PEF2256 INFINEON [Infineon Technologies AG], PEF2256 Datasheet - Page 61

• Manufacturer Part Number: PEF2256
• Description: E1/T1/J1 Framer and Line Interface Component for Long- and Short-Haul Applications
• Manufacturer: INFINEON [Infineon Technologies AG]

Figure 13
3.4.2
To gain best performance, the following values are recommended for the external
de-coupling between V
Table 10
Parameter
Capacitance (C
Capacitor material
ESR
Loop inductance (L
between V
and next V
User’s Manual
Hardware Description
1.8 V
DDC
SS
Power Supply De-Coupling
pin
, capacitor
Dual Voltage Power Supply Mode
Decoupling Capacitor Parameters
DEC
)
L
)
3.3 V
DDC
and V
Ceramic, type X7R or compatible
< 30 m
Value
470 nF ± 20 %, alternatively: 2
< 10 nH
SS
.
V
V
V
V
V
V
V
V
V
DD
DDX
DDR
DDP
DDC
SS
SSP
SSX
SSR
FALC
61
®
56
VSEL
Functional Description E1/T1/J1
220 nF ± 20 %
F56V2_power_supply_dua
DS1.1, 2003-10-23
PEF 2256 H/E
FALC
®
56