PBL38620/2QNT Infineon Technologies, PBL38620/2QNT Datasheet - Page 36

• Manufacturer Part Number: PBL38620/2QNT
• Manufacturer: Infineon Technologies

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

without using any capacitors. This is done by connecting a resistor
terminal and ground. With current directions defined as in
gives:
where
From this equation the resistor
For the value on
If RSN is DC decoupled from the CODEC output, then
infinite.
The resistor
Table 11
Symbol
I
Figure 11
Data Sheet
–
R
RSN
R
I
RSN
=
------------------------------------------------------------------------------ -
–
V
CODEC
I
=
RSN
I
RT
R
–
R
Internal Bias Current of RSN
Codec Receive Interface
is the reference voltage of the CODEC at the receive output.
+
1.25
--------- -
has no influence in the AC transmission.
R
I
I
RSN
T
RRX
1.25
DC-GND
–
+1.25
I
, see
1.25
-------------------------------------- -
+
I
VTX
RSN
RR
–
Table
R
V
RX
=
CODEC
Value (typ)
-55
R
1.25
--------- -
R
R
I
11.
RS N
T
can be calculated as
+
1.25
-------------------------------------- -
I
I
RT
RR
R
R
T
R
I
RX
36
–
R
V
RX
CODEC
R
RX
+
1.25
--------- -
R
Figure
R
R
Unit
RX
CODEC
A
+
_
can be considered to be
11, current summation
R
R
U
Rev. 2.0, 2005-04-13
RE Fc odec
between the RSN
PBL 38620/2
Battery Feed
FlexiSLIC
codecIF
[14]
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