PEF 22508 E V1.1-G Infineon Technologies, PEF 22508 E V1.1-G Datasheet - Page 59

• Manufacturer Part Number: PEF 22508 E V1.1-G
• Description: IC INTERFACE E1/T1/J1 LBGA-256
• Manufacturer: Infineon Technologies
• Series: OctalLIU™r

Specifications of PEF 22508 E V1.1-G

• Function: Line Interface Unit (LIU)
• Interface: E1, J1, T1
• Number Of Circuits: 8
• Voltage - Supply: 1.8V, 3.3V
• Current - Supply: 370mA
• Power (watts): 140mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 256-LSBGA
• Includes: Automatic Protection Switching, Clock Generation, Power-Down, Transmit Line Monitor, Tristate Function
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: PEF22508EV1.1T; PEF22508EV11GXP; SP000029953

Table 14
Parameter
R
R
R
t
1) This includes all parasitic effects caused by circuit board design.
Using the receive line monitor mode and the hardware tristate function of transmit lines XL1/2 on the line side and
the tristate functions on the framer side, the OctalLIU
receive and transmission line. In these kind of applications both channels are working in parallel for redundancy
purpose (see
tristate mode. If both channels are configured identically and supplied with the same system data and clocks, the
transmit path can be switched from one channel to the other without causing a synchronization loss at the remote
end.
Figure 21
RDOP and FCLKR can be set into tristate mode constantly for redundancy applications using the register bit
DIC3.RRTRI (DIC3) and - if the RTDMT function is selected on one of the multi function port - by RTDMT, see
Chapter
enables an easy redundancy application using only one signal for switching between two devices. If the RTDMT
function is not selected DIC3.RRTRI = ´1´ set the pins into tristate mode constantly. In this mode “tristate” means
high impedance against V
Data Sheet
2
1
2
3
:
( 1 %) ( )
( 1 %) ( )
( 1 %) ( )
t
1
3.12. If the RTDMT function is selected the values of RTDMT and DIC3.RRTRI are logically exored. This
1)
External Component Recommendations (Monitoring)
Redundancy Application using RLM (shown for one line)
Figure
E1/T1/J1
Transmit
E1/T1/J1
Receive
Line
Line
21). While one of them is driving the line, the other one must be switched into transmit line
75
75
75
330
1 :1
DD
and V
Characteristic Impedance (Ohm)
SS
: No pull up or pull down resistor is active.
E1
120
120
120
510
1 :1
TM
59
XL1
XL2
RL1
RL2
XL1
XL2
RL1
RL2
supports applications connecting two channels to one
(XPA)
(XPA)
DIC3.RRTRI = ´0´
XLT
DIC3.RRTRI = ´1´
XLT
active/stand-by
stand-by/actice
1/8 OctalLIU
1/8 OctalLIU
OctalLIU_Receiver_2
RTDMT
RTDMT
Characteristic Impedance (Ohm)
T1
100
100
100
430
1 : 1
(RPA)
TM
(RPA)
TM
FCLKX
FCLKR
FCLKX
FCLKR
RDOP
RDOP
XDIP
XDIP
´low´/´high´
Functional Description
J1
110
110
110
470
1 : 1
Framer
Rev. 1.0, 2005-06-02
PEF 22508 E
OctalLIU
TM