AS2536 austriamicrosystems, AS2536 Datasheet - Page 3

• Manufacturer Part Number: AS2536
• Description: IC MULTI-STANDARD CMOS TELEPHONE SOIC-28
• Manufacturer: austriamicrosystems

Specifications of AS2536

• Audio Control Type: Volume
• Control / Process Application: Electronic Telephonic Set
• Supply Voltage Range: 3.8V To 5V
• Operating Temperature Range: -25°C To +70°C
• Audio Ic Case Style: SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Data Sheet AS2533-36
Selection Overview
The corresponding product (AS2533-36) can be selected via bond-options (see chapter “Bond options” for details).
Revision 8.8
Function
Direct memories (one-key)
Indirect memories (two-key)
Repeat dialing
LNR key
Pause insertion by LNR key
Pause (PS) key
P/M or MT key
Tone/Pulse (T/P) key
Temporary MF by * key
Centrex (A - D) keys
Volume (VOL, –/+) keys
Volume reset by off-hook
Programming of tone ringer
R3 Flash duration
Pin #
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
Symbol
LED
MFL
FCI
V
RO
M1
M2
CS
R4
R3
R2
R1
LS
RI
LI
SS
Keyboard Rows
(see key arrangements in Figure 2, Figure 3 and Figure 4)
F
This is a Schmitt trigger input for ring frequency discrimination. Disabled during off-hook.
LED
Output for driving an LED that will be flashing when in Program/Mute state.
Microphone Inputs
Differential inputs for the microphone (electret).
C
This N-channel open drain output controls the external high power shunt transistor for the modulation
of the line voltage and for shorting the line during make period of pulse dialing.
Negative Power Supply
L
This input is used for power extraction and line current sensing.
R
This is the input for the receive signal.
L
This is the input for sensing the line current.
MF L
A voltage divider connected from this pin to A
R
This is the output for driving a dynamic earpiece with an impedance of 150 to 300 Ω.
ine
ine Current
requency
urrent
eceive
eceive
I
Output Driver
nput
evel Setting
S
I
O
nput
hunt Control Output
C
utput
S
omparator
ense Input
I
nput
AS2533
600 ms
P/M
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
10
4
GND
Function
and V
AS2534/34R
AS2534R: no
AS2534:yes
600 ms
P/M
yes
yes
yes
yes
yes
yes
yes
yes
SS
no
0
0
can be used to set the DTMF level.
austriamicrosystems
AS2535
600 ms
P/M
yes
yes
yes
yes
yes
yes
12
no
no
no
no
0
AS2536
600 ms
P/M
yes
yes
yes
yes
yes
yes
yes
yes
yes
10
no
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