as2504 austriamicrosystems, as2504 Datasheet - Page 3

• Manufacturer Part Number: as2504
• Description: Cordless Telephone, Answering Machine Line Interface
• Manufacturer: austriamicrosystems

Preliminary Data Sheet
Pin #
15
10
16
22
21
18
17
20
19
8
9
Symbol
ROH1
ROH2
ARO1
AUX0
AUX1
ATI3
VOL
HSS
RX0
TX0
TX1
A
R
R
Output for driving a dynamic earpiece with an impedance from 150 to 300
(max. 0.7Vp)
R
Output for driving a dynamic earpiece with an impedance from 150 to 300
(max. 1.4Vp)
A
R
VOL
Input pin for increasing (= connect to V
to V
V
H
Digital input to select the ROH1 or ROH2 signal output path
R
Digital input to select a signal path
A
Digital input to select a signal path
A
Digital input to select a signal path
T
Digital input to select a signal path
T
Digital input to select a signal path
DD
I
L
ransmit
ransmit
uxiliary
eceive
eceive
uxiliary
and
eceive
uxiliary
uxiliary
>= 100k
> 10k
IN
-1.4V. Max rise time 50ns, max fall time 50ns, min pulse width 1us
ume
S
<= VSS+0.3V) the Rx volume. The idle state is between V
et or Head
O
O
0
T
R
0
1
0
1
ransmit
utput to
utput to
(max. 1.4Vp)
/ bit
eceive
/ bit
/ bit
/ bit
/ bit





O
S
I
H
H
nput
et / bit
utput
andset
andset
3
1


1
2
3/12
Function
IN
>= V
DD
-0.3V) or decreasing (= connect
SS
+1.4V < V
August 1998
AS2504
IN
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