PBL38650/2QNS Infineon Technologies, PBL38650/2QNS Datasheet - Page 37

• Manufacturer Part Number: PBL38650/2QNS
• Description: IC LINE INTERFACE SLIC PLCC-28
• Manufacturer: Infineon Technologies
• Series: FlexiSLIC™r

Specifications of PBL38650/2QNS

• Function: Subscriber Line Interface Concept (SLIC)
• Number Of Circuits: 1
• Voltage - Supply: 5V
• Current - Supply: 2.8mA
• Power (watts): 730mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Includes: Current Feeding, Ground Key Detector, Ring Relay Driver
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Interface: -
• Other names: SP000007904

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 12
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
-------------------------------------- -
Value (typ)
-155
+
I
VTX
RSN
RR
–
Table
R
V
RX
=
CODEC
R
1.25
--------- -
R
R
11.
I
RSN
T
can be calculated as
+
1.25
-------------------------------------- -
I
I
RT
RR
R
R
T
R
I
RX
37
–
R
V
RX
R
CODEC
RX
+
1.25
--------- -
R
Figure
R
R
RX
CODEC
+
_
can be considered to be
13, current summation
U
Rev. 2.0, 2005-04-14
REFcodec
Unit
A
PBL 38650/2
Battery Feed
FlexiSLIC
codecIF
[15]
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