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AS2522B Datasheet(PDF) 8 Page - ams AG

No. de pieza AS2522B
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

AS2522B Datasheet(HTML) 8 Page - ams AG

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Data Sheet AS2522B
austriamicrosystems
Revision 3.4
Page 7 of 19
Serial Interface
Registers
The settings of the AS2522 are stored in 16 registers. Each
register has 4 bit data width. Writing data into the AS2522 also
causes the sending of the AS2522 status information on Pin D0.
This information consists of the DC-current information (from the
Line Loss Compensation circuit) and the status of the power-on
reset circuit to test if AS2522 has already powered up.
D7
D6
D5
D4
D3
D2
D1
D0
LLC5
LLC4
LLC3
LLC2
LLC1
LLC0 xPOR
POR
Power on reset information in Statusbits D1 and D0
D1
D0
00
0
1
AS2522 is in POR state
1
0
AS2522 is active
11
DC-current information in Statusbits D7 – D2
D[7:2]
LLC-bit LO
LLC-bit HI
000000
<20mA
<45mA
000001
20-26mA
45-51mA
000011
26-32mA
51-57mA
000111
32-38mA
57-63mA
001111
38-44mA
63-69mA
011111
44-50mA
69-75mA
111111
>50mA
>75mA



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