參數資料
型號: PEF80902
廠商: INFINEON TECHNOLOGIES AG
英文描述: 4B3T Second Gen. Modular ISDN NT(Ordinary)
中文描述: 4B3T二將軍模塊化綜合業(yè)務數字網新臺幣(普通)
文件頁數: 18/83頁
文件大小: 1168K
代理商: PEF80902
PEF 80902
Overview
Data Sheet
10
2001-11-12
Note: * denotes the duty cycle ’high’ : ’low’.
with:
U_Deactivated
:
Deactivated State
as defined in
Chapter 2.3.7.6
.
U_Activated
:
SBC Synchronizing
,
Wait for Info U4H
, and
Transparent
as defined in
Chapter 2.3.7.6
.
S-Activated
:
Activated State
as defined in
Chapter 2.4.5.1
.
Note: Optionally, pin ACT can drive a second LED with inverse polarity (connect this
additional LED to 3.3V only).
Another LED can be connected to pin
LP2I
to indicate an active Loopback 2 according
to
Table 4
.
Table 4
LP2I States
Pin LP2I
LED
Loopback 2 command in the C
L
-channel
V
DD
off
received no loopback 2 command or loopback deactivation
after a loopback 2 command.
GND
on
Loopback 2 command has been received. Complete analog
loop is being closed on the S-interface.
Test Modes
Different test patterns on the U- and S-interface can be generated via pins TM0-2
according to
Table 5
.
Table 5
Test Modes
TM0
TM1
TM2
U-transceiver
0
0
0
Reserved for future use. Normal operation in this
version.
0
0
1
0
1
0
Normal operation
Table 3
Pin ACT
V
DD
2Hz (1 : 1)* fast flashing
1Hz (3 : 1)* slow flashing 0
GND
ON
ACT States
LED
OFF
U_Deactivated
1
0
U_Activated
x
0
1
1
S_Activated
x
x
0
1
0
S-transceiver
96 kHz
1)
Continuous
Pulses
2 kHz
2)
Single
Pulses
0
1
1
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