PEB2256H-V12 Infineon Technologies, PEB2256H-V12 Datasheet - Page 369
PEB2256H-V12
Manufacturer Part Number
PEB2256H-V12
Description
IC INTERFACE LINE 3.3V 80-MQFP
Manufacturer
Infineon Technologies
Datasheet
1.PEB2256H-V12.pdf
(490 pages)
Specifications of PEB2256H-V12
Applications
*
Interface
*
Voltage - Supply
*
Package / Case
80-SQFP
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PEB2256H-V12
PEB2256H-V12IN
PEB2256H-V12IN
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Part Number
Manufacturer
Quantity
Price
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Part Number:
PEB2256H-V12
Manufacturer:
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10 000
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Line Interface Mode 2 (Read/Write)
Value after reset: 20
LIM2
LBO(2:1)
SLT(1:0)
SCF
Data Sheet
LBO2
7
Line Build-Out
In long-haul applications LIM0.EQON = 1 a transmit filter can be
optionally placed on the transmit path to attenuate the data on pins
XL1/2. Selecting the transmitter attenuation is possible in steps of
7.5 dB at 772kHz which is according to FCC68 and ANSI T1.403.
To meet the line build-out defined by ANSI T1.403 registers XPM(2:0)
should be programmed as follows:
00 =
01 =
10 =
11 =
Receive Slicer Threshold
00 = The receive slicer generates a mark (digital one) if the voltage
01 = The receive slicer generates a mark (digital one) if the voltage
10 = The receive slicer generates a mark (digital one) if the voltage
11 = The receive slicer generates a mark (digital one) if the voltage
Select Corner Frequency of DCO-R
Setting this bit reduces the corner frequency of the DCO-R circuit by
the factor of ten to 0.6 Hz.
Note: Reducing the corner frequency of the DCO-R circuitry
increases the synchronization time before the frequencies are
synchronized.
LBO1
H
at RL1/2 exceeds 55% of the peak amplitude.
at RL1/2 exceeds 67% of the peak amplitude (may be used in
some T1/J1 applications).
at RL1/2 exceeds 50% of the peak amplitude (default,
recommended in T1/J1 mode).
at RL1/2 exceeds 45% of the peak amplitude.
0 dB
7.5 dB
-15 dB
-22.5 dB
SLT1
SLT0
369
XPM(2:0) = 20
XPM(2:0) = 20
XPM(2:0) = 20
SCF
ELT
H
H
H
, 02
, 01
, 01
H
H
H
, 51
, 51
, 50
H
H
H
T1/J1 Registers
LOS1
FALC56 V1.2
0
PEB 2256
2002-08-27
(3A)
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