PEF 22508 E V1.1-G Infineon Technologies, PEF 22508 E V1.1-G Datasheet - Page 76

• 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 24
LBO
0
0
7.5
15
22.5
Table 25
R
7.5
7.5
---
7.5
1) The values in this row refers to an ideal application without any parasitics. Any other parasitic resistances have to be taken
3.9.6.2
By setting of register bit XPM2.XPDIS the pulse shape will be configured by the registers TXP(16:1) (TXP1). Every
of these registers define the amplitude value of one sampling point in the symbol. A symbol is formed by 16
sampling points.
The default setting after reset for the registers TXP(16:1) generates also the E1 pulse shape (0m), but with an
unreduced amplitude. (TXP(9:16) = ´00
switching into T1 mode, an explicit new programming like
The pulse shape configuration will be done also by the registers TXP(16:1) if a LBO attenuation is selected. The
pulse shape is then determined by both, the values of TXP(16:1) and the LBO filtering.
The given values in
configurations listed in
Table 26
LBO
[dB]
0
0
0
0
0
7.5
155
22.5
Data Sheet
SER
)
1)
into account when calculating the final value of the output serial resistors.
[m]
0 to 40
40 to 81
81 to 122
122 to 162 399 to 533 63
162 to 200 533 to 655 63
--
--
--
Range
Recommended Pulse Shaper Programming for T1/J1 with Registers XPM(2:0) (Compatible to
QuadLIU (cont’d))
Recommended Pulse Shaper Programming for E1 with Registers XPM(2:0) (Compatible to
OctalLIU
Programming with TXP(16:1) Registers
Recommended Pulse Shaper Programming for T1 with registers TXP(16:1)
Z
( )
120
75
Reset values
DCIM Mode
Range
122 to 162
162 to 200
---
---
---
0
[ft]
0 to 133
133 to 266 48
266 to 399 56
--
--
--
Table 26
Range
TM
Table 23
)
and
TXP values, decimal
1
46
46
46
46
and shown in
Table 27
Transmit Line
Interface Mode
Non generic
Non generic
Non generic
2
46
50
58
63
63
46
46
46
Range
399 to 533
533 to 655
H
´; TXP(1:8) = ´38
3
46
48
54
58
63
46
46
46
are optimized for transformer ratio: 1 : 2.4; cable: AWG24 and
Figure
4
44
46
52
56
58
44
44
44
5
44
46
48
52
50
44
44
44
30.
76
XPM0
Hexadecimal
9C
8D
7B
EF
6
44
44
48
52
50
44
44
44
XPM0
5F
3F
Are not taken into account: pulse shape generation is
handled internally.
Table 26
H
´= 56
7
44
44
48
51
50
44
44
44
D
´) No reset value for T1 mode exists. So after
8
44
44
48
51
50
44
44
44
is necessary.
9
16
16
16
16
50
16
16
16
XPM1
03
03
03
BD
XPM1
3F
CB
10
-17 -14 -14 -4
-17 -14 -14 -4
-25 -17 -14 -4
-34 -32 -17 -4
-60 -26 -20 -12 -8
-17 -14 -14 -4
-17 -14 -14 -4
-17 -14 -14 -4
11
12
Functional Description
Rev. 1.0, 2005-06-02
13
11
11
XPM2
00
00
40
07
XPM2
PEF 22508 E
14
-4
-4
-4
-4
-4
-4
-4
OctalLIU
15
-4
-4
-4
-4
-6
-4
-4
-4
16
-4
-4
-4
-4
-4
-4
-4
-4
TM