pxb4219 Infineon Technologies Corporation, pxb4219 Datasheet - Page 249

• Manufacturer Part Number: pxb4219
• Description: Iwe8 Interworking Element For 8 E1/t1 Lines
• Manufacturer: Infineon Technologies Corporation

Table 35 Framer Receive Interface Timing in FAM
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
: Period RFCLK
: Frequency RFCLK
: Period FRCLK
: Frequency FRCLK
1)
1)
249
Limit Values
Min
- 130
ppm
- 130
ppm
3
15
15
15
15
PXB4219 / PXB4220 / PXB4221
Typ
30,518
32,768
122
8,192
Electrical Characteristics
Max
+130
ppm
+130
ppm
32
2002-05-06
Unit
ns
MHz
ns
MHz
ns
ns
ns
ns
ns