PXB4221 Infineon Technologies AG, PXB4221 Datasheet - Page 250

• Manufacturer Part Number: PXB4221
• Description: IWE8 Interworking Element for 8 E1/T1 Lines
• Manufacturer: Infineon Technologies AG

Framer Transmit Interface
Figure 58
Table 36
No.
1
1A
2
2A
3
4
5
1)
Data Sheet
RFCLK
FTCKO
FTFRS
FTDAT
FTMFS
In case the Internal Clock Recovery Circuit is used for SRTS, the frequency deviation should be +/- 10 ppm
Parameter
T
F
T
F
Delay FTCKO in falling to FTFRS
Delay FTCKO out falling to FTFRS
Delay FTCKO in falling to FTDAT
Delay FTCKO out falling to FTDAT
Delay FTCKO in falling to FTMFS
Delay FTCKO out falling to FTMFS
RFCLK
RFCLK
FTCKO
FTCKO
Framer Transmit Interface Timing in FAM
Framer Transmit Interface Timing in FAM
: Period RFCLK
: Frequency RFCLK
: Period FTCKO
: Frequency FTCKO
3
1
1)
4
5
1)
3
250
Limit Values
Min
-130 ppm 122
-130 ppm 8,192
3
-3
3
-3
3
-3
PXB4219 / PXB4220 / PXB4221
Typ
30,518
32,768
Electrical Characteristics
2
5
Max
+130
ppm
+130
ppm
32
32
32
32
32
32
2002-05-06
Unit
ns
MHz
ns
MHz
ns
ns
ns
ns
ns
ns