PBL38620/2QNT Infineon Technologies, PBL38620/2QNT Datasheet - Page 31

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PBL38620/2QNT

Manufacturer Part Number
PBL38620/2QNT
Description
Manufacturer
Infineon Technologies
Datasheet

Specifications of PBL38620/2QNT

Number Of Channels
1
On-hook Transmission
Yes
Polarity Reversal
Yes
On-chip Ring Relay Driver
Yes
Operating Temp Range
0C to 70C
Package Type
PLCC
Loop Current Limit
30mA
Operating Temperature Classification
Commercial
Pin Count
28
Mounting
Surface Mount
Operating Supply Voltage (max)
5.25/-58V
Lead Free Status / RoHS Status
Not Compliant
5.4
From
For applications where
the expression for G
5.5
From
5.6
The hybrid function can easily be implemented utilizing the uncommitted amplifier in
conventional non software programmable codec/filters. Please, refer to
impedance
combination codec/filter amplifier. As can be seen from the expression for the four-wire
to four-wire gain, G
converted by
be made to cancel by letting:
Data Sheet
G
G
G
---------------------------------- -
V
-------- -
R
RSN
TX
TX
4 2
4 2
4 4
+
Z
Equation [1]
Equation [1]
=
=
=
V
--------- -
Z
T
G
RX
B
--------- -
V
--------- -
V
V
V
2 4S
RX
RX
TR
TX
---------
Z
Four-Wire to Two-Wire Gain
Four-Wire to Four-Wire Gain
Hybrid Function
=
Z
Z
RX
T
B
0
R
=
=
+
TX
a current proportional to
2
-------------------------
2 G
R
to a current flowing into the same summing node. These currents can
-------- -
Z
-------- -
Z
Z
F
Z
to
to
4-4
RX
RX
E
4-2
T
T
=
1
, a voltage proportional to
L
Equation [3]
Equation [3]
2 4S
Z
simplifies to:
=
L
--------------- -
G
---------------------------------------------------------------- -
---------------------------------- -
0
RSN
2 4S
1
Z
T
G
Z
---------------------------------------------------------------- -
---------------------------------- -
2 4S
L
RSN
+
with
with
2
Z
R
+
T
E
E
G
F
Z
V
L
L
L
2 4S
RX
31
= 0:
= 0:
+
Z
is injected into the summing node of the
2
L
R
+
F
V
Z
RX
L
+
is returned to
2
R
F
V
Rev. 2.0, 2005-04-13
TX
. This voltage is
PBL 38620/2
Transmission
Figure
FlexiSLIC
10. Via
[10]
[11]
[7]
[8]
[9]

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