PXB4220E Infineon Technologies AG, PXB4220E Datasheet - Page 249
PXB4220E
Manufacturer Part Number
PXB4220E
Description
Interworking Element for 8 E1/T1 Lines
Manufacturer
Infineon Technologies AG
Datasheet
1.PXB4220E.pdf
(290 pages)
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Table 35
No.
1
1A
2
2A
3
4
5
6
7
1)
Data Sheet
In case the Internal Clock Recovery Circuit is used for SRTS, the frequency deviation should be +/- 10 ppm
Parameter
T
F
T
F
Delay FRCLK falling to FRFRS
Setup time FRDAT before FRCLK
falling (center of bit period)
Hold time FRDAT after FRCLK falling
(center of bit period)
Setup time FRMFB before FRCLK
falling (center of bit period)
Hold time FRMFB after FRCLK falling
(center of bit period)
RFCLK
RFCLK
FRCLK
FRCLK
Framer Receive Interface Timing in FAM
: Period RFCLK
: Frequency RFCLK
: Period FRCLK
: Frequency FRCLK
1)
1)
249
PXB 4219E, PXB 4220E, PXB 4221E
Min
- 130
ppm
- 130
ppm
3
15
15
15
15
Limit Values
Typ
30,518
32,768
122
8,192
Electrical Characteristics
Max
+130
ppm
+130
ppm
32
IWE8, V3.4
2003-01-20
Unit
ns
MHz
ns
MHz
ns
ns
ns
ns
ns
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