PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 276

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

Semiconductor Group
Table 52
Parameter
Data clock rise/fall DCL
Clock period
Pulse width
high/low
Clock period
Pulse width
high/low
Frame width
high
Frame width
high
Frame synch.
rise/fall
Frame advance
Data out
Data out
Data delay clock
Data delay frame
1)
2) 768 kbit/s
3) FSC marking superframe
4) FSC marking non-superframe
5)
256 kbit/s
The point of time at which the output data will be valid is referred to the rising edges of
either FSC (
DCL) shall be the reference
3)
4)
1)
2)
1)
2)
t
dDF
IOM
5)
) or DCL (
5)
®
-2 Dynamic Output Characteristics
Signal Symbol
FSC
FSC
DOUT t
t
dDC
t
T
t
t
T
t
t
t
t
t
t
t
t
t
). The rising edge of the signal appearing last (normally
R
wH
wL
wH
wL
wFH
wFH
R
dF
F
R
dDC
dDF
DCL
DCL
, t
, t
, t
F
F
F
min.
1875
850
565
200
0
276
Limit Values
typ.
1953
960
651
310
T
2 T
65
DCL
DCL
max.
30
2035
1105
735
420
30
130
200
150
100
150
Electrical Characteristics
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
C
C
C
C
C
C
C
C
( R = 1 k to
V
high) or RESQ
pin low
C
DOD pin low
RESQ pin high
C
C
Data Sheet 01.99
DD
L
L
L
L
L
L
L
L
L
L
L
Condition
= 25 pF
= 25 pF
= 25 pF
= 25 pF
= 25 pF
= 25 pF
= 25 pF
= 150 pF
= 150 pF
= 150 pF
= 150 pF
, DOD pin
PEB 2091
PEF 2091
Test