PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 34

• Manufacturer Part Number: PEF2091
• Description: ICs for Communications(ISDN Echocancellation Circuit)
• Manufacturer: Siemens Semiconductor Group

Semiconductor Group
Pin No.
P-LCC-44
33
35
36
18
2.2.1.2
1, 2
5
7, 8
9
13
16
23
Power Supply Pins
Pin No.
T-QFP64
M-QFP64
55
58
59
35
7, 8, 12
14
18, 19
21
26
30
41
Symbol
TS0
TS1
TS2
AUTO
V
GNDA1
V
V
V
GNDA2
GNDD
DDD
DDA1
REF
DDA2
Input (I)
Output (O)
I
I/O
I
I/O
I
I
I
O
I
I
I
34
Function
Time-slot: IOM
for burst mode. LSB, active high. See
Table 2, page 51 for details on mode
selection.
Time-slot: IOM
for burst mode. Active high. See Table
2, page 51 for details on mode
selection.
Time-slot: IOM
for burst mode. MSB, active high. See
Table 2, page 51 for details on mode
selection.
Auto: Selection between auto and
transparent mode for EOC channel
processing. (Auto mode = (1))
5 V
0 V analog
5 V
V
voltage. Connect a capacitor of 100 nF
to GND
5 V
0 V analog
0 V digital
REF
pin to buffer internally generated
5% digital supply voltage
5% analog supply voltage
5% analog supply voltage
®
®
®
-2 channel selection
-2 channel selection
-2 channel selection
Pin Descriptions
Data Sheet 01.99
PEB 2091
PEF 2091