AS2524B austriamicrosystems AG, AS2524B Datasheet - Page 9

• Manufacturer Part Number: AS2524B
• Description: Telephone Line Interface and Speakerphone Circuit
• Manufacturer: austriamicrosystems AG

Data Sheet AS2523, AS2524, AS2524B
Serial interface Registers
The following table shows the content of the 16 control registers.
For a detailed description of the commands see Application note AN523/24.
Revision 1.12, Preliminary
A A A A
3 2 1 0
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 1
1 1 1 0
1 1 1 1
Address
0 1 1 1
1 1 0 0
Nop
16 gains
16 gains
16 gains
x x x x
D D D D
3 2 1 0
x x x x
x x x x
x x x x
x x x x
x x x x
Data
Control registers AS2523
Conf-Tone:
LIV: Voltage at pin LI
LLC1 LLC0: Line loss compensation setting
BURS: Analog tone at RO
BURL: Analog tone at LS
CT1 CT0: @RO
Softclip-settings, Tx_comp_gain settings
Bit1 Bit0 :Tx_comp_gain
SOFTRX: Softclip RX
SOFTTX: Softclip TX
Bit1 Bit0: Rx-offset setting
Delay_10ms
Bnon
Handsfree receive endgain
Data
0x0
0xF
off1 off0: BGN-offset
Hfs1 HFs0: Speed of voice switching
Transmit gain [16], 16 steps, 1dB stepsize
Data
0x0
0xF
Receive gain [16], 16 steps, 1dB stepsize
Data
0x0
0xF
HP_on
rec_on :
Mute
Tone
Mask, Lh, Hf, Hook Switch
Mask:
His
slow_rec: fast change to TX, slow change to RX, no IDLE
Krat5,Test3,Test2: For factory test only !
Reset to defaults
0
0
1
1
0
0
1
1
:
:
:
0
0
1
1
0
0
1
1
0
0
1
1
0
1
1
1
1
0
0
1
1
0
1
0
1
0
1
0
1
RXgain
-20dB
HS-mode
HS-mode
HF
x
0
0
1
1
0
1
0
1
0
1
0
1
+0dB
0
1
0
1
:
:
:
0
1
0
1
30dB
45dB
-6dB
+9dB
-36dB
-30dB
-24dB
-18dB
:
:
:
+8dB
+11dB
+14dB
+17dB
20mA-50mA
NO Line loss compensation
45-75mA
NO Line loss compensation
0mV
12mV
40mV
100mV
max speed
min speed
LH: Hook functions
x
0
1
0
1
TXgain
-30dB
120mV
180mV
240mV
300mV
-50dB
HF-mode
HF-mode
0... fg=200Hz
0... Rxcomp=AGND
0... No mute
0... Tx-signal path 1... Ton in signal path
0... No mask
Power down
Handset
not allowed
Handsfree
Loudhearing
@LS
-15dB
39dB
54dB
19dB
34dB
-9dB
-3dB
+3dB
:
:
0... No Conf Tone 1... Conf Tone
Min. receive volume
TONE-confidence level
rel. to pin LS
0...OFF,
0...OFF,
Max. receive volume
0... no delay
0... BGN off
0...3.5V, 1...4.5V
0...OFF,
0...OFF,
1...ON
1...ON
1... fg=2000Hz
1... Rxcomp=RECV
1... Tx-path muted
1... Mask acitivated
1... 10ms delay
1... BGN on
1...ON
1...ON
for AS2523,
AS2524HF
0111
0001
1000
0101
1111
0000
0111
1111
0100
0100
0000
na
na
na
na
na
austriamicrosystems
Default value
after reset
for AS2524 LH bond
0111
0001
1000
1100
1011
1100
0111
1111
1000
0101
0001
option
na
na
na
na
na
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