6dB
22dB
::
:
0xF
+9dB
37dB
1
1
0
0
x
x
x
x
FSK-mode, LLC[2], LI-Voltage
0111
AS2522B:
FSK: Frequency select in single tone mode AS2522B ONLY
FSK:
0
Single Tone frequencies are read from Addr. 4:
frequ1, frequ0
1
Single Tone frequencies are read from Addr. 1:
f4,f3,f2,f1
AS2522A
FSK: For factory test only !
LIV: Voltage at pin LI
0...3.5V, 1...4.5V
LLC1 LLC0: Line loss compensation setting
0
0
20mA-50mA
0
1
NO Line loss compensation
1
0
45-75mA
1
1
NO Line loss compensation
1
1
0
1
x
x
x
x
Mute, Lh, Hf, Hook Switch
0000
Mute: Mute transmit
0...OFF,
1...ON
HisHfLh
0x
x
On Hook
1
0
0
Off Hook, Handset mode
1
1
0
Off Hook, Handfree mode
1
1
1
Off Hook, Loudhearing mode
11
10
x
x
x
x
Krat5,Test3,Test2,Test1: For factory test only !
0000
11
11 x
x
x
x
Reset to defaults
na
Address
Data



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